58 Commits

Author SHA1 Message Date
Félix Boisselier
47770e2d34 Merge pull request #94 from Frix-x/develop
Shake&Tune v3.0.0
2024-04-29 10:45:00 +02:00
Félix Boisselier
7f46da1708 Merge branch 'main' into develop 2024-04-29 10:04:27 +02:00
Félix Boisselier
cf2cb2cf2f updated documentation with info on detected motor parameters 2024-04-28 17:42:12 +02:00
Félix Boisselier
bc80aa0be1 fixed error if CSV doesn't match the expected format 2024-04-28 17:24:54 +02:00
Félix Boisselier
ca45745a0c Motor info added to the vibration graphs (#93)
and reduced global vibration generation time by reducing segment lenghts
2024-04-27 17:08:13 +02:00
Félix Boisselier
ea11c262ff Merge pull request #91 from Frix-x/refact
refactoring code to OOP and with better linting and formating
2024-04-24 16:43:56 +02:00
Félix Boisselier
46dd0c2ca6 Merge branch 'develop' into refact 2024-04-24 16:41:35 +02:00
Félix Boisselier
19bc62a6b7 fixed an edge case error that can happens on damping ratio calculation 2024-04-24 15:28:33 +02:00
Félix Boisselier
178fa2ea3b fixed a None peaks array impossible to iterate 2024-04-24 14:52:54 +02:00
Félix Boisselier
f3ed4cd1a9 fixed optional parameters 2024-04-24 14:39:16 +02:00
Félix Boisselier
31a5ed8db2 fixed permission error for some OS 2024-04-24 14:32:02 +02:00
Félix Boisselier
abc20fdf41 fixed an issue in the good speed recommendations in vibrations graphs 2024-04-21 18:17:34 +00:00
Félix Boisselier
99b719051c fixed imports by running as a module 2024-04-20 19:15:24 +02:00
Félix Boisselier
94e110736a fully moved to Pathlib and global code improvements 2024-04-19 17:19:56 +02:00
Félix Boisselier
6184233b03 fixed an edge condition where min_required_file was unset 2024-04-18 23:41:13 +02:00
Félix Boisselier
f0f12a613a fixed parameter handling that was buggy for some WebUI when run and not setting all the params 2024-04-18 23:24:56 +02:00
Félix Boisselier
2cc9ac63e6 fixed number of results to keep 2024-04-18 23:03:24 +02:00
Félix Boisselier
e4810f82d0 changed target of Flake8 to 3.9 to avoid some errors with older debian versions 2024-04-18 22:55:57 +02:00
Félix Boisselier
bf6adcd93c added stacktrace and some small fixes 2024-04-18 22:50:18 +02:00
Félix Boisselier
1ce9fd5c2b Update README.md 2024-04-17 13:28:19 +02:00
Félix Boisselier
385ee01d34 warning in case git version is not found 2024-04-15 15:13:40 +02:00
Félix Boisselier
ab6e76ea11 better error handling 2024-04-15 14:49:16 +02:00
Félix Boisselier
915e69d420 optimized folder cleaning 2024-04-15 14:03:19 +02:00
Félix Boisselier
656f6d0d9e more factorization of the GraphCreator classes 2024-04-14 20:39:11 +02:00
Félix Boisselier
43ac2911a2 refactored is_workflow.py to use OOP 2024-04-14 17:30:06 +02:00
Félix Boisselier
c01704437e ignore reformat and linting commit 2024-04-13 13:17:41 +02:00
Félix Boisselier
ef006dbd1e Ruff and Flake8 code refactoring and linting 2024-04-13 13:12:43 +02:00
Félix Boisselier
41590be745 added pyproject.toml and rules for linting and formatting 2024-04-13 12:52:37 +02:00
Félix Boisselier
8336b62f97 changed repo architecture to decouple python and Klipper macros 2024-04-13 12:40:58 +02:00
Félix Boisselier
24fb5398c8 Merge pull request #88 from Frix-x/dir_vib
Updated vibration measurement macro to get better accuracy and readings at all angles at once!
2024-04-11 16:43:55 +02:00
Félix Boisselier
8b0e80c583 updated documentation with latest vibration graphs 2024-04-11 16:38:39 +02:00
Félix Boisselier
7652f0d8e7 updated vibration documentation and graph accordingly
to change the wording of the bad speed indicator to vibration metric
that is more generic and easy to understand
2024-04-10 18:52:09 +02:00
Félix Boisselier
bde8577d0e vibrations graphs documentation 2024-04-09 18:01:24 +02:00
Félix Boisselier
53bee00517 Merge branch 'develop' into dir_vib 2024-04-09 12:10:39 +02:00
Félix Boisselier
51f2efb5f8 added axis label to motor profile 2024-04-09 11:55:12 +02:00
Félix Boisselier
086293618a added belt and axes labels on major angle speed profiles 2024-04-06 00:39:08 +02:00
Félix Boisselier
cbc43f7e24 added old speed plots to new vibrations analysis and performances optimizations 2024-04-05 18:33:31 +02:00
Félix Boisselier
fa41637ac9 improved the motor resonance plotting to avoid low freq detection 2024-04-02 18:01:22 +02:00
Félix Boisselier
c2c05e51ae adjusted the symmetry score computation in vibration analysis 2024-04-02 15:47:45 +02:00
Félix Boisselier
617a47f968 added a compatibility mode for older Klipper version and DK bleeding edge 2024-04-02 11:11:37 +02:00
Félix Boisselier
83588029f1 improved vibration speed range and fixed zeta estimation crash 2024-04-02 10:48:01 +02:00
Félix Boisselier
4297aef0f5 cleaning up and automating the vibrations measurement 2024-03-29 18:00:31 +01:00
Félix Boisselier
37195051e4 Global vibration measurement tool 2024-03-25 17:56:03 +01:00
Félix Boisselier
0a25344b0c Merge branch 'main' into develop 2024-03-21 17:30:30 +01:00
Félix Boisselier
bf7a98d98b note on compatibility
added a note that Klippain is not a requirement: it can work on any Klipper machines
2024-03-21 14:31:55 +01:00
FOG_Yamato
82b91c1b40 Replace max_accel_to_decel with minimum_cruise_ratio (#53) 2024-03-15 19:20:51 +01:00
Félix Boisselier
536c3c0eff improved notes on LIS2DW with a worst case example 2024-03-11 09:07:06 +00:00
Félix Boisselier
73672fd694 changed macros names to reflect better their usage 2024-03-06 22:22:56 +00:00
Félix Boisselier
312a9c9ffa add note on Klipper version to documentation
Due to some breaking changes in the resonance testing code on the Klipper side, Shake&Tune has been modified to take advantage of this, and thus S&T v2.6+ will only support a Klipper version from Feb 17th 2024. If you are using an older version of Klipper, you must use S&T <=2.5.x
2024-02-20 15:27:09 +01:00
Félix Boisselier
f4e700a1ff fixed typo 2024-02-19 23:26:53 +01:00
Félix Boisselier
80c8da622d added proper use of damping ratio and SCV to compute shaper recommendations 2024-02-19 22:53:47 +01:00
Félix Boisselier
b42e377ac6 clarifying mounting point 2024-02-08 12:50:57 +00:00
Félix Boisselier
7cfd02a7c6 more details about LIS2DW problems 2024-02-08 09:52:31 +00:00
Félix Boisselier
9fa07a12c4 Half-Quadratic Gain method for damping ratio estimation
that should be more precise than the Half-Power method for higher damping ratio values (above 0.05)
2024-01-29 22:58:32 +01:00
shinanca
1a4fea3c8c More precise method for damping ration calculation 2024-01-25 16:00:30 +03:00
Félix Boisselier
eab10ce5da cast accel value to integer 2024-01-14 18:53:31 +01:00
Félix Boisselier
0696a60b7f add security note 2024-01-11 12:15:17 +01:00
Félix Boisselier
ac96cb2eb7 modified moonraker update management section and install 2024-01-09 16:14:45 +00:00
46 changed files with 2639 additions and 1403 deletions

1
.git-blame-ignore-revs Normal file
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@@ -0,0 +1 @@
ef006dbd1e31cc7cae2fae978401a818ee2025d1

3
.gitignore vendored
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@@ -158,3 +158,6 @@ cython_debug/
# and can be added to the global gitignore or merged into this file. For a more nuclear
# option (not recommended) you can uncomment the following to ignore the entire idea folder.
#.idea/
test/
.vscode/

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@@ -16,7 +16,7 @@ gcode:
{% set accel = [accel, printer.configfile.settings.printer.max_accel]|min %}
{% set old_accel = printer.toolhead.max_accel %}
{% set old_accel_to_decel = printer.toolhead.max_accel_to_decel %}
{% set old_cruise_ratio = printer.toolhead.minimum_cruise_ratio %}
{% set old_sqv = printer.toolhead.square_corner_velocity %}
@@ -34,7 +34,7 @@ gcode:
G90
# Set the wanted acceleration values (not too high to avoid oscillation, not too low to be able to reach constant speed on each segments)
SET_VELOCITY_LIMIT ACCEL={accel} ACCEL_TO_DECEL={accel} SQUARE_CORNER_VELOCITY={[(accel / 1000), 5.0]|max}
SET_VELOCITY_LIMIT ACCEL={accel} MINIMUM_CRUISE_RATIO=0 SQUARE_CORNER_VELOCITY={[(accel / 1000), 5.0]|max}
# Going to the start position
G1 Z{z_height} F{feedrate_travel / 8}
@@ -52,9 +52,9 @@ gcode:
ACCELEROMETER_MEASURE CHIP={accel_chip} NAME=axemap
RESPOND MSG="Analysis of the movements..."
RUN_SHELL_COMMAND CMD=shaketune PARAMS="--type axesmap --accel {accel} --chip_name {accel_chip}"
RUN_SHELL_COMMAND CMD=shaketune PARAMS="--type axesmap --accel {accel|int} --chip_name {accel_chip}"
# Restore the previous acceleration values
SET_VELOCITY_LIMIT ACCEL={old_accel} ACCEL_TO_DECEL={old_accel_to_decel} SQUARE_CORNER_VELOCITY={old_sqv}
SET_VELOCITY_LIMIT ACCEL={old_accel} MINIMUM_CRUISE_RATIO={old_cruise_ratio} SQUARE_CORNER_VELOCITY={old_sqv}
RESTORE_GCODE_STATE NAME=STATE_AXESMAP_CALIBRATION

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@@ -10,8 +10,10 @@ gcode:
{% set max_freq = params.FREQ_END|default(133.3)|float %}
{% set hz_per_sec = params.HZ_PER_SEC|default(1)|float %}
{% set axis = params.AXIS|default("all")|string|lower %}
{% set scv = params.SCV|default(None) %}
{% set max_sm = params.MAX_SMOOTHING|default(None) %}
{% set keep_results = params.KEEP_N_RESULTS|default(3)|int %}
{% set keep_csv = params.KEEP_CSV|default(True) %}
{% set keep_csv = params.KEEP_CSV|default(0)|int %}
{% set X, Y = False, False %}
@@ -25,13 +27,21 @@ gcode:
{ action_raise_error("AXIS selection invalid. Should be either all, x or y!") }
{% endif %}
{% if scv is none or scv == "" %}
{% set scv = printer.toolhead.square_corner_velocity %}
{% endif %}
{% if max_sm == "" %}
{% set max_sm = none %}
{% endif %}
{% if X %}
TEST_RESONANCES AXIS=X OUTPUT=raw_data NAME=x FREQ_START={min_freq} FREQ_END={max_freq} HZ_PER_SEC={hz_per_sec}
M400
RESPOND MSG="X axis frequency profile generation..."
RESPOND MSG="This may take some time (1-3min)"
RUN_SHELL_COMMAND CMD=shaketune PARAMS="--type shaper {% if keep_csv %}--keep_csv{% endif %}"
RUN_SHELL_COMMAND CMD=shaketune PARAMS="--type shaper --scv {scv} {% if max_sm is not none %}--max_smoothing {max_sm}{% endif %} {% if keep_csv %}--keep_csv{% endif %} --keep_results {keep_results}"
{% endif %}
{% if Y %}
@@ -40,8 +50,5 @@ gcode:
RESPOND MSG="Y axis frequency profile generation..."
RESPOND MSG="This may take some time (1-3min)"
RUN_SHELL_COMMAND CMD=shaketune PARAMS="--type shaper {% if keep_csv %}--keep_csv{% endif %}"
RUN_SHELL_COMMAND CMD=shaketune PARAMS="--type shaper --scv {scv} {% if max_sm is not none %}--max_smoothing {max_sm}{% endif %} {% if keep_csv %}--keep_csv{% endif %} --keep_results {keep_results}"
{% endif %}
M400
RUN_SHELL_COMMAND CMD=shaketune PARAMS="--type clean --keep_results {keep_results}"

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@@ -3,14 +3,14 @@
################################################
# Written by Frix_x#0161 #
[gcode_macro BELTS_SHAPER_CALIBRATION]
[gcode_macro COMPARE_BELTS_RESPONSES]
description: Perform a custom half-axis test to analyze and compare the frequency profiles of individual belts on CoreXY printers
gcode:
{% set min_freq = params.FREQ_START|default(5)|float %}
{% set max_freq = params.FREQ_END|default(133.33)|float %}
{% set hz_per_sec = params.HZ_PER_SEC|default(1)|float %}
{% set keep_results = params.KEEP_N_RESULTS|default(3)|int %}
{% set keep_csv = params.KEEP_CSV|default(True) %}
{% set keep_csv = params.KEEP_CSV|default(0)|int %}
TEST_RESONANCES AXIS=1,1 OUTPUT=raw_data NAME=b FREQ_START={min_freq} FREQ_END={max_freq} HZ_PER_SEC={hz_per_sec}
M400
@@ -20,6 +20,4 @@ gcode:
RESPOND MSG="Belts comparative frequency profile generation..."
RESPOND MSG="This may take some time (3-5min)"
RUN_SHELL_COMMAND CMD=shaketune PARAMS="--type belts {% if keep_csv %}--keep_csv{% endif %}"
M400
RUN_SHELL_COMMAND CMD=shaketune PARAMS="--type clean --keep_results {keep_results}"
RUN_SHELL_COMMAND CMD=shaketune PARAMS="--type belts {% if keep_csv %}--keep_csv{% endif %} --keep_results {keep_results}"

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@@ -1,106 +1,33 @@
################################################
###### VIBRATIONS AND SPEED OPTIMIZATIONS ######
################################################
#########################################
###### MACHINE VIBRATIONS ANALYSIS ######
#########################################
# Written by Frix_x#0161 #
[gcode_macro VIBRATIONS_CALIBRATION]
[gcode_macro CREATE_VIBRATIONS_PROFILE]
gcode:
{% set size = params.SIZE|default(60)|int %} # size of the area where the movements are done
{% set direction = params.DIRECTION|default('XY') %} # can be set to either XY, AB, ABXY, A, B, X, Y, Z
{% set size = params.SIZE|default(100)|int %} # size of the circle where the angled lines are done
{% set z_height = params.Z_HEIGHT|default(20)|int %} # z height to put the toolhead before starting the movements
{% set min_speed = params.MIN_SPEED|default(20)|float * 60 %} # minimum feedrate for the movements
{% set max_speed = params.MAX_SPEED|default(200)|float * 60 %} # maximum feedrate for the movements
{% set speed_increment = params.SPEED_INCREMENT|default(2)|float * 60 %} # feedrate increment between each move
{% set feedrate_travel = params.TRAVEL_SPEED|default(200)|int * 60 %} # travel feedrate between moves
{% set accel = params.ACCEL|default(3000)|int %} # accel value used to move on the pattern
{% set accel_chip = params.ACCEL_CHIP|default("adxl345") %} # ADXL chip name in the config
{% set keep_results = params.KEEP_N_RESULTS|default(3)|int %}
{% set keep_csv = params.KEEP_CSV|default(True) %}
{% set keep_csv = params.KEEP_CSV|default(0)|int %}
{% set mid_x = printer.toolhead.axis_maximum.x|float / 2 %}
{% set mid_y = printer.toolhead.axis_maximum.y|float / 2 %}
{% set nb_samples = ((max_speed - min_speed) / speed_increment + 1) | int %}
{% set min_speed = 2 * 60 %} # minimum feedrate for the movements is set to 2mm/s
{% set nb_speed_samples = ((max_speed - min_speed) / speed_increment + 1) | int %}
{% set accel = [accel, printer.configfile.settings.printer.max_accel]|min %}
{% set old_accel = printer.toolhead.max_accel %}
{% set old_accel_to_decel = printer.toolhead.max_accel_to_decel %}
{% set old_cruise_ratio = printer.toolhead.minimum_cruise_ratio %}
{% set old_sqv = printer.toolhead.square_corner_velocity %}
{% set direction_factor = {
'XY' : {
'start' : {'x': -0.5, 'y': -0.5 },
'move_factors' : {
'0' : {'x': 0.5, 'y': -0.5, 'z': 0.0 },
'1' : {'x': 0.5, 'y': 0.5, 'z': 0.0 },
'2' : {'x': -0.5, 'y': 0.5, 'z': 0.0 },
'3' : {'x': -0.5, 'y': -0.5, 'z': 0.0 }
}
},
'AB' : {
'start' : {'x': 0.0, 'y': 0.0 },
'move_factors' : {
'0' : {'x': 0.5, 'y': -0.5, 'z': 0.0 },
'1' : {'x': -0.5, 'y': 0.5, 'z': 0.0 },
'2' : {'x': 0.0, 'y': 0.0, 'z': 0.0 },
'3' : {'x': 0.5, 'y': 0.5, 'z': 0.0 },
'4' : {'x': -0.5, 'y': -0.5, 'z': 0.0 },
'5' : {'x': 0.0, 'y': 0.0, 'z': 0.0 }
}
},
'ABXY' : {
'start' : {'x': -0.5, 'y': 0.5 },
'move_factors' : {
'0' : {'x': -0.5, 'y': -0.5, 'z': 0.0 },
'1' : {'x': 0.5, 'y': -0.5, 'z': 0.0 },
'2' : {'x': -0.5, 'y': 0.5, 'z': 0.0 },
'3' : {'x': 0.5, 'y': 0.5, 'z': 0.0 },
'4' : {'x': -0.5, 'y': -0.5, 'z': 0.0 },
'5' : {'x': -0.5, 'y': 0.5, 'z': 0.0 }
}
},
'B' : {
'start' : {'x': 0.5, 'y': 0.5 },
'move_factors' : {
'0' : {'x': -0.5, 'y': -0.5, 'z': 0.0 },
'1' : {'x': 0.5, 'y': 0.5, 'z': 0.0 }
}
},
'A' : {
'start' : {'x': -0.5, 'y': 0.5 },
'move_factors' : {
'0' : {'x': 0.5, 'y': -0.5, 'z': 0.0 },
'1' : {'x': -0.5, 'y': 0.5, 'z': 0.0 }
}
},
'X' : {
'start' : {'x': -0.5, 'y': 0.0 },
'move_factors' : {
'0' : {'x': 0.5, 'y': 0.0, 'z': 0.0 },
'1' : {'x': -0.5, 'y': 0.0, 'z': 0.0 }
}
},
'Y' : {
'start' : {'x': 0.0, 'y': 0.5 },
'move_factors' : {
'0' : {'x': 0.0, 'y': -0.5, 'z': 0.0 },
'1' : {'x': 0.0, 'y': 0.5, 'z': 0.0 }
}
},
'Z' : {
'start' : {'x': 0.0, 'y': 0.0 },
'move_factors' : {
'0' : {'x': 0.0, 'y': 0.0, 'z': 1.0 },
'1' : {'x': 0.0, 'y': 0.0, 'z': 0.0 }
}
},
'E' : {
'start' : {'x': 0.0, 'y': 0.0 },
'move_factor' : 0.05
}
}
%}
{% set kinematics = printer.configfile.settings.printer.kinematics %}
{% if not 'xyz' in printer.toolhead.homed_axes %}
@@ -111,56 +38,177 @@ gcode:
{ action_raise_error("Only 2 decimal digits are allowed for SPEED_INCREMENT") }
{% endif %}
{% if (size / (max_speed / 60)) < 0.25 and direction != 'E' %}
{% if (size / (max_speed / 60)) < 0.25 %}
{ action_raise_error("SIZE is too small for this MAX_SPEED. Increase SIZE or decrease MAX_SPEED!") }
{% endif %}
{% if not (direction in direction_factor) %}
{ action_raise_error("DIRECTION is not valid. Only XY, AB, ABXY, A, B, X, Y, Z or E is allowed!") }
{% endif %}
{action_respond_info("")}
{action_respond_info("Starting speed and vibration calibration")}
{action_respond_info("Starting machine vibrations profile measurement")}
{action_respond_info("This operation can not be interrupted by normal means. Hit the \"emergency stop\" button to stop it if needed")}
{action_respond_info("")}
SAVE_GCODE_STATE NAME=STATE_VIBRATIONS_CALIBRATION
SAVE_GCODE_STATE NAME=CREATE_VIBRATIONS_PROFILE
G90
# Set the wanted acceleration values (not too high to avoid oscillation, not too low to be able to reach constant speed on each segments)
SET_VELOCITY_LIMIT ACCEL={accel} ACCEL_TO_DECEL={accel} SQUARE_CORNER_VELOCITY={[(accel / 1000), 5.0]|max}
SET_VELOCITY_LIMIT ACCEL={accel} MINIMUM_CRUISE_RATIO=0 SQUARE_CORNER_VELOCITY={[(accel / 1000), 5.0]|max}
# Going to the start position
G1 Z{z_height} F{feedrate_travel / 10}
G1 X{mid_x + (size * direction_factor[direction].start.x) } Y{mid_y + (size * direction_factor[direction].start.y)} F{feedrate_travel}
G1 X{mid_x } Y{mid_y} F{feedrate_travel}
# vibration pattern for each frequency
{% for curr_sample in range(0, nb_samples) %}
{% set curr_speed = min_speed + curr_sample * speed_increment %}
RESPOND MSG="{"Current speed: %.2f mm/s" % (curr_speed / 60)|float}"
ACCELEROMETER_MEASURE CHIP={accel_chip}
{% if direction == 'E' %}
G0 E{curr_speed*direction_factor[direction].move_factor} F{curr_speed}
{% else %}
{% for key, factor in direction_factor[direction].move_factors|dictsort %}
G1 X{mid_x + (size * factor.x) } Y{mid_y + (size * factor.y)} Z{z_height + (size * factor.z)} F{curr_speed}
{% if kinematics == "cartesian" %}
# Cartesian motors are on X and Y axis directly
RESPOND MSG="Cartesian kinematics mode"
{% set main_angles = [0, 90] %}
{% elif kinematics == "corexy" %}
# CoreXY motors are on A and B axis (45 and 135 degrees)
RESPOND MSG="CoreXY kinematics mode"
{% set main_angles = [45, 135] %}
{% else %}
{ action_raise_error("Only Cartesian and CoreXY kinematics are supported at the moment for the vibrations measurement tool!") }
{% endif %}
{% set pi = (3.141592653589793) | float %}
{% set tau = (pi * 2) | float %}
{% for curr_angle in main_angles %}
{% for curr_speed_sample in range(0, nb_speed_samples) %}
{% set curr_speed = min_speed + curr_speed_sample * speed_increment %}
{% set rad_angle_full = (curr_angle|float * pi / 180) %}
# -----------------------------------------------------------------------------------------------------------
# Here are some maths to approximate the sin and cos values of rad_angle in Jinja
# Thanks a lot to Aubey! for sharing the idea of using hardcoded Taylor series and
# the associated bit of code to do it easily! This is pure madness!
{% set rad_angle = ((rad_angle_full % tau) - (tau / 2)) | float %}
{% if rad_angle < (-(tau / 4)) %}
{% set rad_angle = (rad_angle + (tau / 2)) | float %}
{% set final_mult = (-1) %}
{% elif rad_angle > (tau / 4) %}
{% set rad_angle = (rad_angle - (tau / 2)) | float %}
{% set final_mult = (-1) %}
{% else %}
{% set final_mult = (1) %}
{% endif %}
{% set sin0 = (rad_angle) %}
{% set sin1 = ((rad_angle ** 3) / 6) | float %}
{% set sin2 = ((rad_angle ** 5) / 120) | float %}
{% set sin3 = ((rad_angle ** 7) / 5040) | float %}
{% set sin4 = ((rad_angle ** 9) / 362880) | float %}
{% set sin5 = ((rad_angle ** 11) / 39916800) | float %}
{% set sin6 = ((rad_angle ** 13) / 6227020800) | float %}
{% set sin7 = ((rad_angle ** 15) / 1307674368000) | float %}
{% set sin = (-(sin0 - sin1 + sin2 - sin3 + sin4 - sin5 + sin6 - sin7) * final_mult) | float %}
{% set cos0 = (1) | float %}
{% set cos1 = ((rad_angle ** 2) / 2) | float %}
{% set cos2 = ((rad_angle ** 4) / 24) | float %}
{% set cos3 = ((rad_angle ** 6) / 720) | float %}
{% set cos4 = ((rad_angle ** 8) / 40320) | float %}
{% set cos5 = ((rad_angle ** 10) / 3628800) | float %}
{% set cos6 = ((rad_angle ** 12) / 479001600) | float %}
{% set cos7 = ((rad_angle ** 14) / 87178291200) | float %}
{% set cos = (-(cos0 - cos1 + cos2 - cos3 + cos4 - cos5 + cos6 - cos7) * final_mult) | float %}
# -----------------------------------------------------------------------------------------------------------
# Reduce the segments length for the lower speed range (0-100mm/s). The minimum length is 1/3 of the SIZE and is gradually increased
# to the nominal SIZE at 100mm/s. No further size changes are made above this speed. The goal is to ensure that the print head moves
# enough to collect enough data for vibration analysis, without doing unnecessary distance to save time. At higher speeds, the full
# segments lengths are used because the head moves faster and travels more distance in the same amount of time and we want enough data
{% if curr_speed < (100 * 60) %}
{% set segment_length_multiplier = 1/5 + 4/5 * (curr_speed / 60) / 100 %}
{% else %}
{% set segment_length_multiplier = 1 %}
{% endif %}
# Calculate angle coordinates using trigonometry and length multiplier and move to start point
{% set dx = (size / 2) * cos * segment_length_multiplier %}
{% set dy = (size / 2) * sin * segment_length_multiplier %}
G1 X{mid_x - dx} Y{mid_y - dy} F{feedrate_travel}
# Adjust the number of back and forth movements based on speed to also save time on lower speed range
# 3 movements are done by default, reduced to 2 between 150-250mm/s and to 1 under 150mm/s.
{% set movements = 3 %}
{% if curr_speed < (150 * 60) %}
{% set movements = 1 %}
{% elif curr_speed < (250 * 60) %}
{% set movements = 2 %}
{% endif %}
ACCELEROMETER_MEASURE CHIP={accel_chip}
# Back and forth movements to record the vibrations at constant speed in both direction
{% for n in range(movements) %}
G1 X{mid_x + dx} Y{mid_y + dy} F{curr_speed}
G1 X{mid_x - dx} Y{mid_y - dy} F{curr_speed}
{% endfor %}
{% endif %}
ACCELEROMETER_MEASURE CHIP={accel_chip} NAME=sp{("%.2f" % (curr_speed / 60)|float)|replace('.','_')}n1
G4 P300
ACCELEROMETER_MEASURE CHIP={accel_chip} NAME=an{("%.2f" % curr_angle|float)|replace('.','_')}sp{("%.2f" % (curr_speed / 60)|float)|replace('.','_')}
G4 P300
M400
M400
{% endfor %}
{% endfor %}
RESPOND MSG="Machine and motors vibration graph generation..."
RESPOND MSG="This may take some time (3-5min)"
RUN_SHELL_COMMAND CMD=shaketune PARAMS="--type vibrations --axis_name {direction} --accel {accel} --chip_name {accel_chip} {% if keep_csv %}--keep_csv{% endif %}"
M400
RUN_SHELL_COMMAND CMD=shaketune PARAMS="--type clean --keep_results {keep_results}"
# Restore the previous acceleration values
SET_VELOCITY_LIMIT ACCEL={old_accel} ACCEL_TO_DECEL={old_accel_to_decel} SQUARE_CORNER_VELOCITY={old_sqv}
SET_VELOCITY_LIMIT ACCEL={old_accel} MINIMUM_CRUISE_RATIO={old_cruise_ratio} SQUARE_CORNER_VELOCITY={old_sqv}
RESTORE_GCODE_STATE NAME=STATE_VIBRATIONS_CALIBRATION
# Extract the TMC names and configuration
{% set ns_x = namespace(path='') %}
{% set ns_y = namespace(path='') %}
{% for item in printer %}
{% set parts = item.split() %}
{% if parts|length == 2 and parts[0].startswith('tmc') and parts[0][3:].isdigit() %}
{% if parts[1] == 'stepper_x' %}
{% set ns_x.path = parts[0] %}
{% elif parts[1] == 'stepper_y' %}
{% set ns_y.path = parts[0] %}
{% endif %}
{% endif %}
{% endfor %}
{% if ns_x.path and ns_y.path %}
{% set metadata =
"stepper_x_tmc:" ~ ns_x.path ~ "|"
"stepper_x_run_current:" ~ (printer[ns_x.path + ' stepper_x'].run_current | round(2) | string) ~ "|"
"stepper_x_hold_current:" ~ (printer[ns_x.path + ' stepper_x'].hold_current | round(2) | string) ~ "|"
"stepper_y_tmc:" ~ ns_y.path ~ "|"
"stepper_y_run_current:" ~ (printer[ns_y.path + ' stepper_y'].run_current | round(2) | string) ~ "|"
"stepper_y_hold_current:" ~ (printer[ns_y.path + ' stepper_y'].hold_current | round(2) | string) ~ "|"
%}
{% set autotune_x = printer.configfile.config['autotune_tmc stepper_x'] if 'autotune_tmc stepper_x' in printer.configfile.config else none %}
{% set autotune_y = printer.configfile.config['autotune_tmc stepper_y'] if 'autotune_tmc stepper_y' in printer.configfile.config else none %}
{% if autotune_x and autotune_y %}
{% set stepper_x_voltage = autotune_x.voltage if autotune_x.voltage else '24.0' %}
{% set stepper_y_voltage = autotune_y.voltage if autotune_y.voltage else '24.0' %}
{% set metadata = metadata ~
"autotune_enabled:True|"
"stepper_x_motor:" ~ autotune_x.motor ~ "|"
"stepper_x_voltage:" ~ stepper_x_voltage ~ "|"
"stepper_y_motor:" ~ autotune_y.motor ~ "|"
"stepper_y_voltage:" ~ stepper_y_voltage ~ "|"
%}
{% else %}
{% set metadata = metadata ~ "autotune_enabled:False|" %}
{% endif %}
DUMP_TMC STEPPER=stepper_x
DUMP_TMC STEPPER=stepper_y
{% else %}
{ action_respond_info("No TMC drivers found for X and Y steppers") }
{% endif %}
RESPOND MSG="Machine vibrations profile generation..."
RESPOND MSG="This may take some time (3-5min)"
RUN_SHELL_COMMAND CMD=shaketune PARAMS="--type vibrations --accel {accel|int} --kinematics {kinematics} {% if metadata %}--metadata {metadata}{% endif %} --chip_name {accel_chip} {% if keep_csv %}--keep_csv{% endif %} --keep_results {keep_results}"
RESTORE_GCODE_STATE NAME=CREATE_VIBRATIONS_PROFILE

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@@ -1,121 +0,0 @@
#!/usr/bin/env python3
# Common functions for the Shake&Tune package
# Written by Frix_x#0161 #
import math
import os, sys
from importlib import import_module
from pathlib import Path
import numpy as np
from scipy.signal import spectrogram
from git import GitCommandError, Repo
def parse_log(logname):
with open(logname) as f:
for header in f:
if not header.startswith('#'):
break
if not header.startswith('freq,psd_x,psd_y,psd_z,psd_xyz'):
# Raw accelerometer data
return np.loadtxt(logname, comments='#', delimiter=',')
# Power spectral density data or shaper calibration data
raise ValueError("File %s does not contain raw accelerometer data and therefore "
"is not supported by Shake&Tune. Please use the official Klipper "
"script to process it instead." % (logname,))
def setup_klipper_import(kdir):
kdir = os.path.expanduser(kdir)
sys.path.append(os.path.join(kdir, 'klippy'))
return import_module('.shaper_calibrate', 'extras')
# This is used to print the current S&T version on top of the png graph file
def get_git_version():
try:
# Get the absolute path of the script, resolving any symlinks
# Then get 2 times to parent dir to be at the git root folder
script_path = Path(__file__).resolve()
repo_path = script_path.parents[2]
repo = Repo(repo_path)
try:
version = repo.git.describe('--tags')
except GitCommandError:
# If no tag is found, use the simplified commit SHA instead
version = repo.head.commit.hexsha[:7]
return version
except Exception as e:
return None
# This is Klipper's spectrogram generation function adapted to use Scipy
def compute_spectrogram(data):
N = data.shape[0]
Fs = N / (data[-1, 0] - data[0, 0])
# Round up to a power of 2 for faster FFT
M = 1 << int(.5 * Fs - 1).bit_length()
window = np.kaiser(M, 6.)
def _specgram(x):
return spectrogram(x, fs=Fs, window=window, nperseg=M, noverlap=M//2,
detrend='constant', scaling='density', mode='psd')
d = {'x': data[:, 1], 'y': data[:, 2], 'z': data[:, 3]}
f, t, pdata = _specgram(d['x'])
for axis in 'yz':
pdata += _specgram(d[axis])[2]
return pdata, t, f
# Compute natural resonant frequency and damping ratio by using the half power bandwidth method with interpolated frequencies
def compute_mechanical_parameters(psd, freqs):
max_power_index = np.argmax(psd)
fr = freqs[max_power_index]
max_power = psd[max_power_index]
half_power = max_power / math.sqrt(2)
idx_below = np.where(psd[:max_power_index] <= half_power)[0][-1]
idx_above = np.where(psd[max_power_index:] <= half_power)[0][0] + max_power_index
freq_below_half_power = freqs[idx_below] + (half_power - psd[idx_below]) * (freqs[idx_below + 1] - freqs[idx_below]) / (psd[idx_below + 1] - psd[idx_below])
freq_above_half_power = freqs[idx_above - 1] + (half_power - psd[idx_above - 1]) * (freqs[idx_above] - freqs[idx_above - 1]) / (psd[idx_above] - psd[idx_above - 1])
bandwidth = freq_above_half_power - freq_below_half_power
zeta = bandwidth / (2 * fr)
return fr, zeta, max_power_index
# This find all the peaks in a curve by looking at when the derivative term goes from positive to negative
# Then only the peaks found above a threshold are kept to avoid capturing peaks in the low amplitude noise of a signal
def detect_peaks(data, indices, detection_threshold, relative_height_threshold=None, window_size=5, vicinity=3):
# Smooth the curve using a moving average to avoid catching peaks everywhere in noisy signals
kernel = np.ones(window_size) / window_size
smoothed_data = np.convolve(data, kernel, mode='valid')
mean_pad = [np.mean(data[:window_size])] * (window_size // 2)
smoothed_data = np.concatenate((mean_pad, smoothed_data))
# Find peaks on the smoothed curve
smoothed_peaks = np.where((smoothed_data[:-2] < smoothed_data[1:-1]) & (smoothed_data[1:-1] > smoothed_data[2:]))[0] + 1
smoothed_peaks = smoothed_peaks[smoothed_data[smoothed_peaks] > detection_threshold]
# Additional validation for peaks based on relative height
valid_peaks = smoothed_peaks
if relative_height_threshold is not None:
valid_peaks = []
for peak in smoothed_peaks:
peak_height = smoothed_data[peak] - np.min(smoothed_data[max(0, peak-vicinity):min(len(smoothed_data), peak+vicinity+1)])
if peak_height > relative_height_threshold * smoothed_data[peak]:
valid_peaks.append(peak)
# Refine peak positions on the original curve
refined_peaks = []
for peak in valid_peaks:
local_max = peak + np.argmax(data[max(0, peak-vicinity):min(len(data), peak+vicinity+1)]) - vicinity
refined_peaks.append(local_max)
num_peaks = len(refined_peaks)
return num_peaks, np.array(refined_peaks), indices[refined_peaks]

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@@ -1,466 +0,0 @@
#!/usr/bin/env python3
##################################################
###### SPEED AND VIBRATIONS PLOTTING SCRIPT ######
##################################################
# Written by Frix_x#0161 #
# Be sure to make this script executable using SSH: type 'chmod +x ./graph_vibrations.py' when in the folder !
#####################################################################
################ !!! DO NOT EDIT BELOW THIS LINE !!! ################
#####################################################################
import optparse, matplotlib, re, os, operator
from datetime import datetime
from collections import OrderedDict
import numpy as np
import matplotlib.pyplot as plt
import matplotlib.font_manager, matplotlib.ticker, matplotlib.gridspec
matplotlib.use('Agg')
from locale_utils import set_locale, print_with_c_locale
from common_func import compute_mechanical_parameters, detect_peaks, get_git_version, parse_log, setup_klipper_import
PEAKS_DETECTION_THRESHOLD = 0.05
PEAKS_RELATIVE_HEIGHT_THRESHOLD = 0.04
VALLEY_DETECTION_THRESHOLD = 0.1 # Lower is more sensitive
KLIPPAIN_COLORS = {
"purple": "#70088C",
"orange": "#FF8D32",
"dark_purple": "#150140",
"dark_orange": "#F24130",
"red_pink": "#F2055C"
}
######################################################################
# Computation
######################################################################
# Call to the official Klipper input shaper object to do the PSD computation
def calc_freq_response(data):
helper = shaper_calibrate.ShaperCalibrate(printer=None)
return helper.process_accelerometer_data(data)
def compute_vibration_spectrogram(datas, group, max_freq):
psd_list = []
first_freqs = None
signal_axes = ['x', 'y', 'z', 'all']
for i in range(0, len(datas), group):
# Round up to the nearest power of 2 for faster FFT
N = datas[i].shape[0]
T = datas[i][-1,0] - datas[i][0,0]
M = 1 << int((N/T) * 0.5 - 1).bit_length()
if N <= M:
# If there is not enough lines in the array to be able to round up to the
# nearest power of 2, we need to pad some zeros at the end of the array to
# avoid entering a blocking state from Klipper shaper_calibrate.py
datas[i] = np.pad(datas[i], [(0, (M-N)+1), (0, 0)], mode='constant', constant_values=0)
freqrsp = calc_freq_response(datas[i])
for n in range(group - 1):
data = datas[i + n + 1]
# Round up to the nearest power of 2 for faster FFT
N = data.shape[0]
T = data[-1,0] - data[0,0]
M = 1 << int((N/T) * 0.5 - 1).bit_length()
if N <= M:
# If there is not enough lines in the array to be able to round up to the
# nearest power of 2, we need to pad some zeros at the end of the array to
# avoid entering a blocking state from Klipper shaper_calibrate.py
data = np.pad(data, [(0, (M-N)+1), (0, 0)], mode='constant', constant_values=0)
freqrsp.add_data(calc_freq_response(data))
if not psd_list:
# First group, just put it in the result list
first_freqs = freqrsp.freq_bins
psd = freqrsp.psd_sum[first_freqs <= max_freq]
px = freqrsp.psd_x[first_freqs <= max_freq]
py = freqrsp.psd_y[first_freqs <= max_freq]
pz = freqrsp.psd_z[first_freqs <= max_freq]
psd_list.append([psd, px, py, pz])
else:
# Not the first group, we need to interpolate every new signals
# to the first one to equalize the frequency_bins between them
signal_normalized = dict()
freqs = freqrsp.freq_bins
for axe in signal_axes:
signal = freqrsp.get_psd(axe)
signal_normalized[axe] = np.interp(first_freqs, freqs, signal)
# Remove data above max_freq on all axes and add to the result list
psd = signal_normalized['all'][first_freqs <= max_freq]
px = signal_normalized['x'][first_freqs <= max_freq]
py = signal_normalized['y'][first_freqs <= max_freq]
pz = signal_normalized['z'][first_freqs <= max_freq]
psd_list.append([psd, px, py, pz])
return np.array(first_freqs[first_freqs <= max_freq]), np.array(psd_list)
def compute_speed_profile(speeds, freqs, psd_list):
# Preallocate arrays as psd_list is known and consistent
pwrtot_sum = np.zeros(len(psd_list))
pwrtot_x = np.zeros(len(psd_list))
pwrtot_y = np.zeros(len(psd_list))
pwrtot_z = np.zeros(len(psd_list))
for i, psd in enumerate(psd_list):
pwrtot_sum[i] = np.trapz(psd[0], freqs)
pwrtot_x[i] = np.trapz(psd[1], freqs)
pwrtot_y[i] = np.trapz(psd[2], freqs)
pwrtot_z[i] = np.trapz(psd[3], freqs)
# Resample the signals to get a better detection of the valleys of low energy
# and avoid getting limited by the speed increment defined by the user
resampled_speeds, resampled_power_sum = resample_signal(speeds, pwrtot_sum)
_, resampled_pwrtot_x = resample_signal(speeds, pwrtot_x)
_, resampled_pwrtot_y = resample_signal(speeds, pwrtot_y)
_, resampled_pwrtot_z = resample_signal(speeds, pwrtot_z)
return resampled_speeds, [resampled_power_sum, resampled_pwrtot_x, resampled_pwrtot_y, resampled_pwrtot_z]
def compute_motor_profile(power_spectral_densities):
# Sum the PSD across all speeds for each frequency of the spectrogram. Basically this
# is equivalent to sum up all the spectrogram column by column to plot the total on the right
motor_total_vibration = np.sum([psd[0] for psd in power_spectral_densities], axis=0)
# Then a very little smoothing of the signal is applied to avoid too much noise and sharp peaks on it and simplify
# the resonance frequency and damping ratio estimation later on. Also, too much smoothing is bad and would alter the results
smoothed_motor_total_vibration = np.convolve(motor_total_vibration, np.ones(10)/10, mode='same')
return smoothed_motor_total_vibration
# The goal is to find zone outside of peaks (flat low energy zones) to advise them as good speeds range to use in the slicer
def identify_low_energy_zones(power_total):
valleys = []
# Calculate the mean and standard deviation of the entire power_total
mean_energy = np.mean(power_total)
std_energy = np.std(power_total)
# Define a threshold value as mean minus a certain number of standard deviations
threshold_value = mean_energy - VALLEY_DETECTION_THRESHOLD * std_energy
# Find valleys in power_total based on the threshold
in_valley = False
start_idx = 0
for i, value in enumerate(power_total):
if not in_valley and value < threshold_value:
in_valley = True
start_idx = i
elif in_valley and value >= threshold_value:
in_valley = False
valleys.append((start_idx, i))
# If the last point is still in a valley, close the valley
if in_valley:
valleys.append((start_idx, len(power_total) - 1))
max_signal = np.max(power_total)
# Calculate mean energy for each valley as a percentage of the maximum of the signal
valley_means_percentage = []
for start, end in valleys:
if not np.isnan(np.mean(power_total[start:end])):
valley_means_percentage.append((start, end, (np.mean(power_total[start:end]) / max_signal) * 100))
# Sort valleys based on mean percentage values
sorted_valleys = sorted(valley_means_percentage, key=lambda x: x[2])
return sorted_valleys
# Resample the signal to achieve denser data points in order to get more precise valley placing and
# avoid having to use the original sampling of the signal (that is equal to the speed increment used for the test)
def resample_signal(speeds, power_total, new_spacing=0.1):
new_speeds = np.arange(speeds[0], speeds[-1] + new_spacing, new_spacing)
new_power_total = np.interp(new_speeds, speeds, power_total)
return np.array(new_speeds), np.array(new_power_total)
######################################################################
# Graphing
######################################################################
def plot_speed_profile(ax, speeds, power_total, num_peaks, peaks, low_energy_zones):
# For this function, we have two array for the speeds. Indeed, since the power total sum was resampled to better detect
# the valleys of low energy later on, we also need the resampled speed array to plot it. For the rest
ax.set_title("Machine speed profile", fontsize=14, color=KLIPPAIN_COLORS['dark_orange'], weight='bold')
ax.set_xlabel('Speed (mm/s)')
ax.set_ylabel('Energy')
ax2 = ax.twinx()
ax2.yaxis.set_visible(False)
max_y = power_total[0].max() + power_total[0].max() * 0.05
ax.set_xlim([speeds.min(), speeds.max()])
ax.set_ylim([0, max_y])
ax2.set_ylim([0, max_y])
ax.plot(speeds, power_total[0], label="X+Y+Z", color='purple', zorder=5)
ax.plot(speeds, power_total[1], label="X", color='red')
ax.plot(speeds, power_total[2], label="Y", color='green')
ax.plot(speeds, power_total[3], label="Z", color='blue')
if peaks.size:
ax.plot(speeds[peaks], power_total[0][peaks], "x", color='black', markersize=8)
for idx, peak in enumerate(peaks):
fontcolor = 'red'
fontweight = 'bold'
ax.annotate(f"{idx+1}", (speeds[peak], power_total[0][peak]),
textcoords="offset points", xytext=(8, 5),
ha='left', fontsize=13, color=fontcolor, weight=fontweight)
ax2.plot([], [], ' ', label=f'Number of peaks: {num_peaks}')
else:
ax2.plot([], [], ' ', label=f'No peaks detected')
for idx, (start, end, energy) in enumerate(low_energy_zones):
ax.axvline(speeds[start], color='red', linestyle='dotted', linewidth=1.5)
ax.axvline(speeds[end], color='red', linestyle='dotted', linewidth=1.5)
ax2.fill_between(speeds[start:end], 0, power_total[0][start:end], color='green', alpha=0.2, label=f'Zone {idx+1}: {speeds[start]:.1f} to {speeds[end]:.1f} mm/s (mean energy: {energy:.2f}%)')
ax.xaxis.set_minor_locator(matplotlib.ticker.AutoMinorLocator())
ax.yaxis.set_minor_locator(matplotlib.ticker.AutoMinorLocator())
ax.grid(which='major', color='grey')
ax.grid(which='minor', color='lightgrey')
fontP = matplotlib.font_manager.FontProperties()
fontP.set_size('small')
ax.legend(loc='upper left', prop=fontP)
ax2.legend(loc='upper right', prop=fontP)
return
def plot_vibration_spectrogram(ax, speeds, freqs, power_spectral_densities, peaks, fr, max_freq):
# Prepare the spectrum data
spectrum = np.empty([len(freqs), len(speeds)])
for i in range(len(speeds)):
for j in range(len(freqs)):
spectrum[j, i] = power_spectral_densities[i][0][j]
ax.set_title("Vibrations spectrogram", fontsize=14, color=KLIPPAIN_COLORS['dark_orange'], weight='bold')
# ax.pcolormesh(speeds, freqs, spectrum, norm=matplotlib.colors.LogNorm(),
# cmap='inferno', shading='gouraud')
ax.imshow(spectrum, norm=matplotlib.colors.LogNorm(), cmap='inferno',
aspect='auto', extent=[speeds[0], speeds[-1], freqs[0], freqs[-1]],
origin='lower', interpolation='antialiased')
# Add peaks lines in the spectrogram to get hint from peaks found in the first graph
if peaks is not None:
for idx, peak in enumerate(peaks):
ax.axvline(peak, color='cyan', linestyle='dotted', linewidth=0.75)
ax.annotate(f"Peak {idx+1}", (peak, freqs[-1]*0.9),
textcoords="data", color='cyan', rotation=90, fontsize=10,
verticalalignment='top', horizontalalignment='right')
# Add motor resonance line
if fr is not None and fr > 25:
ax.axhline(fr, color='cyan', linestyle='dotted', linewidth=1)
ax.annotate(f"Motor resonance", (speeds[-1]*0.95, fr+2),
textcoords="data", color='cyan', fontsize=10,
verticalalignment='bottom', horizontalalignment='right')
ax.set_ylim([0., max_freq])
ax.set_ylabel('Frequency (hz)')
ax.set_xlabel('Speed (mm/s)')
return
def plot_motor_profile(ax, freqs, motor_vibration_power, motor_fr, motor_zeta, motor_max_power_index):
ax.set_title("Motors frequency profile", fontsize=14, color=KLIPPAIN_COLORS['dark_orange'], weight='bold')
ax.set_xlabel('Energy')
ax.set_ylabel('Frequency (hz)')
ax2 = ax.twinx()
ax2.yaxis.set_visible(False)
ax.set_ylim([freqs.min(), freqs.max()])
ax.set_xlim([0, motor_vibration_power.max() + motor_vibration_power.max() * 0.1])
# Plot the profile curve
ax.plot(motor_vibration_power, freqs, color=KLIPPAIN_COLORS['orange'])
# Tag the resonance peak
ax.plot(motor_vibration_power[motor_max_power_index], freqs[motor_max_power_index], "x", color='black', markersize=8)
fontcolor = KLIPPAIN_COLORS['purple']
fontweight = 'bold'
ax.annotate(f"R", (motor_vibration_power[motor_max_power_index], freqs[motor_max_power_index]),
textcoords="offset points", xytext=(8, 8),
ha='right', fontsize=13, color=fontcolor, weight=fontweight)
# Add the legend
ax2.plot([], [], ' ', label="Motor resonant frequency (ω0): %.1fHz" % (motor_fr))
ax2.plot([], [], ' ', label="Motor damping ratio (ζ): %.3f" % (motor_zeta))
ax.xaxis.set_minor_locator(matplotlib.ticker.AutoMinorLocator())
ax.yaxis.set_minor_locator(matplotlib.ticker.AutoMinorLocator())
ax.grid(which='major', color='grey')
ax.grid(which='minor', color='lightgrey')
fontP = matplotlib.font_manager.FontProperties()
fontP.set_size('small')
ax2.legend(loc='upper right', prop=fontP)
return
######################################################################
# Startup and main routines
######################################################################
def extract_speed(logname):
try:
speed = re.search('sp(.+?)n', os.path.basename(logname)).group(1).replace('_','.')
except AttributeError:
raise ValueError("File %s does not contain speed in its name and therefore "
"is not supported by this script." % (logname,))
return float(speed)
def sort_and_slice(raw_speeds, raw_datas, remove):
# Sort to get the speeds and their datas aligned and in ascending order
raw_speeds, raw_datas = zip(*sorted(zip(raw_speeds, raw_datas), key=operator.itemgetter(0)))
# Optionally remove the beginning and end of each data file to get only
# the constant speed part of the segments and remove the start/stop phase
sliced_datas = []
for data in raw_datas:
sliced = round((len(data) * remove / 100) / 2)
sliced_datas.append(data[sliced:len(data)-sliced])
return raw_speeds, sliced_datas
def vibrations_calibration(lognames, klipperdir="~/klipper", axisname=None, accel=None, max_freq=1000., remove=0):
set_locale()
global shaper_calibrate
shaper_calibrate = setup_klipper_import(klipperdir)
# Parse the raw data and get them ready for analysis
raw_datas = [parse_log(filename) for filename in lognames]
raw_speeds = [extract_speed(filename) for filename in lognames]
speeds, datas = sort_and_slice(raw_speeds, raw_datas, remove)
del raw_datas, raw_speeds
# As we assume that we have the same number of file for each speed increment, we can group
# the PSD results by this number (to combine all the segments of the pattern at a constant speed)
group_by = speeds.count(speeds[0])
# Remove speeds duplicates and graph the processed datas
speeds = list(OrderedDict((x, True) for x in speeds).keys())
# Compute speed profile, vibration spectrogram and motor resonance profile
freqs, psd = compute_vibration_spectrogram(datas, group_by, max_freq)
upsampled_speeds, speeds_powers = compute_speed_profile(speeds, freqs, psd)
motor_vibration_power = compute_motor_profile(psd)
# Peak detection and low energy valleys (good speeds) identification between the peaks
num_peaks, vibration_peaks, peaks_speeds = detect_peaks(
speeds_powers[0], upsampled_speeds,
PEAKS_DETECTION_THRESHOLD * speeds_powers[0].max(),
PEAKS_RELATIVE_HEIGHT_THRESHOLD, 10, 10
)
low_energy_zones = identify_low_energy_zones(speeds_powers[0])
# Print the vibration peaks info in the console
formated_peaks_speeds = ["{:.1f}".format(pspeed) for pspeed in peaks_speeds]
print_with_c_locale("Vibrations peaks detected: %d @ %s mm/s (avoid setting a speed near these values in your slicer print profile)" % (num_peaks, ", ".join(map(str, formated_peaks_speeds))))
# Motor resonance estimation
motor_fr, motor_zeta, motor_max_power_index = compute_mechanical_parameters(motor_vibration_power, freqs)
if motor_fr > 25:
print_with_c_locale("Motors have a main resonant frequency at %.1fHz with an estimated damping ratio of %.3f" % (motor_fr, motor_zeta))
else:
print_with_c_locale("The detected resonance frequency of the motors is too low (%.1fHz). This is probably due to the test run with too high acceleration!" % motor_fr)
print_with_c_locale("Try lowering the ACCEL value before restarting the macro to ensure that only constant speeds are recorded and that the dynamic behavior in the corners is not impacting the measurements.")
# Create graph layout
fig, ((ax1, ax2), (ax3, ax4)) = plt.subplots(2, 2, gridspec_kw={
'height_ratios':[4, 3],
'width_ratios':[5, 3],
'bottom':0.050,
'top':0.890,
'left':0.057,
'right':0.985,
'hspace':0.166,
'wspace':0.138
})
ax2.remove() # top right graph is not used and left blank for now...
fig.set_size_inches(14, 11.6)
# Add title
title_line1 = "VIBRATIONS MEASUREMENT TOOL"
fig.text(0.075, 0.965, title_line1, ha='left', va='bottom', fontsize=20, color=KLIPPAIN_COLORS['purple'], weight='bold')
try:
filename_parts = (lognames[0].split('/')[-1]).split('_')
dt = datetime.strptime(f"{filename_parts[1]} {filename_parts[2].split('-')[0]}", "%Y%m%d %H%M%S")
title_line2 = dt.strftime('%x %X')
if axisname is not None:
title_line2 += ' -- ' + str(axisname).upper() + ' axis'
if accel is not None:
title_line2 += ' at ' + str(accel) + ' mm/s²'
except:
print_with_c_locale("Warning: CSV filename look to be different than expected (%s)" % (lognames[0]))
title_line2 = lognames[0].split('/')[-1]
fig.text(0.075, 0.957, title_line2, ha='left', va='top', fontsize=16, color=KLIPPAIN_COLORS['dark_purple'])
# Plot the graphs
plot_speed_profile(ax1, upsampled_speeds, speeds_powers, num_peaks, vibration_peaks, low_energy_zones)
plot_motor_profile(ax4, freqs, motor_vibration_power, motor_fr, motor_zeta, motor_max_power_index)
plot_vibration_spectrogram(ax3, speeds, freqs, psd, peaks_speeds, motor_fr, max_freq)
# Adding a small Klippain logo to the top left corner of the figure
ax_logo = fig.add_axes([0.001, 0.924, 0.075, 0.075], anchor='NW')
ax_logo.imshow(plt.imread(os.path.join(os.path.dirname(os.path.abspath(__file__)), 'klippain.png')))
ax_logo.axis('off')
# Adding Shake&Tune version in the top right corner
st_version = get_git_version()
if st_version is not None:
fig.text(0.995, 0.985, st_version, ha='right', va='bottom', fontsize=8, color=KLIPPAIN_COLORS['purple'])
return fig
def main():
# Parse command-line arguments
usage = "%prog [options] <raw logs>"
opts = optparse.OptionParser(usage)
opts.add_option("-o", "--output", type="string", dest="output",
default=None, help="filename of output graph")
opts.add_option("-a", "--axis", type="string", dest="axisname",
default=None, help="axis name to be printed on the graph")
opts.add_option("-c", "--accel", type="int", dest="accel",
default=None, help="accel value to be printed on the graph")
opts.add_option("-f", "--max_freq", type="float", default=1000.,
help="maximum frequency to graph")
opts.add_option("-r", "--remove", type="int", default=0,
help="percentage of data removed at start/end of each CSV files")
opts.add_option("-k", "--klipper_dir", type="string", dest="klipperdir",
default="~/klipper", help="main klipper directory")
options, args = opts.parse_args()
if len(args) < 1:
opts.error("No CSV file(s) to analyse")
if options.output is None:
opts.error("You must specify an output file.png to use the script (option -o)")
if options.remove > 50 or options.remove < 0:
opts.error("You must specify a correct percentage (option -r) in the 0-50 range")
fig = vibrations_calibration(args, options.klipperdir, options.axisname, options.accel, options.max_freq, options.remove)
fig.savefig(options.output, dpi=150)
if __name__ == '__main__':
main()

View File

@@ -1,299 +0,0 @@
#!/usr/bin/env python3
############################################
###### INPUT SHAPER KLIPPAIN WORKFLOW ######
############################################
# Written by Frix_x#0161 #
# This script is designed to be used with gcode_shell_commands directly from Klipper
# Use the provided Shake&Tune macros instead!
import optparse
import os
import time
import glob
import sys
import shutil
import tarfile
from datetime import datetime
#################################################################################################################
RESULTS_FOLDER = os.path.expanduser('~/printer_data/config/K-ShakeTune_results')
KLIPPER_FOLDER = os.path.expanduser('~/klipper')
#################################################################################################################
from graph_belts import belts_calibration
from graph_shaper import shaper_calibration
from graph_vibrations import vibrations_calibration
from analyze_axesmap import axesmap_calibration
RESULTS_SUBFOLDERS = ['belts', 'inputshaper', 'vibrations']
def is_file_open(filepath):
for proc in os.listdir('/proc'):
if proc.isdigit():
for fd in glob.glob(f'/proc/{proc}/fd/*'):
try:
if os.path.samefile(fd, filepath):
return True
except FileNotFoundError:
# Klipper has already released the CSV file
pass
except PermissionError:
# Unable to check for this particular process due to permissions
pass
return False
def create_belts_graph(keep_csv):
current_date = datetime.now().strftime('%Y%m%d_%H%M%S')
lognames = []
globbed_files = glob.glob('/tmp/raw_data_axis*.csv')
if not globbed_files:
print("No CSV files found in the /tmp folder to create the belt graphs!")
sys.exit(1)
if len(globbed_files) < 2:
print("Not enough CSV files found in the /tmp folder. Two files are required for the belt graphs!")
sys.exit(1)
sorted_files = sorted(globbed_files, key=os.path.getmtime, reverse=True)
for filename in sorted_files[:2]:
# Wait for the file handler to be released by Klipper
while is_file_open(filename):
time.sleep(2)
# Extract the tested belt from the filename and rename/move the CSV file to the result folder
belt = os.path.basename(filename).split('_')[3].split('.')[0].upper()
new_file = os.path.join(RESULTS_FOLDER, RESULTS_SUBFOLDERS[0], f'belt_{current_date}_{belt}.csv')
shutil.move(filename, new_file)
os.sync() # Sync filesystem to avoid problems
# Save the file path for later
lognames.append(new_file)
# Wait for the file handler to be released by the move command
while is_file_open(new_file):
time.sleep(2)
# Generate the belts graph and its name
fig = belts_calibration(lognames, KLIPPER_FOLDER)
png_filename = os.path.join(RESULTS_FOLDER, RESULTS_SUBFOLDERS[0], f'belts_{current_date}.png')
fig.savefig(png_filename, dpi=150)
# Remove the CSV files if the user don't want to keep them
if not keep_csv:
for csv in lognames:
if os.path.exists(csv):
os.remove(csv)
return
def create_shaper_graph(keep_csv):
current_date = datetime.now().strftime('%Y%m%d_%H%M%S')
# Get all the files and sort them based on last modified time to select the most recent one
globbed_files = glob.glob('/tmp/raw_data*.csv')
if not globbed_files:
print("No CSV files found in the /tmp folder to create the input shaper graphs!")
sys.exit(1)
sorted_files = sorted(globbed_files, key=os.path.getmtime, reverse=True)
filename = sorted_files[0]
# Wait for the file handler to be released by Klipper
while is_file_open(filename):
time.sleep(2)
# Extract the tested axis from the filename and rename/move the CSV file to the result folder
axis = os.path.basename(filename).split('_')[3].split('.')[0].upper()
new_file = os.path.join(RESULTS_FOLDER, RESULTS_SUBFOLDERS[1], f'resonances_{current_date}_{axis}.csv')
shutil.move(filename, new_file)
os.sync() # Sync filesystem to avoid problems
# Wait for the file handler to be released by the move command
while is_file_open(new_file):
time.sleep(2)
# Generate the shaper graph and its name
fig = shaper_calibration([new_file], KLIPPER_FOLDER)
png_filename = os.path.join(RESULTS_FOLDER, RESULTS_SUBFOLDERS[1], f'resonances_{current_date}_{axis}.png')
fig.savefig(png_filename, dpi=150)
# Remove the CSV file if the user don't want to keep it
if not keep_csv:
if os.path.exists(new_file):
os.remove(new_file)
return axis
def create_vibrations_graph(axis_name, accel, chip_name, keep_csv):
current_date = datetime.now().strftime('%Y%m%d_%H%M%S')
lognames = []
globbed_files = glob.glob(f'/tmp/{chip_name}-*.csv')
if not globbed_files:
print("No CSV files found in the /tmp folder to create the vibration graphs!")
sys.exit(1)
if len(globbed_files) < 3:
print("Not enough CSV files found in the /tmp folder. At least 3 files are required for the vibration graphs!")
sys.exit(1)
for filename in globbed_files:
# Wait for the file handler to be released by Klipper
while is_file_open(filename):
time.sleep(2)
# Cleanup of the filename and moving it in the result folder
cleanfilename = os.path.basename(filename).replace(chip_name, f'vibr_{current_date}')
new_file = os.path.join(RESULTS_FOLDER, RESULTS_SUBFOLDERS[2], cleanfilename)
shutil.move(filename, new_file)
# Save the file path for later
lognames.append(new_file)
# Sync filesystem to avoid problems as there is a lot of file copied
os.sync()
time.sleep(5)
# Generate the vibration graph and its name
fig = vibrations_calibration(lognames, KLIPPER_FOLDER, axis_name, accel)
png_filename = os.path.join(RESULTS_FOLDER, RESULTS_SUBFOLDERS[2], f'vibrations_{current_date}_{axis_name}.png')
fig.savefig(png_filename, dpi=150)
# Archive all the csv files in a tarball in case the user want to keep them
if keep_csv:
with tarfile.open(os.path.join(RESULTS_FOLDER, RESULTS_SUBFOLDERS[2], f'vibrations_{current_date}_{axis_name}.tar.gz'), 'w:gz') as tar:
for csv_file in lognames:
tar.add(csv_file, recursive=False)
# Remove the remaining CSV files not needed anymore (tarball is safe if it was created)
for csv_file in lognames:
if os.path.exists(csv_file):
os.remove(csv_file)
return
def find_axesmap(accel, chip_name):
current_date = datetime.now().strftime('%Y%m%d_%H%M%S')
result_filename = os.path.join(RESULTS_FOLDER, f'axes_map_{current_date}.txt')
lognames = []
globbed_files = glob.glob(f'/tmp/{chip_name}-*.csv')
if not globbed_files:
print("No CSV files found in the /tmp folder to analyze and find the axes_map!")
sys.exit(1)
sorted_files = sorted(globbed_files, key=os.path.getmtime, reverse=True)
filename = sorted_files[0]
# Wait for the file handler to be released by Klipper
while is_file_open(filename):
time.sleep(2)
# Analyze the CSV to find the axes_map parameter
lognames.append(filename)
results = axesmap_calibration(lognames, accel)
with open(result_filename, 'w') as f:
f.write(results)
return
# Utility function to get old files based on their modification time
def get_old_files(folder, extension, limit):
files = [os.path.join(folder, f) for f in os.listdir(folder) if f.endswith(extension)]
files.sort(key=lambda x: os.path.getmtime(x), reverse=True)
return files[limit:]
def clean_files(keep_results):
# Define limits based on STORE_RESULTS
keep1 = keep_results + 1
keep2 = 2 * keep_results + 1
# Find old files in each directory
old_belts_files = get_old_files(os.path.join(RESULTS_FOLDER, RESULTS_SUBFOLDERS[0]), '.png', keep1)
old_inputshaper_files = get_old_files(os.path.join(RESULTS_FOLDER, RESULTS_SUBFOLDERS[1]), '.png', keep2)
old_vibrations_files = get_old_files(os.path.join(RESULTS_FOLDER, RESULTS_SUBFOLDERS[2]), '.png', keep1)
# Remove the old belt files
for old_file in old_belts_files:
file_date = "_".join(os.path.splitext(os.path.basename(old_file))[0].split('_')[1:3])
for suffix in ['A', 'B']:
csv_file = os.path.join(RESULTS_FOLDER, RESULTS_SUBFOLDERS[0], f'belt_{file_date}_{suffix}.csv')
if os.path.exists(csv_file):
os.remove(csv_file)
os.remove(old_file)
# Remove the old shaper files
for old_file in old_inputshaper_files:
csv_file = os.path.join(RESULTS_FOLDER, RESULTS_SUBFOLDERS[1], os.path.splitext(os.path.basename(old_file))[0] + ".csv")
if os.path.exists(csv_file):
os.remove(csv_file)
os.remove(old_file)
# Remove the old vibrations files
for old_file in old_vibrations_files:
os.remove(old_file)
tar_file = os.path.join(RESULTS_FOLDER, RESULTS_SUBFOLDERS[2], os.path.splitext(os.path.basename(old_file))[0] + ".tar.gz")
if os.path.exists(tar_file):
os.remove(tar_file)
def main():
# Parse command-line arguments
usage = "%prog [options] <logs>"
opts = optparse.OptionParser(usage)
opts.add_option("-t", "--type", type="string", dest="type",
default=None, help="type of output graph to produce")
opts.add_option("--accel", type="int", default=None, dest="accel_used",
help="acceleration used during the vibration macro or axesmap macro")
opts.add_option("--axis_name", type="string", default=None, dest="axis_name",
help="axis tested during the vibration macro")
opts.add_option("--chip_name", type="string", default="adxl345", dest="chip_name",
help="accelerometer chip name in klipper used during the vibration macro or the axesmap macro")
opts.add_option("-n", "--keep_results", type="int", default=3, dest="keep_results",
help="number of results to keep in the result folder after each run of the script")
opts.add_option("-c", "--keep_csv", action="store_true", default=False, dest="keep_csv",
help="weither or not to keep the CSV files alongside the PNG graphs image results")
options, args = opts.parse_args()
if options.type is None:
opts.error("You must specify the type of output graph you want to produce (option -t)")
elif options.type.lower() is None or options.type.lower() not in ['belts', 'shaper', 'vibrations', 'axesmap', 'clean']:
opts.error("Type of output graph need to be in the list of 'belts', 'shaper', 'vibrations', 'axesmap' or 'clean'")
else:
graph_mode = options.type
# Check if results folders are there or create them before doing anything else
for result_subfolder in RESULTS_SUBFOLDERS:
folder = os.path.join(RESULTS_FOLDER, result_subfolder)
if not os.path.exists(folder):
os.makedirs(folder)
if graph_mode.lower() == 'belts':
create_belts_graph(keep_csv=options.keep_csv)
print(f"Belt graph created. You will find the results in {RESULTS_FOLDER}/{RESULTS_SUBFOLDERS[0]}")
elif graph_mode.lower() == 'shaper':
axis = create_shaper_graph(keep_csv=options.keep_csv)
print(f"{axis} input shaper graph created. You will find the results in {RESULTS_FOLDER}/{RESULTS_SUBFOLDERS[1]}")
elif graph_mode.lower() == 'vibrations':
create_vibrations_graph(axis_name=options.axis_name, accel=options.accel_used, chip_name=options.chip_name, keep_csv=options.keep_csv)
print(f"{options.axis_name} vibration graph created. You will find the results in {RESULTS_FOLDER}/{RESULTS_SUBFOLDERS[2]}")
elif graph_mode.lower() == 'axesmap':
print(f"WARNING: AXES_MAP_CALIBRATION is currently very experimental and may produce incorrect results... Please validate the output!")
find_axesmap(accel=options.accel_used, chip_name=options.chip_name)
elif graph_mode.lower() == 'clean':
print(f"Cleaning output folder to keep only the last {options.keep_results} results...")
clean_files(keep_results=options.keep_results)
if __name__ == '__main__':
main()

View File

@@ -1,5 +0,0 @@
#!/usr/bin/env bash
source ~/klippain_shaketune-env/bin/activate
python ~/klippain_shaketune/K-ShakeTune/scripts/is_workflow.py "$@"
deactivate

10
K-ShakeTune/shaketune.sh Executable file
View File

@@ -0,0 +1,10 @@
#!/usr/bin/env bash
# This script is used to run the Shake&Tune Python scripts as a module
# from the project root directory using its virtual environment
# Usage: ./shaketune.sh <args>
source ~/klippain_shaketune-env/bin/activate
cd ~/klippain_shaketune
python -m src.is_workflow "$@"
deactivate

View File

@@ -1,5 +1,5 @@
[gcode_shell_command shaketune]
command: ~/printer_data/config/K-ShakeTune/scripts/shaketune.sh
command: ~/printer_data/config/K-ShakeTune/shaketune.sh
timeout: 600.0
verbose: True

View File

@@ -1,6 +1,6 @@
# Klippain Shake&Tune Module
# Klipper Shake&Tune Module
This Klippain "Shake&Tune" repository is a standalone module from the [Klippain](https://github.com/Frix-x/klippain) ecosystem, designed to automate and calibrate the input shaper system on your Klipper 3D printer with a streamlined workflow and insightful vizualisations.
This "Shake&Tune" repository is a standalone module from the [Klippain](https://github.com/Frix-x/klippain) ecosystem, designed to automate and calibrate the input shaper system on your Klipper 3D printer with a streamlined workflow and insightful vizualisations. This can be installed on any Klipper machine. It is not limited to those using Klippain.
![logo banner](./docs/banner.png)
@@ -13,14 +13,18 @@ It operates in two steps:
Check out the **[detailed documentation of the Shake&Tune module here](./docs/README.md)**. You can also look at the documentation for each type of graph by directly clicking on them below to better understand your results and tune your machine!
| [Belts graph](./docs/macros/belts_tuning.md) | [Axis input shaper graphs](./docs/macros/axis_tuning.md) | [Vibrations graph](./docs/macros/vibrations_tuning.md) |
| [Belts graph](./docs/macros/belts_tuning.md) | [Axis input shaper graphs](./docs/macros/axis_tuning.md) | [Vibrations graph](./docs/macros/vibrations_profile.md) |
|:----------------:|:------------:|:---------------------:|
| [<img src="./docs/images/belts_example.png">](./docs/macros/belts_tuning.md) | [<img src="./docs/images/axis_example.png">](./docs/macros/axis_tuning.md) | [<img src="./docs/images/vibrations_example.png">](./docs/macros/vibrations_tuning.md) |
| [<img src="./docs/images/belts_example.png">](./docs/macros/belts_tuning.md) | [<img src="./docs/images/axis_example.png">](./docs/macros/axis_tuning.md) | [<img src="./docs/images/vibrations_example.png">](./docs/macros/vibrations_profile.md) |
> **Note**:
>
> Be aware that Shake&Tune uses the [Gcode shell command plugin](https://github.com/dw-0/kiauh/blob/master/docs/gcode_shell_command.md) under the hood to call the Python scripts that generate the graphs. While my scripts should be safe, the Gcode shell command plugin also has great potential for abuse if not used carefully for other purposes, since it opens shell access from Klipper.
## Installation
Follow these steps to install the Shake&Tune module in your printer:
1. Be sure to have a working accelerometer on your machine. You can follow the official [Measuring Resonances Klipper documentation](https://www.klipper3d.org/Measuring_Resonances.html) to configure one. Validate with an `ACCELEROMETER_QUERY` command that everything works correctly.
1. Be sure to have a working accelerometer on your machine and a `[resonance_tester]` section defined. You can follow the official [Measuring Resonances Klipper documentation](https://www.klipper3d.org/Measuring_Resonances.html) to configure it.
1. Install the Shake&Tune package by running over SSH on your printer:
```bash
wget -O - https://raw.githubusercontent.com/Frix-x/klippain-shaketune/main/install.sh | bash
@@ -29,26 +33,14 @@ Follow these steps to install the Shake&Tune module in your printer:
```
[include K-ShakeTune/*.cfg]
```
1. Finally, if you want to get automatic updates, add the following to your `moonraker.cfg` file:
```
[update_manager Klippain-ShakeTune]
type: git_repo
path: ~/klippain_shaketune
channel: beta
origin: https://github.com/Frix-x/klippain-shaketune.git
primary_branch: main
managed_services: klipper
install_script: install.sh
```
## Usage
Ensure your machine is homed, then invoke one of the following macros as needed:
- `AXES_MAP_CALIBRATION` to automatically find Klipper's `axes_map` parameter for your accelerometer orientation (be careful, this is experimental for now).
- `BELTS_SHAPER_CALIBRATION` for belt resonance graphs, useful for verifying belt tension and differential belt paths behavior.
- `AXES_SHAPER_CALIBRATION` for input shaper graphs to mitigate ringing/ghosting by tuning Klipper's input shaper system.
- `VIBRATIONS_CALIBRATION` for machine and motors vibration graphs, used to optimize your slicer speed profiles and TMC drivers parameters.
- `EXCITATE_AXIS_AT_FREQ` to sustain a specific excitation frequency, useful to let you inspect and find out what is resonating.
- `AXES_MAP_CALIBRATION` to automatically find Klipper's `axes_map` parameter for your accelerometer orientation (be careful, this is experimental for now and known to give bad results).
- `COMPARE_BELTS_RESPONSES` for a differential belt resonance graph, useful for checking relative belt tensions and belt path behaviors on a CoreXY printer.
- `AXES_SHAPER_CALIBRATION` for standard input shaper graphs, used to mitigate ringing/ghosting by tuning Klipper's input shaper filters.
- `CREATE_VIBRATIONS_PROFILE` for vibrations graphs as a function of toolhead direction and speed, used to find problematic ranges where the printer could be exposed to more VFAs and optimize your slicer speed profiles and TMC driver parameters.
- `EXCITATE_AXIS_AT_FREQ` to maintain a specific excitation frequency, useful to inspect and find out what is resonating.
For further insights on the usage of these macros and the generated graphs, refer to the [K-Shake&Tune module documentation](./docs/README.md).

View File

@@ -8,14 +8,14 @@ First, check out the **[input shaping and tuning generalities](./is_tuning_gener
Then look at the documentation for each type of graph by clicking on them below tu run the tests and better understand your results to tune your machine!
| [Belts graph](./macros/belts_tuning.md) | [Axis input shaper graphs](./macros/axis_tuning.md) | [Vibrations graph](./macros/vibrations_tuning.md) |
| [Belt response comparison](./macros/belts_tuning.md) | [Axis input shaper graphs](./macros/axis_tuning.md) | [Vibrations profile](./macros/vibrations_profile.md) |
|:----------------:|:------------:|:---------------------:|
| [<img src="./images/belts_example.png">](./macros/belts_tuning.md) | [<img src="./images/axis_example.png">](./macros/axis_tuning.md) | [<img src="./images/vibrations_example.png">](./macros/vibrations_tuning.md) |
| [<img src="./images/belts_example.png">](./macros/belts_tuning.md) | [<img src="./images/axis_example.png">](./macros/axis_tuning.md) | [<img src="./images/vibrations_example.png">](./macros/vibrations_profile.md) |
## Additional macros
### AXES_MAP_CALIBRATION
### AXES_MAP_CALIBRATION (experimental)
All graphs generated by this package show plots based on accelerometer measurements, typically labeled with the X, Y, and Z axes. It's important to note that if the accelerometer is rotated, its axes may not align correctly with the machine axes, making the plots more difficult to interpret, analyze, and understand. The `AXES_MAP_CALIBRATION` is designed to automatically measure the alignement of the accelerometer in order to set it correctly.

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@@ -22,16 +22,20 @@ When tuning Input Shaper, keep the following in mind:
1. Finally, remember why you're running these tests: to get clean prints. Don't become too obsessive over perfect graphs, as the last bits of optimization will probably have the least impact on the printed parts in terms of ringing and ghosting.
### Special note on accelerometer mounting point
Input Shaping algorithms work by suppressing a single resonant frequency (or a range around a single resonant frequency). When setting the filter, **the primary goal is to target the resonant frequency of the toolhead and belts system** (see the [theory behind it](#theory-behind-it)), as this has the most significant impact on print quality and is the root cause of ringing.
### Note on accelerometer mounting point
Input Shaping algorithms are designed to mitigate resonances by targeting a specific resonant frequency or a range around it. When setting the filter, **the primary goal is to target the resonant frequency of the toolhead and belts system** (see the [theory behind it](#theory-behind-it)), as this has the most significant impact on print quality and is the root cause of ringing.
When setting up Input Shaper, it is important to consider the accelerometer mounting point. There are mainly two possibilities, each with its pros and cons:
Choosing the accelerometer's mounting point is important. There are currently three mounting strategies, each offering distinct advantages:
| Directly at the nozzle tip | Near the toolhead's center of gravity |
| --- | --- |
| This method provides a more accurate and comprehensive measurement of everything in your machine. It captures the main resonant frequency along with other vibrations and movements, such as toolhead wobbling and printer frame movements. This approach is excellent for diagnosing your machine's kinematics and troubleshooting problems. However, it also leads to noisier graphs, making it harder for the algorithm to select the correct filter for input shaping. Graphs may appear worse, but this is due to the different "point of view" of the printer's behavior. | I personally recommend mounting the accelerometer in this way, as it provides a clear view of the main resonant frequency you want to target, allowing for accurate input shaper filter settings. This approach results in cleaner graphs with less visible noise from other subsystem vibrations, making interpretation easier for both automatic algorithms and users. However, this method provides less detail in the graphs and may be slightly less effective for troubleshooting printer problems. |
| Mounting Point | Advantages | Considerations |
| --- | --- | --- |
| **Directly at the nozzle tip** | Provides a comprehensive view of all machine vibrations, including the main resonance, but also toolhead wobbling and global frame movements. Ideal for diagnosing kinematic issues and troubleshooting. | Results in noisier data, which may complicate the final Input Shaping filter selection on machines that are not perfect and/or not fully rigid. |
| **Near the toolhead's center of gravity** | Provides a view of mostly only the primary resonant frequencies of the toolhead and belts, allowing precise filter selection for Input Shaping. The data is often cleaner, with only severe mechanical issues or very problematic toolhead wobble visible on the graphs. | May provide less detail on secondary vibrations (which have a fairly minor effect on ringing) and may be less effective in diagnosing unrelated mechanical problems. |
| **Integrated accelerometer on a CANBus Board** | Simple and effective, requires no additional installation and always available. Can help for diagnosing issues like those caused by bowden tubes, umbillical coords and cable chains. If toolhead is very rigid, measurements are close enough to those of the center of gravity. | Not accurate for a detailed analysis or diagnosing mechanical issues due to distance from the nozzle tip and potential noise from attached components. |
A suggested workflow is to first use the nozzle mount to diagnose mechanical issues, such as loose screws or a bad X carriage. Once the mechanics are in good condition, switch to a mounting point closer to the toolhead's center of gravity for setting the input shaper filter settings by using cleaner graphs that highlights the most impactful frequency.
While you should usually try to focus on the toolhead/belts mechanical subsystem for resonance mitigation (since it has the most impact on ringing and print quality), you don't want to overlook the importance of nozzle tip measurements for other sources of vibration. Indeed, if resonance analysis results vary a lot between mounting points, reinforcing the toolhead's rigidity to minimize wobbling and vibrations is recommended. Here is a strategy that attempts to methodically address mechanical issues and then allow for the day-to-day selection of input shaping filters as needed:
1. **Diagnosis phase**: Begin with the nozzle tip mount to identify and troubleshoot mechanical issues to ensure the printer components are healthy and the assembly is well done and optimized.
1. **Filter selection phase**: If the graphs are mostly clean, you can transition to a mounting point near the toolhead's center of gravity for cleaner data on the main resonance, facilitating accurate Input Shaping filter settings. You can also consider the CANBus integrated accelerometer for its simplicity, especially if the toolhead is particularly rigid and minimally affected by wobble.
## Theory behind it

View File

@@ -15,8 +15,10 @@ Then, call the `AXES_SHAPER_CALIBRATION` macro and look for the graphs in the re
|FREQ_END|133|Maximum excitation frequency|
|HZ_PER_SEC|1|Number of Hz per seconds for the test|
|AXIS|"all"|Axis you want to test in the list of "all", "X" or "Y"|
|SCV|printer square corner velocity|Square corner velocity you want to use to calculate shaper recommendations. Using higher SCV values usually results in more smoothing and lower maximum accelerations|
|MAX_SMOOTHING|None|Max smoothing allowed when calculating shaper recommendations|
|KEEP_N_RESULTS|3|Total number of results to keep in the result folder after running the test. The older results are automatically cleaned up|
|KEEP_CSV|True|Weither or not to keep the CSV data file alonside the PNG graphs|
|KEEP_CSV|0|Weither or not to keep the CSV data file alonside the PNG graphs|
## Graphs description
@@ -39,13 +41,13 @@ For setting your Input Shaping filters, rely on the auto-computed values display
* `MZV` is usually the top pick for well-adjusted machines. It's a good compromise for low remaining vibrations while still allowing pretty good acceleration values. Keep in mind, `MZV` is only recommended by Klipper on good graphs.
* `EI` can be used as a fallback for challenging graphs. But first, try to fix your mechanical issues before using it: almost every printer should be able to run `MZV` instead.
* `2HUMP_EI` and `3HUMP_EI` are last-resort choices. Usually, they lead to a high level of smoothing in order to suppress the ringing while also using relatively low acceleration values. If they pop up as suggestions, it's likely your machine has underlying mechanical issues (that lead to pretty bad or "wide" graphs).
- **Recommended Acceleration** (`accel<=...`): This isn't a standalone figure. It's essential to also consider the `vibr` and `sm` values as it's a compromise between the three. They will give you the percentage of remaining vibrations and the smoothing after Input Shaping, when using the recommended acceleration. Nothing will prevent you from using higher acceleration values; they are not a limit. However, when doing so, Input Shaping may not be able to suppress all the ringing on your parts. Finally, keep in mind that high acceleration values are not useful at all if there is still a high level of remaining vibrations: you should address any mechanical issues first.
- **The remaining vibrations** (`vibr`): This directly correlates with ringing. It correspond to the total value of the blue "after shaper" signal. Ideally, you want a filter with minimal or zero vibrations.
- **Recommended Acceleration** (`accel<=...`): This isn't a standalone figure. It's essential to also consider the `vibr` and `sm` values as it's a compromise between the three. They will give you the percentage of remaining vibrations and the smoothing after Input Shaping, when using the recommended acceleration. Nothing will prevent you from using higher acceleration values; they are not a limit. However, in this case, Input Shaping may not be able to suppress all the ringing on your parts, and more smoothing will occur. Finally, keep in mind that high acceleration values are not useful at all if there is still a high level of remaining vibrations: you should address any mechanical issues first.
- **The remaining vibrations** (`vibr`): This directly correlates with ringing. It correspond to the total value of the "after shaper" signal. Ideally, you want a filter with minimal remaining vibrations.
- **Shaper recommendations**: This script will give you some tailored recommendations based on your graphs. Pick the one that suit your needs:
* The "performance" shaper is Klipper's original suggestion that is good for high acceleration while also sometimes allowing a little bit of remaining vibrations. Use it if your goal is speed printing and you don't care much about some remaining ringing.
* The "performance" shaper is Klipper's original suggestion, which is good for high acceleration, but sometimes allows a little residual vibration while minimizing smoothing. Use it if your goal is speed printing and you don't care much about some remaining ringing.
* The "low vibration" shaper aims for the lowest level of remaining vibration to ensure the best print quality with minimal ringing. This should be the best bet for most users.
* Sometimes, only a single recommendation called "best" shaper is presented. This means that either no suitable "low vibration" shaper was found (due to a high level of vibration or with too much smoothing) or because the "performance" shaper is also the one with the lowest vibration level.
- **Damping Ratio**: Displayed at the end, this estimatation is only reliable when the graph shows a distinct, standalone and clean peak. On a well tuned machine, setting the damping ratio (instead of Klipper's 0.1 default value) can further reduce the ringing at high accelerations and with higher square corner velocities.
* Sometimes only a single recommendation is given as the "best" shaper. This means that either no suitable "low vibration" shaper was found (due to a high level of residual vibration or too much smoothing), or that the "performance" shaper is also the one with the lowest vibration level.
- **Damping Ratio**: Displayed at the end, this is an estimate based on your data that is used to improve the shaper recommendations for your machine. Defining it in the `[input_shaper]` section (instead of Klipper's default value of 0.1) can further reduce ringing at high accelerations and higher square corner velocities.
Then, add to your configuration:
```
@@ -103,7 +105,7 @@ Here's how to troubleshoot the issue:
Such graph patterns can arise from various factors, and there isn't a one-size-fits-all solution. To address them:
1. A wobbly table can be the cause. So first thing to do is to try with the printer directly on the floor.
1. Ensure optimal belt tension using the [`BELTS_SHAPER_CALIBRATION` macro](./belts_tuning.md).
1. Ensure optimal belt tension using the [`COMPARE_BELTS_RESPONSES` macro](./belts_tuning.md).
1. If problems persist, it might be due to an improperly squared gantry. For correction, refer to [Nero3D's de-racking video](https://youtu.be/cOn6u9kXvy0?si=ZCSdWU6br3Y9rGsy).
1. If it's still there... you will need to find out what is resonating to fix it. You can use the `EXCITATE_AXIS_AT_FREQ` macro to help you find it.
@@ -146,17 +148,19 @@ The presence of an unbalanced or poorly running fan can be directly observed in
| --- | --- | --- |
| ![](../images/shaper_graphs/fan_notproblematic.png) | ![](../images/shaper_graphs/fan_maybeproblematic.png) | ![](../images/shaper_graphs/fan_problematic.png) |
### Noisy accelerometer
### Spectrogram lightshow (LIS2DW)
The integration of LIS2DW as a resonance measuring device in Klipper is starting to be more and more common, particularly due to some manufacturers promoting its superiority over the established ADXL345. A critical analysis of their respective datasheets reveals a nuanced reality: the LIS2DW offers a higher sampling rate, but also it tends to exhibit increased noise levels at comparable sensitivity settings compared to the ADXL345. But, given that LIS2DW chips are also 5-10 times cheaper, it definitely makes sense for mass-producing PCBs.
The integration of LIS2DW as a resonance measuring device in Klipper is becoming more and more common, especially because some manufacturers are promoting its superiority over the established ADXL345. It's indeed a new generation chip that should be better to measure traditional "accelerations". However, a detailed comparison of their datasheets and practical measurements paints a more complex picture: the LIS2DW boasts greater sensitivity, but it has a lower sampling rate and produce significant aliasing that results in a "lightshow" effect on the spectrogram, characterized by multiple spurious resonance lines parallel to the main resonance, accompanied by intersecting interference lines that distort the harmonic profile.
In our use case, this chip manifests aliasing in the spectrogram that can be seen as additional 'ghosting' resonance lines parallel to the main resonance diagonal, with some intersecting interference lines that skew across the harmonics. Fortunately, this apparent lightshow do not distort the overall shape of the top graph and both the resonant frequency and damping ratio remain accurately measured as well as the input shaping filters that are also quite similar. This only makes it more challenging to discern fine details that could be masked, and it doesn't help for diagnosing mechanical issues.
While in most cases the overall shape of the upper resonance curve, including resonant frequency and damping ratio, should be close to reality with fairly similar input shaping filter recommendations, this aliasing makes it difficult to identify subtle details and complicates the diagnosis of mechanical problems. In particular, it introduces a potential misinterpretation of "[binding](#low-frequency-energy)" due to a global offset of the curve. In the worst cases (see the last example below), the aliasing is too severe and adds too much noise to the graph, making it unusable.
Finally, please note that LIS2DW are known to add a small offset all over the top graph due to this aliasing. So the curve and peaks might be a bit higher, even at very low frequencies: in this case, this is probably not [#low-frequency-energy] but just some noise and it's not a mechanical problem.
> **Note**:
>
> It seems that some LIS2DW chips are better than others: in some cases aliasing is not a problem, but it can also be very problematic and lead to bad graphs, as seen in the "Extreme Aliasing" example below.
| LIS2DW measurement | ADXL345 measurement |
| --- | --- |
| ![](../images/shaper_graphs/chipcomp_s2dw.png) | ![](../images/shaper_graphs/chipcomp_adxl.png) |
| ADXL345 measurement | LIS2DW measurement | LIS2DW extreme aliasing |
| --- | --- | --- |
| ![](../images/shaper_graphs/chipcomp_adxl.png) | ![](../images/shaper_graphs/chipcomp_s2dw.png) | ![](../images/shaper_graphs/chipcomp_s2dw_2.png) |
### Crazy graphs and miscs

View File

@@ -1,13 +1,13 @@
# Belt relative difference measurements
The `BELTS_SHAPER_CALIBRATION` macro is dedicated for CoreXY machines where it can help you to diagnose belt path problems by measuring and plotting the differences between their behavior. It will also help you tension your belts at the same tension.
The `COMPARE_BELTS_RESPONSES` macro is dedicated for CoreXY machines where it can help you to diagnose belt path problems by measuring and plotting the differences between their behavior. It will also help you tension your belts at the same tension.
## Usage
**Before starting, ensure that the belts are properly tensioned**. For example, you can follow the [Voron belt tensioning documentation](https://docs.vorondesign.com/tuning/secondary_printer_tuning.html#belt-tension). This is crucial: you need a good starting point to then iterate from it!
Then, call the `BELTS_SHAPER_CALIBRATION` macro and look for the graphs in the results folder. Here are the parameters available:
Then, call the `COMPARE_BELTS_RESPONSES` macro and look for the graphs in the results folder. Here are the parameters available:
| parameters | default value | description |
|-----------:|---------------|-------------|
@@ -15,7 +15,7 @@ Then, call the `BELTS_SHAPER_CALIBRATION` macro and look for the graphs in the r
|FREQ_END|133|Maximum excitation frequency|
|HZ_PER_SEC|1|Number of Hz per seconds for the test|
|KEEP_N_RESULTS|3|Total number of results to keep in the result folder after running the test. The older results are automatically cleaned up|
|KEEP_CSV|True|Weither or not to keep the CSV data files alonside the PNG graphs|
|KEEP_CSV|0|Weither or not to keep the CSV data files alonside the PNG graphs|
## Graphs description
@@ -60,7 +60,6 @@ The following graphs show the effect of incorrect or uneven belt tension. Rememb
| The A belt tension is slightly lower than the B belt tension. This can be quickly remedied by tightening the screw only about one-half to one full turn. &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; | ![](../images/belt_graphs/low_A_tension.png) |
| B belt tension is significantly lower than the A belt. If you encounter this graph, I recommend going back to the [Voron belt tensioning documentation](https://docs.vorondesign.com/tuning/secondary_printer_tuning.html#belt-tension) for a more solid base. However, you could slightly increase the B tension and decrease the A tension, but exercise caution to avoid diverging from the recommended 110Hz base. | ![](../images/belt_graphs/low_B_tension.png) |
### Belt path problem
If there's an issue within the belt path, aligning and overlaying the curve might be unachievable even with proper belt tension. Begin by verifying that each belt has **the exact same number of teeth**. Then, inspect the belt paths, bearings, any signs of wear (like belt dust), and ensure the belt aligns correctly on all bearing flanges during motion.
@@ -70,3 +69,13 @@ If there's an issue within the belt path, aligning and overlaying the curve migh
| On this chart, there are two peaks. The first pair of peaks seems nearly aligned, but the second peak appears solely on the B belt, significantly deviating from the A belt. This suggests an issue with the belt path, likely with the B belt. | ![](../images/belt_graphs/beltpath_problem1.png) |
| This chart is quite complex, displaying 3 peaks. While all the pairs seem well-aligned and tension ok, there are more than just two total peaks because `[1]` is split in two smaller peaks. This could be an issue, but it's not certain. It's recommended to generate the [Axis Input Shaper Graphs](./axis_tuning.md) to determine its impact. | ![](../images/belt_graphs/beltpath_problem2.png) |
| This graph might indicate too low belt tension, but also potential binding, friction or something impeding the toolhead's smooth movement. Indeed, the signal strength is considerably low (with a peak around 300k, compared to the typical ~1M) and is primarily filled with noise. Start by going back [here](https://docs.vorondesign.com/tuning/secondary_printer_tuning.html#belt-tension) to establish a robust tension foundation. Next, produce the [Axis Input Shaper Graphs](./axis_tuning.md) to identify any binding and address the issue. | ![](../images/belt_graphs/beltpath_problem3.png) |
### Spectrogram lightshow (LIS2DW)
The integration of LIS2DW as a resonance measuring device in Klipper is becoming more and more common, especially because some manufacturers are promoting its superiority over the established ADXL345. It's indeed a new generation chip that should be better to measure traditional "accelerations". However, a detailed comparison of their datasheets and practical measurements paints a more complex picture: the LIS2DW boasts greater sensitivity, but it has a lower sampling rate and produce significant aliasing that results in a "lightshow" effect on the spectrogram, characterized by multiple spurious resonance lines parallel to the main resonance, accompanied by intersecting interference lines that distort the harmonic profile.
For the belt graph, this can be problematic because it can introduce a lot of noise into the results and make them difficult to interpret, and it will probably tell you that there is a mechanical problem when there isn't.
| ADXL345 measurement | LIS2DW measurement |
| --- | --- |
| ![](../images/belt_graphs/chipcomp_adxl.png) | ![](../images/belt_graphs/chipcomp_s2dw.png) |

View File

@@ -0,0 +1,99 @@
# Machine vibrations profiles
The `CREATE_VIBRATIONS_PROFILE` macro analyzes accelerometer data to plot the vibration profile of your 3D printer. The resulting graphs highlight optimal print speeds and angles that produce the least amount of vibration. It provides a technical basis for adjustments in your slicer profiles, but also in hardware setup and TMC driver parameters to improve print quality and reduce VFAs (vertical fines artifacts).
> **Warning**
>
> You will need to calibrate the standard input shaper algorithms of Klipper using the other macros first! This test should be used as a last step to calibrate your printer with Shake&Tune.
## Usage
Call the `CREATE_VIBRATIONS_PROFILE` macro with the speed range you want to measure. Here are the parameters available:
| parameters | default value | description |
|-----------:|---------------|-------------|
|SIZE|100|maximum size in mm of the circle in which the recorded movements take place|
|Z_HEIGHT|20|z height to put the toolhead before starting the movements. Be careful, if your accelerometer is mounted under the nozzle, increase it to avoid crashing it on the bed of the machine|
|ACCEL|3000 (or max printer accel)|accel in mm/s^2 used for all moves. Try to keep it relatively low to avoid dynamic effects that alter the measurements, but high enough to achieve a constant speed for >~70% of the segments. 3000 is a reasonable default for most printers, unless you want to record at very high speed, in which case you will want to increase SIZE and decrease ACCEL a bit.|
|MAX_SPEED|200|maximum speed of the toolhead in mm/s to record for analysis|
|SPEED_INCREMENT|2|toolhead speed increments in mm/s between each movement|
|TRAVEL_SPEED|200|speed in mm/s used for all the travels moves|
|ACCEL_CHIP|"adxl345"|accelerometer chip name in the config|
|KEEP_N_RESULTS|3|Total number of results to keep in the result folder after running the test. The older results are automatically cleaned up|
|KEEP_CSV|0|Weither or not to keep the CSV data files alonside the PNG graphs (archived in a tarball)|
## Graphs description
The `CREATE_VIBRATIONS_PROFILE` macro results are constituted of a set of 6 plots. At the top of the figure you can also see all the detected motor, current and TMC driver parameters. These notes are just for reference in case you want to tinker with them and don't forget what you changed between each run of the macro.
![](../images/vibrations_example.png)
### Global Speed Energy Profile
| Example | description |
|:-----|-------------|
|![](../images/vibrations_graphs/global_speed_energy_profile.png)|This plot shows the relationship between toolhead speed (mm/s) and vibrational energy, providing a global view of how speed impacts vibration across all movements. By using speeds from the green zones, your printer will run more smoothly and you will minimize vibrations and related fine artifacts in prints|
This graph is the most important one of this tool. You want to use it to adapt your slicer profile, especially by looking at the "vibration metric" curve, that will helps you find which speeds can be problematic for your printer. Here's the magic behind it, broken down into two key parts:
1. **Spectrum Variance**: This is like the mood ring of your printer, showing how the vibes (a.k.a vibrations) change when printing from different angles. If the "vibration metric" is low, it means your printer is keeping its cool, staying consistent no matter the angle. But if it spikes, it's a sign that some angles are making your printer jitter more than a caffeinated squirrel. *Imagine it like this: You're looking for a chill party vibe where the music's good at every angle, not one where you turn a corner and suddenly it's too loud or too soft.*
2. **Spectrum Max**: This one's about the max volume of the party, or how loud the strongest vibration is across all angles at any speed. We're aiming to avoid the speeds that crank up the volume too high, causing a resonance rave in the motors. *Think of it this way: You don't want the base so high that it feels like your heart's going to beat out of your chest. We're looking for a nice background level where everyone can chat and have a good time.*
And why do we care so much about finding these speeds? Because during a print, the toolhead will move in all directions depending on the geometry, and we want a speed that's like a good friend, reliable no matter what the situation. Fortunately, since the motors in our printers share their vibes without non-linear mixing and just add up (think of it as each doing its own dance without bumping into each other), we can find those happy green zones on the graph: these are the speeds that keep the vibe cool and the energy just right, making them perfect for all your print jobs.
### Polar Angle Energy Profile
| Example | description |
|:-----|-------------|
|![](../images/vibrations_graphs/polar_angle_energy_profile.png)|Shows how vibrational energy varies with the direction where the toolhead is running. It helps in identifying angles that produce less vibration, and potentially detect assymetries in the belt paths for a CoreXY printer|
This plot is like your go-to playlist for finding those angles where the vibe is just right. But here's the thing: when printing, your toolhead will groove in all directions and angles, depending on the geometry of your parts, so sticking to just one angle isn't possible. My tip to make the most of this chart for your prints: if you're working on something rectangular, try to align it so that most of the edges match the angles that's least likely to make your printer jitter. For those sleek CoreXY printers, aiming for 45/135 degrees is usually a hit, while the trusty Cartesian printers groove best at 0/90 degrees. And for everything else? Well, there's not much more to do here except rely on the [Global Speed Energy Profile chart](#global-speed-energy-profile) to tune your slicer profile speeds instead.
Now, onto the symmetry indicator. Think of this tool as the dance coach for your printer, especially designed for those with a symmetrical setup like CoreXY models. It's all about using some pretty neat math (cross-correlation, to be exact) to check out the vibes from both sides of the dance floor. Picture it as a top-notch party dancer, scanning the room at every angle, judging each dancer, and only giving top marks when everyone is perfectly in sync. This tool is ace at catching any sneakiness in your motor control or belt path, highlighting any "butterfly" shapes or even the slightest variations in the motors' resonance patterns. It's like having a magnifying glass that points out exactly where the party fouls are, helping you to fix them and keep your prints rolling out smooth and stunning.
### Angular Speed Energy Profiles
| Example | description |
|:-----|-------------|
|![](../images/vibrations_graphs/angular_speed_energy_profile.png)|Provides a detailed view of how energy distribution changes with speed for specific angles. It's useful for fine-tuning speeds for different directions of motion, or for tracking and diagnosing your printer's behavior across the major axes|
This chart is like a snapshot, capturing the vibe at certain angles of your printing party. But remember, it's just a glimpse into a few specific angles and doesn't fully reveal the whole dance floor where the toolhead moves in every direction, vibing with the unique geometry of your parts. So, think of it as a way to peek into how everyone's grooving in each corner of the party. It's great for a quick check-up to see how the vibe is holding up, but when it comes to setting the rhythm of your slicer speeds, you're going to want to use the [Global Speed Energy Profile chart](#global-speed-energy-profile) instead.
### Vibrations Heatmaps
| Example | description |
|:-----|-------------|
|![](../images/vibrations_graphs/vibrations_heatmaps.png)|Both plots provides a comprehensive overview of vibrational energy across speeds and angles. It visually identifies zones of high and low energy, aiding in the comprehensive understanding of the printer motors behavior. It's what is captured by the accelerometer and the base of all the other plots|
Both heatmaps lay down the vibe of vibrational energy across all speeds and angles, painting a picture of how the beat spreads throughout your printer's dance floor. The polar heatmap gives you a 360-degree whirl of the action, while the regular one lays it out in a classic 2D groove, yet both are vibing to the same tune and showing you where the energy's hot and popping and where it's cool and mellow across your printer's operational range. Think of it as the unique fingerprint of your motor's behavior captured by the accelerometer, it's the raw rhythm of your printer in action.
Because the scale is both normalized and logarithmic, you're looking for a heatmap (or spectrogram) that has a cool, consistent "orangish" vibe throughout, signaling not so much change over the spectrum with fairly low motor resonances. See areas in your heatmap that swing from deep purple/black to bright white/yellow? That's a sign that your printer motors are hitting high resonances at certain angles and speed combinations that are above the baseline vibrations outside of those areas. But remember, this is just the lay of the land, a snapshot of the scene: tweaking this vibe directly may not be easy, but you can still [play around with the TMC driver parameters](#improving-the-results) to adjust the beats and find a smoother rhythm.
### Motor Frequency Profile
| Example | description |
|:-----|-------------|
|![](../images/vibrations_graphs/motor_frequency_profile.png)|Identifies the resonant frequencies of the motors and their damping ratios. Informative for now, but will be used later|
For now, this graph is purely informational and is a measurement of the motor's natural resonance profile. Think of this plot as a sneak peek at the inner workings of your printer's dance floor. It's not quite ready to hit the main stage for practical use, but just you wait... Keep an eye on this chart as it hints at future remixes where you'll get to play DJ and tweak and tune your printer's performance like never before.
## Improving the results
These graphs essentially depict the behavior of the motor control on your machine. While there isn't much room for easy adjustments to enhance them, most of you should only utilize them to configure your slicer profile to avoid problematic speeds.
However, if you want to go the rabbit hole, as the data in these graphs largely hinges on the type of motors, their physical characteristic and the way they are controlled by the TMC drivers black magic, there are opportunities for optimization. Tweaking TMC parameters allow to adjust the peaks, enhance machine performance, or diminish overall machine noise. For this process, I recommend to directly use the [Klipper TMC Autotune](https://github.com/andrewmcgr/klipper_tmc_autotune) plugin, which should simplify everything considerably. But keep in mind that it's still an experimental plugin and it's not perfect.
For individuals inclined to reach the bottom of the rabbit hole and that want to handle this manually, the use of an oscilloscope is mandatory. Majority of the necessary resources are available directly on the Trinamics TMC website:
1. You should first consult the datasheet specific to your TMC model for guidance on parameter names and their respective uses.
2. Then to tune the parameters, have a look at the application notes available on their platform, especially [AN001](https://www.trinamic.com/fileadmin/assets/Support/AppNotes/AN001-SpreadCycle.pdf), [AN002](https://www.trinamic.com/fileadmin/assets/Support/AppNotes/AN002-StallGuard2.pdf), [AN003](https://www.trinamic.com/fileadmin/assets/Support/AppNotes/AN003_-_DcStep_Basics_and_Wizard.pdf) and [AN009](https://www.trinamic.com/fileadmin/assets/Support/AppNotes/AN009_Tuning_coolStep.pdf).
3. For a more comprehensive understanding, you might also want to explore [AN015](https://www.trinamic.com/fileadmin/assets/Support/AppNotes/AN015-StealthChop_Performance.pdf) and [AN021](https://www.trinamic.com/fileadmin/assets/Support/AppNotes/AN021-StealthChop_Performance_comparison_V1.12.pdf ), although they are more geared towards enhancing comprehension than calibration, akin to the TMC datasheet.
For reference, the default settings used in Klipper are:
```
#driver_TBL: 2
#driver_TOFF: 3
#driver_HEND: 0
#driver_HSTRT: 5
```

View File

@@ -1,51 +0,0 @@
# Vibrations measurements
The `VIBRATIONS_CALIBRATION` macro helps you to identify the speed settings that exacerbate the vibrations of the machine (ie. where the frame and motors resonate badly). This will help you to find the clean speed ranges where the machine is more silent and less prone to vertical fine artifacts on the prints.
> **Warning**
>
> You will first need to calibrate the standard input shaper algorithm of Klipper using the other macros! This test should not be used before as it would be useless and the results invalid.
## Usage
Call the `VIBRATIONS_CALIBRATION` macro with the direction and speed range you want to measure. Here are the parameters available:
| parameters | default value | description |
|-----------:|---------------|-------------|
|SIZE|60|size in mm of the area where the movements are done|
|DIRECTION|"XY"|direction vector where you want to do the measurements. Can be set to either "XY", "AB", "ABXY", "A", "B", "X", "Y", "Z", "E"|
|Z_HEIGHT|20|z height to put the toolhead before starting the movements. Be careful, if your accelerometer is mounted under the nozzle, increase it to avoid crashing it on the bed of the machine|
|ACCEL|3000 (or max printer accel)|accel in mm/s^2 used for all the moves. Try to keep it relatively low to avoid bad oscillations that affect the measurements, but but high enough to reach constant speed for >~70% of the segments|
|MIN_SPEED|20|minimum speed of the toolhead in mm/s for the movements|
|MAX_SPEED|200|maximum speed of the toolhead in mm/s for the movements|
|SPEED_INCREMENT|2|speed increments of the toolhead in mm/s between every movements|
|TRAVEL_SPEED|200|speed in mm/s used for all the travels moves|
|ACCEL_CHIP|"adxl345"|accelerometer chip name in the config|
|KEEP_N_RESULTS|3|Total number of results to keep in the result folder after running the test. The older results are automatically cleaned up|
|KEEP_CSV|True|Weither or not to keep the CSV data files alonside the PNG graphs (archived in a tarball)|
## Graphs description
![](../images/vibrations_graphs/vibration_graph_explanation.png)
![](../images/vibrations_graphs/vibration_graph_explanation2.png)
## Improving the results
These graphs essentially depict the behavior of the motor control on your machine. While there isn't much room for easy adjustments to enhance them, most of you should only utilize them to configure your slicer profile to avoid problematic speeds.
However, if you want to go the rabbit hole, as the data in these graphs largely hinges on the type of motors, their physical characteristic and the way they are controlled by the TMC drivers black magic, there are opportunities for optimization. Tweaking TMC parameters allow to adjust the peaks, enhance machine performance, or diminish overall machine noise. For this process, I recommend to directly use the [Klipper TMC Autotune](https://github.com/andrewmcgr/klipper_tmc_autotune) plugin, which should simplify everything considerably. But keep in mind that it's still an experimental plugin and it's not perfect.
For individuals inclined to reach the bottom of the rabbit hole and that want to handle this manually, the use of an oscilloscope is mandatory. Majority of the necessary resources are available directly on the Trinamics TMC website:
1. You should first consult the datasheet specific to your TMC model for guidance on parameter names and their respective uses.
2. Then to tune the parameters, have a look at the application notes available on their platform, especially [AN001](https://www.trinamic.com/fileadmin/assets/Support/AppNotes/AN001-SpreadCycle.pdf), [AN002](https://www.trinamic.com/fileadmin/assets/Support/AppNotes/AN002-StallGuard2.pdf), [AN003](https://www.trinamic.com/fileadmin/assets/Support/AppNotes/AN003_-_DcStep_Basics_and_Wizard.pdf) and [AN009](https://www.trinamic.com/fileadmin/assets/Support/AppNotes/AN009_Tuning_coolStep.pdf).
3. For a more comprehensive understanding, you might also want to explore [AN015](https://www.trinamic.com/fileadmin/assets/Support/AppNotes/AN015-StealthChop_Performance.pdf) and [AN021](https://www.trinamic.com/fileadmin/assets/Support/AppNotes/AN021-StealthChop_Performance_comparison_V1.12.pdf ), although they are more geared towards enhancing comprehension than calibration, akin to the TMC datasheet.
For reference, the default settings used in Klipper are:
```
#driver_TBL: 2
#driver_TOFF: 3
#driver_HEND: 0
#driver_HSTRT: 5
```

View File

@@ -1,6 +1,7 @@
#!/bin/bash
USER_CONFIG_PATH="${HOME}/printer_data/config"
MOONRAKER_CONFIG="${HOME}/printer_data/config/moonraker.conf"
KLIPPER_PATH="${HOME}/klipper"
K_SHAKETUNE_PATH="${HOME}/klippain_shaketune"
@@ -110,11 +111,24 @@ function link_gcodeshellcommandpy {
fi
}
function add_updater {
update_section=$(grep -c '\[update_manager[a-z ]* Klippain-ShakeTune\]' $MOONRAKER_CONFIG || true)
if [ "$update_section" -eq 0 ]; then
echo -n "[INSTALL] Adding update manager to moonraker.conf..."
cat ${K_SHAKETUNE_PATH}/moonraker.conf >> $MOONRAKER_CONFIG
fi
}
function restart_klipper {
echo "[POST-INSTALL] Restarting Klipper..."
sudo systemctl restart klipper
}
function restart_moonraker {
echo "[POST-INSTALL] Restarting Moonraker..."
sudo systemctl restart moonraker
}
printf "\n=============================================\n"
echo "- Klippain Shake&Tune module install script -"
@@ -126,5 +140,7 @@ preflight_checks
check_download
setup_venv
link_extension
add_updater
link_gcodeshellcommandpy
restart_klipper
restart_moonraker

11
moonraker.conf Normal file
View File

@@ -0,0 +1,11 @@
## Klippain Shake&Tune automatic update management
[update_manager Klippain-ShakeTune]
type: git_repo
origin: https://github.com/Frix-x/klippain-shaketune.git
path: ~/klippain_shaketune
virtualenv: ~/klippain_shaketune-env
requirements: requirements.txt
system_dependencies: system-dependencies.json
primary_branch: main
managed_services: klipper

29
pyproject.toml Normal file
View File

@@ -0,0 +1,29 @@
[project]
name = "Shake&Tune"
description = "Klipper streamlined input shaper workflow and calibration tools"
readme = "README.md"
requires-python = ">= 3.9"
authors = [
{name = "Félix Boisselier", email = "felix@fboisselier.fr"}
]
keywords = ["klipper", "input shaper", "calibration", "3d printer"]
license = {file = "LICENSE"}
[project.urls]
Repository = "https://github.com/Frix-x/klippain-shaketune"
Documentation = "https://github.com/Frix-x/klippain-shaketune/tree/main/docs"
Issues = "https://github.com/Frix-x/klippain-shaketune/issues"
Changelog = "https://github.com/Frix-x/klippain-shaketune/releases"
[tool.ruff]
line-length = 120 # We all have modern screens now and I believe this should be brought in line with current technology
indent-width = 4
target-version = "py39"
[tool.ruff.lint]
select = ["E4", "E7", "E9", "F", "B"]
unfixable = ["B"]
[tool.ruff.format]
quote-style = "single"
skip-magic-trailing-comma = false

View File

View File

@@ -5,17 +5,12 @@
######################################
# Written by Frix_x#0161 #
# Be sure to make this script executable using SSH: type 'chmod +x ./analyze_axesmap.py' when in the folder !
#####################################################################
################ !!! DO NOT EDIT BELOW THIS LINE !!! ################
#####################################################################
import optparse
import numpy as np
from locale_utils import print_with_c_locale
from scipy.signal import butter, filtfilt
from ..helpers.locale_utils import print_with_c_locale
NUM_POINTS = 500
@@ -24,6 +19,7 @@ NUM_POINTS = 500
# Computation
######################################################################
def accel_signal_filter(data, cutoff=2, fs=100, order=5):
nyq = 0.5 * fs
normal_cutoff = cutoff / nyq
@@ -32,10 +28,12 @@ def accel_signal_filter(data, cutoff=2, fs=100, order=5):
filtered_data -= np.mean(filtered_data)
return filtered_data
def find_first_spike(data):
min_index, max_index = np.argmin(data), np.argmax(data)
return ('-', min_index) if min_index < max_index else ('', max_index)
def get_movement_vector(data, start_idx, end_idx):
if start_idx < end_idx:
vector = []
@@ -45,21 +43,19 @@ def get_movement_vector(data, start_idx, end_idx):
else:
return np.zeros(3)
def angle_between(v1, v2):
v1_u = v1 / np.linalg.norm(v1)
v2_u = v2 / np.linalg.norm(v2)
return np.arccos(np.clip(np.dot(v1_u, v2_u), -1.0, 1.0))
def compute_errors(filtered_data, spikes_sorted, accel_value, num_points):
# Get the movement start points in the correct order from the sorted bag of spikes
movement_starts = [spike[0][1] for spike in spikes_sorted]
# Theoretical unit vectors for X, Y, Z printer axes
printer_axes = {
'x': np.array([1, 0, 0]),
'y': np.array([0, 1, 0]),
'z': np.array([0, 0, 1])
}
printer_axes = {'x': np.array([1, 0, 0]), 'y': np.array([0, 1, 0]), 'z': np.array([0, 0, 1])}
alignment_errors = {}
sensitivity_errors = {}
@@ -82,6 +78,7 @@ def compute_errors(filtered_data, spikes_sorted, accel_value, num_points):
# Startup and main routines
######################################################################
def parse_log(logname):
with open(logname) as f:
for header in f:
@@ -91,26 +88,28 @@ def parse_log(logname):
# Raw accelerometer data
return np.loadtxt(logname, comments='#', delimiter=',')
# Power spectral density data or shaper calibration data
raise ValueError("File %s does not contain raw accelerometer data and therefore "
"is not supported by this script. Please use the official Klipper "
"calibrate_shaper.py script to process it instead." % (logname,))
raise ValueError(
'File %s does not contain raw accelerometer data and therefore '
'is not supported by this script. Please use the official Klipper '
'calibrate_shaper.py script to process it instead.' % (logname,)
)
def axesmap_calibration(lognames, accel=None):
# Parse the raw data and get them ready for analysis
raw_datas = [parse_log(filename) for filename in lognames]
if len(raw_datas) > 1:
raise ValueError("Analysis of multiple CSV files at once is not possible with this script")
raise ValueError('Analysis of multiple CSV files at once is not possible with this script')
filtered_data = [accel_signal_filter(raw_datas[0][:, i+1]) for i in range(3)]
filtered_data = [accel_signal_filter(raw_datas[0][:, i + 1]) for i in range(3)]
spikes = [find_first_spike(filtered_data[i]) for i in range(3)]
spikes_sorted = sorted([(spikes[0], 'x'), (spikes[1], 'y'), (spikes[2], 'z')], key=lambda x: x[0][1])
# Using the previous variables to get the axes_map and errors
axes_map = ','.join([f"{spike[0][0]}{spike[1]}" for spike in spikes_sorted])
axes_map = ','.join([f'{spike[0][0]}{spike[1]}' for spike in spikes_sorted])
# alignment_error, sensitivity_error = compute_errors(filtered_data, spikes_sorted, accel, NUM_POINTS)
results = f"Detected axes_map:\n {axes_map}\n"
results = f'Detected axes_map:\n {axes_map}\n'
# TODO: work on this function that is currently not giving good results...
# results += "Accelerometer angle deviation:\n"
@@ -127,21 +126,21 @@ def axesmap_calibration(lognames, accel=None):
def main():
# Parse command-line arguments
usage = "%prog [options] <raw logs>"
usage = '%prog [options] <raw logs>'
opts = optparse.OptionParser(usage)
opts.add_option("-o", "--output", type="string", dest="output",
default=None, help="filename of output graph")
opts.add_option("-a", "--accel", type="string", dest="accel",
default=None, help="acceleration value used to do the movements")
opts.add_option('-o', '--output', type='string', dest='output', default=None, help='filename of output graph')
opts.add_option(
'-a', '--accel', type='string', dest='accel', default=None, help='acceleration value used to do the movements'
)
options, args = opts.parse_args()
if len(args) < 1:
opts.error("No CSV file(s) to analyse")
opts.error('No CSV file(s) to analyse')
if options.accel is None:
opts.error("You must specify the acceleration value used when generating the CSV file (option -a)")
opts.error('You must specify the acceleration value used when generating the CSV file (option -a)')
try:
accel_value = float(options.accel)
except ValueError:
opts.error("Invalid acceleration value. It should be a numeric value.")
opts.error('Invalid acceleration value. It should be a numeric value.')
results = axesmap_calibration(args, accel_value)
print_with_c_locale(results)

View File

@@ -5,27 +5,31 @@
#################################################
# Written by Frix_x#0161 #
# Be sure to make this script executable using SSH: type 'chmod +x ./graph_belts.py' when in the folder!
#####################################################################
################ !!! DO NOT EDIT BELOW THIS LINE !!! ################
#####################################################################
import optparse, matplotlib, sys, importlib, os
from datetime import datetime
import optparse
import os
from collections import namedtuple
from datetime import datetime
import matplotlib
import matplotlib.colors
import matplotlib.font_manager
import matplotlib.pyplot as plt
import matplotlib.ticker
import numpy as np
import matplotlib.pyplot as plt
import matplotlib.font_manager, matplotlib.ticker, matplotlib.colors
from scipy.interpolate import griddata
matplotlib.use('Agg')
from locale_utils import set_locale, print_with_c_locale
from common_func import compute_spectrogram, detect_peaks, get_git_version, parse_log, setup_klipper_import
from ..helpers.common_func import (
compute_curve_similarity_factor,
compute_spectrogram,
detect_peaks,
parse_log,
setup_klipper_import,
)
from ..helpers.locale_utils import print_with_c_locale, set_locale
ALPHABET = "ABCDEFGHIJKLMNOPQRSTUVWXYZ" # For paired peaks names
ALPHABET = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' # For paired peaks names
PEAKS_DETECTION_THRESHOLD = 0.20
CURVE_SIMILARITY_SIGMOID_K = 0.6
@@ -37,11 +41,11 @@ DC_MAX_UNPAIRED_PEAKS_ALLOWED = 4
SignalData = namedtuple('CalibrationData', ['freqs', 'psd', 'peaks', 'paired_peaks', 'unpaired_peaks'])
KLIPPAIN_COLORS = {
"purple": "#70088C",
"orange": "#FF8D32",
"dark_purple": "#150140",
"dark_orange": "#F24130",
"red_pink": "#F2055C"
'purple': '#70088C',
'orange': '#FF8D32',
'dark_purple': '#150140',
'dark_orange': '#F24130',
'red_pink': '#F2055C',
}
@@ -49,27 +53,6 @@ KLIPPAIN_COLORS = {
# Computation of the PSD graph
######################################################################
# Calculate or estimate a "similarity" factor between two PSD curves and scale it to a percentage. This is
# used here to quantify how close the two belts path behavior and responses are close together.
def compute_curve_similarity_factor(signal1, signal2):
freqs1 = signal1.freqs
psd1 = signal1.psd
freqs2 = signal2.freqs
psd2 = signal2.psd
# Interpolate PSDs to match the same frequency bins and do a cross-correlation
psd2_interp = np.interp(freqs1, freqs2, psd2)
cross_corr = np.correlate(psd1, psd2_interp, mode='full')
# Find the peak of the cross-correlation and compute a similarity normalized by the energy of the signals
peak_value = np.max(cross_corr)
similarity = peak_value / (np.sqrt(np.sum(psd1**2) * np.sum(psd2_interp**2)))
# Apply sigmoid scaling to get better numbers and get a final percentage value
scaled_similarity = sigmoid_scale(-np.log(1 - similarity), CURVE_SIMILARITY_SIGMOID_K)
return scaled_similarity
# This function create pairs of peaks that are close in frequency on two curves (that are known
# to be resonances points and must be similar on both belts on a CoreXY kinematic)
@@ -81,37 +64,37 @@ def pair_peaks(peaks1, freqs1, psd1, peaks2, freqs2, psd2):
for p2 in peaks2:
distances.append(abs(freqs1[p1] - freqs2[p2]))
distances = np.array(distances)
median_distance = np.median(distances)
iqr = np.percentile(distances, 75) - np.percentile(distances, 25)
threshold = median_distance + 1.5 * iqr
threshold = min(threshold, 10)
# Pair the peaks using the dynamic thresold
paired_peaks = []
unpaired_peaks1 = list(peaks1)
unpaired_peaks2 = list(peaks2)
while unpaired_peaks1 and unpaired_peaks2:
min_distance = threshold + 1
pair = None
for p1 in unpaired_peaks1:
for p2 in unpaired_peaks2:
distance = abs(freqs1[p1] - freqs2[p2])
if distance < min_distance:
min_distance = distance
pair = (p1, p2)
if pair is None: # No more pairs below the threshold
if pair is None: # No more pairs below the threshold
break
p1, p2 = pair
paired_peaks.append(((p1, freqs1[p1], psd1[p1]), (p2, freqs2[p2], psd2[p2])))
unpaired_peaks1.remove(p1)
unpaired_peaks2.remove(p2)
return paired_peaks, unpaired_peaks1, unpaired_peaks2
@@ -119,6 +102,7 @@ def pair_peaks(peaks1, freqs1, psd1, peaks2, freqs2, psd2):
# Computation of the differential spectrogram
######################################################################
# Interpolate source_data (2D) to match target_x and target_y in order to
# get similar time and frequency dimensions for the differential spectrogram
def interpolate_2d(target_x, target_y, source_x, source_y, source_data):
@@ -146,7 +130,7 @@ def compute_combined_spectrogram(data1, data2):
# Interpolate the spectrograms
pdata2_interpolated = interpolate_2d(bins1, t1, bins2, t2, pdata2)
# Combine them in two form: a summed diff for the MHI computation and a diverging diff for the spectrogram colors
combined_sum = np.abs(pdata1 - pdata2_interpolated)
combined_divergent = pdata1 - pdata2_interpolated
@@ -168,58 +152,61 @@ def compute_mhi(combined_data, similarity_coefficient, num_unpaired_peaks):
total_variability_metric = np.sum(np.abs(np.gradient(filtered_data)))
# Scale the metric to a percentage using the threshold (found empirically on a large number of user data shared to me)
base_percentage = (np.log1p(total_variability_metric) / np.log1p(DC_THRESHOLD_METRIC)) * 100
# Adjust the percentage based on the similarity_coefficient to add a grain of salt
adjusted_percentage = base_percentage * (1 - DC_GRAIN_OF_SALT_FACTOR * (similarity_coefficient / 100))
# Adjust the percentage again based on the number of unpaired peaks to add a second grain of salt
peak_confidence = num_unpaired_peaks / DC_MAX_UNPAIRED_PEAKS_ALLOWED
final_percentage = (1 - peak_confidence) * adjusted_percentage + peak_confidence * 100
# Ensure the result lies between 0 and 100 by clipping the computed value
final_percentage = np.clip(final_percentage, 0, 100)
return final_percentage, mhi_lut(final_percentage)
# LUT to transform the MHI into a textual value easy to understand for the users of the script
def mhi_lut(mhi):
def mhi_lut(mhi):
ranges = [
(0, 30, "Excellent mechanical health"),
(30, 45, "Good mechanical health"),
(45, 55, "Acceptable mechanical health"),
(55, 70, "Potential signs of a mechanical issue"),
(70, 85, "Likely a mechanical issue"),
(85, 100, "Mechanical issue detected")
(0, 30, 'Excellent mechanical health'),
(30, 45, 'Good mechanical health'),
(45, 55, 'Acceptable mechanical health'),
(55, 70, 'Potential signs of a mechanical issue'),
(70, 85, 'Likely a mechanical issue'),
(85, 100, 'Mechanical issue detected'),
]
for lower, upper, message in ranges:
if lower < mhi <= upper:
return message
return "Error computing MHI value"
return 'Error computing MHI value'
######################################################################
# Graphing
######################################################################
def plot_compare_frequency(ax, lognames, signal1, signal2, similarity_factor, max_freq):
# Get the belt name for the legend to avoid putting the full file name
signal1_belt = (lognames[0].split('/')[-1]).split('_')[-1][0]
signal2_belt = (lognames[1].split('/')[-1]).split('_')[-1][0]
if signal1_belt == 'A' and signal2_belt == 'B':
signal1_belt += " (axis 1,-1)"
signal2_belt += " (axis 1, 1)"
signal1_belt += ' (axis 1,-1)'
signal2_belt += ' (axis 1, 1)'
elif signal1_belt == 'B' and signal2_belt == 'A':
signal1_belt += " (axis 1, 1)"
signal2_belt += " (axis 1,-1)"
signal1_belt += ' (axis 1, 1)'
signal2_belt += ' (axis 1,-1)'
else:
print_with_c_locale("Warning: belts doesn't seem to have the correct name A and B (extracted from the filename.csv)")
print_with_c_locale(
"Warning: belts doesn't seem to have the correct name A and B (extracted from the filename.csv)"
)
# Plot the two belts PSD signals
ax.plot(signal1.freqs, signal1.psd, label="Belt " + signal1_belt, color=KLIPPAIN_COLORS['purple'])
ax.plot(signal2.freqs, signal2.psd, label="Belt " + signal2_belt, color=KLIPPAIN_COLORS['orange'])
ax.plot(signal1.freqs, signal1.psd, label='Belt ' + signal1_belt, color=KLIPPAIN_COLORS['purple'])
ax.plot(signal2.freqs, signal2.psd, label='Belt ' + signal2_belt, color=KLIPPAIN_COLORS['orange'])
# Trace the "relax region" (also used as a threshold to filter and detect the peaks)
psd_lowest_max = min(signal1.psd.max(), signal2.psd.max())
@@ -234,38 +221,71 @@ def plot_compare_frequency(ax, lognames, signal1, signal2, similarity_factor, ma
for _, (peak1, peak2) in enumerate(signal1.paired_peaks):
label = ALPHABET[paired_peak_count]
amplitude_offset = abs(((signal2.psd[peak2[0]] - signal1.psd[peak1[0]]) / max(signal1.psd[peak1[0]], signal2.psd[peak2[0]])) * 100)
amplitude_offset = abs(
((signal2.psd[peak2[0]] - signal1.psd[peak1[0]]) / max(signal1.psd[peak1[0]], signal2.psd[peak2[0]])) * 100
)
frequency_offset = abs(signal2.freqs[peak2[0]] - signal1.freqs[peak1[0]])
offsets_table_data.append([f"Peaks {label}", f"{frequency_offset:.1f} Hz", f"{amplitude_offset:.1f} %"])
ax.plot(signal1.freqs[peak1[0]], signal1.psd[peak1[0]], "x", color='black')
ax.plot(signal2.freqs[peak2[0]], signal2.psd[peak2[0]], "x", color='black')
ax.plot([signal1.freqs[peak1[0]], signal2.freqs[peak2[0]]], [signal1.psd[peak1[0]], signal2.psd[peak2[0]]], ":", color='gray')
ax.annotate(label + "1", (signal1.freqs[peak1[0]], signal1.psd[peak1[0]]),
textcoords="offset points", xytext=(8, 5),
ha='left', fontsize=13, color='black')
ax.annotate(label + "2", (signal2.freqs[peak2[0]], signal2.psd[peak2[0]]),
textcoords="offset points", xytext=(8, 5),
ha='left', fontsize=13, color='black')
offsets_table_data.append([f'Peaks {label}', f'{frequency_offset:.1f} Hz', f'{amplitude_offset:.1f} %'])
ax.plot(signal1.freqs[peak1[0]], signal1.psd[peak1[0]], 'x', color='black')
ax.plot(signal2.freqs[peak2[0]], signal2.psd[peak2[0]], 'x', color='black')
ax.plot(
[signal1.freqs[peak1[0]], signal2.freqs[peak2[0]]],
[signal1.psd[peak1[0]], signal2.psd[peak2[0]]],
':',
color='gray',
)
ax.annotate(
label + '1',
(signal1.freqs[peak1[0]], signal1.psd[peak1[0]]),
textcoords='offset points',
xytext=(8, 5),
ha='left',
fontsize=13,
color='black',
)
ax.annotate(
label + '2',
(signal2.freqs[peak2[0]], signal2.psd[peak2[0]]),
textcoords='offset points',
xytext=(8, 5),
ha='left',
fontsize=13,
color='black',
)
paired_peak_count += 1
for peak in signal1.unpaired_peaks:
ax.plot(signal1.freqs[peak], signal1.psd[peak], "x", color='black')
ax.annotate(str(unpaired_peak_count + 1), (signal1.freqs[peak], signal1.psd[peak]),
textcoords="offset points", xytext=(8, 5),
ha='left', fontsize=13, color='red', weight='bold')
ax.plot(signal1.freqs[peak], signal1.psd[peak], 'x', color='black')
ax.annotate(
str(unpaired_peak_count + 1),
(signal1.freqs[peak], signal1.psd[peak]),
textcoords='offset points',
xytext=(8, 5),
ha='left',
fontsize=13,
color='red',
weight='bold',
)
unpaired_peak_count += 1
for peak in signal2.unpaired_peaks:
ax.plot(signal2.freqs[peak], signal2.psd[peak], "x", color='black')
ax.annotate(str(unpaired_peak_count + 1), (signal2.freqs[peak], signal2.psd[peak]),
textcoords="offset points", xytext=(8, 5),
ha='left', fontsize=13, color='red', weight='bold')
ax.plot(signal2.freqs[peak], signal2.psd[peak], 'x', color='black')
ax.annotate(
str(unpaired_peak_count + 1),
(signal2.freqs[peak], signal2.psd[peak]),
textcoords='offset points',
xytext=(8, 5),
ha='left',
fontsize=13,
color='red',
weight='bold',
)
unpaired_peak_count += 1
# Add estimated similarity to the graph
ax2 = ax.twinx() # To split the legends in two box
ax2 = ax.twinx() # To split the legends in two box
ax2.yaxis.set_visible(False)
ax2.plot([], [], ' ', label=f'Estimated similarity: {similarity_factor:.1f}%')
ax2.plot([], [], ' ', label=f'Number of unpaired peaks: {unpaired_peak_count}')
@@ -279,17 +299,32 @@ def plot_compare_frequency(ax, lognames, signal1, signal2, similarity_factor, ma
ax.xaxis.set_minor_locator(matplotlib.ticker.AutoMinorLocator())
ax.yaxis.set_minor_locator(matplotlib.ticker.AutoMinorLocator())
ax.ticklabel_format(axis='y', style='scientific', scilimits=(0,0))
ax.ticklabel_format(axis='y', style='scientific', scilimits=(0, 0))
ax.grid(which='major', color='grey')
ax.grid(which='minor', color='lightgrey')
fontP = matplotlib.font_manager.FontProperties()
fontP.set_size('small')
ax.set_title('Belts Frequency Profiles (estimated similarity: {:.1f}%)'.format(similarity_factor), fontsize=14, color=KLIPPAIN_COLORS['dark_orange'], weight='bold')
ax.set_title(
'Belts Frequency Profiles (estimated similarity: {:.1f}%)'.format(similarity_factor),
fontsize=14,
color=KLIPPAIN_COLORS['dark_orange'],
weight='bold',
)
# Print the table of offsets ontop of the graph below the original legend (upper right)
if len(offsets_table_data) > 0:
columns = ["", "Frequency delta", "Amplitude delta", ]
offset_table = ax.table(cellText=offsets_table_data, colLabels=columns, bbox=[0.66, 0.75, 0.33, 0.15], loc='upper right', cellLoc='center')
columns = [
'',
'Frequency delta',
'Amplitude delta',
]
offset_table = ax.table(
cellText=offsets_table_data,
colLabels=columns,
bbox=[0.66, 0.75, 0.33, 0.15],
loc='upper right',
cellLoc='center',
)
offset_table.auto_set_font_size(False)
offset_table.set_fontsize(8)
offset_table.auto_set_column_width([0, 1, 2])
@@ -306,19 +341,35 @@ def plot_compare_frequency(ax, lognames, signal1, signal2, similarity_factor, ma
def plot_difference_spectrogram(ax, signal1, signal2, t, bins, combined_divergent, textual_mhi, max_freq):
ax.set_title(f"Differential Spectrogram", fontsize=14, color=KLIPPAIN_COLORS['dark_orange'], weight='bold')
ax.set_title('Differential Spectrogram', fontsize=14, color=KLIPPAIN_COLORS['dark_orange'], weight='bold')
ax.plot([], [], ' ', label=f'{textual_mhi} (experimental)')
# Draw the differential spectrogram with a specific custom norm to get orange or purple values where there is signal or white near zeros
# imgshow is better suited here than pcolormesh since its result is already rasterized and we doesn't need to keep vector graphics
# when saving to a final .png file. Using it also allow to save ~150-200MB of RAM during the "fig.savefig" operation.
colors = [KLIPPAIN_COLORS['dark_orange'], KLIPPAIN_COLORS['orange'], 'white', KLIPPAIN_COLORS['purple'], KLIPPAIN_COLORS['dark_purple']]
cm = matplotlib.colors.LinearSegmentedColormap.from_list('klippain_divergent', list(zip([0, 0.25, 0.5, 0.75, 1], colors)))
colors = [
KLIPPAIN_COLORS['dark_orange'],
KLIPPAIN_COLORS['orange'],
'white',
KLIPPAIN_COLORS['purple'],
KLIPPAIN_COLORS['dark_purple'],
]
cm = matplotlib.colors.LinearSegmentedColormap.from_list(
'klippain_divergent', list(zip([0, 0.25, 0.5, 0.75, 1], colors))
)
norm = matplotlib.colors.TwoSlopeNorm(vmin=np.min(combined_divergent), vcenter=0, vmax=np.max(combined_divergent))
ax.imshow(combined_divergent.T, cmap=cm, norm=norm, aspect='auto', extent=[t[0], t[-1], bins[0], bins[-1]], interpolation='bilinear', origin='lower')
ax.imshow(
combined_divergent.T,
cmap=cm,
norm=norm,
aspect='auto',
extent=[t[0], t[-1], bins[0], bins[-1]],
interpolation='bilinear',
origin='lower',
)
ax.set_xlabel('Frequency (hz)')
ax.set_xlim([0., max_freq])
ax.set_xlim([0.0, max_freq])
ax.set_ylabel('Time (s)')
ax.set_ylim([0, bins[-1]])
@@ -330,18 +381,32 @@ def plot_difference_spectrogram(ax, signal1, signal2, t, bins, combined_divergen
unpaired_peak_count = 0
for _, peak in enumerate(signal1.unpaired_peaks):
ax.axvline(signal1.freqs[peak], color=KLIPPAIN_COLORS['red_pink'], linestyle='dotted', linewidth=1.5)
ax.annotate(f"Peak {unpaired_peak_count + 1}", (signal1.freqs[peak], t[-1]*0.05),
textcoords="data", color=KLIPPAIN_COLORS['red_pink'], rotation=90, fontsize=10,
verticalalignment='bottom', horizontalalignment='right')
unpaired_peak_count +=1
ax.annotate(
f'Peak {unpaired_peak_count + 1}',
(signal1.freqs[peak], t[-1] * 0.05),
textcoords='data',
color=KLIPPAIN_COLORS['red_pink'],
rotation=90,
fontsize=10,
verticalalignment='bottom',
horizontalalignment='right',
)
unpaired_peak_count += 1
for _, peak in enumerate(signal2.unpaired_peaks):
ax.axvline(signal2.freqs[peak], color=KLIPPAIN_COLORS['red_pink'], linestyle='dotted', linewidth=1.5)
ax.annotate(f"Peak {unpaired_peak_count + 1}", (signal2.freqs[peak], t[-1]*0.05),
textcoords="data", color=KLIPPAIN_COLORS['red_pink'], rotation=90, fontsize=10,
verticalalignment='bottom', horizontalalignment='right')
unpaired_peak_count +=1
ax.annotate(
f'Peak {unpaired_peak_count + 1}',
(signal2.freqs[peak], t[-1] * 0.05),
textcoords='data',
color=KLIPPAIN_COLORS['red_pink'],
rotation=90,
fontsize=10,
verticalalignment='bottom',
horizontalalignment='right',
)
unpaired_peak_count += 1
# Plot vertical lines and zones for paired peaks
for idx, (peak1, peak2) in enumerate(signal1.paired_peaks):
label = ALPHABET[idx]
@@ -350,20 +415,24 @@ def plot_difference_spectrogram(ax, signal1, signal2, t, bins, combined_divergen
ax.axvline(x_min, color=KLIPPAIN_COLORS['dark_purple'], linestyle='dotted', linewidth=1.5)
ax.axvline(x_max, color=KLIPPAIN_COLORS['dark_purple'], linestyle='dotted', linewidth=1.5)
ax.fill_between([x_min, x_max], 0, np.max(combined_divergent), color=KLIPPAIN_COLORS['dark_purple'], alpha=0.3)
ax.annotate(f"Peaks {label}", (x_min, t[-1]*0.05),
textcoords="data", color=KLIPPAIN_COLORS['dark_purple'], rotation=90, fontsize=10,
verticalalignment='bottom', horizontalalignment='right')
ax.annotate(
f'Peaks {label}',
(x_min, t[-1] * 0.05),
textcoords='data',
color=KLIPPAIN_COLORS['dark_purple'],
rotation=90,
fontsize=10,
verticalalignment='bottom',
horizontalalignment='right',
)
return
######################################################################
# Custom tools
# Custom tools
######################################################################
# Simple helper to compute a sigmoid scalling (from 0 to 100%)
def sigmoid_scale(x, k=1):
return 1 / (1 + np.exp(-k * x)) * 100
# Original Klipper function to get the PSD data of a raw accelerometer signal
def compute_signal_data(data, max_freq):
@@ -376,13 +445,14 @@ def compute_signal_data(data, max_freq):
_, peaks, _ = detect_peaks(psd, freqs, PEAKS_DETECTION_THRESHOLD * psd.max())
return SignalData(freqs=freqs, psd=psd, peaks=peaks, paired_peaks=None, unpaired_peaks=None)
######################################################################
# Startup and main routines
######################################################################
def belts_calibration(lognames, klipperdir="~/klipper", max_freq=200.):
def belts_calibration(lognames, klipperdir='~/klipper', max_freq=200.0, st_version=None):
set_locale()
global shaper_calibrate
shaper_calibrate = setup_klipper_import(klipperdir)
@@ -390,7 +460,7 @@ def belts_calibration(lognames, klipperdir="~/klipper", max_freq=200.):
# Parse data
datas = [parse_log(fn) for fn in lognames]
if len(datas) > 2:
raise ValueError("Incorrect number of .csv files used (this function needs exactly two files to compare them)!")
raise ValueError('Incorrect number of .csv files used (this function needs exactly two files to compare them)!')
# Compute calibration data for the two datasets with automatic peaks detection
signal1 = compute_signal_data(datas[0], max_freq)
@@ -399,55 +469,67 @@ def belts_calibration(lognames, klipperdir="~/klipper", max_freq=200.):
del datas
# Pair the peaks across the two datasets
paired_peaks, unpaired_peaks1, unpaired_peaks2 = pair_peaks(signal1.peaks, signal1.freqs, signal1.psd,
signal2.peaks, signal2.freqs, signal2.psd)
signal1 = signal1._replace(paired_peaks = paired_peaks, unpaired_peaks = unpaired_peaks1)
signal2 = signal2._replace(paired_peaks = paired_peaks, unpaired_peaks = unpaired_peaks2)
paired_peaks, unpaired_peaks1, unpaired_peaks2 = pair_peaks(
signal1.peaks, signal1.freqs, signal1.psd, signal2.peaks, signal2.freqs, signal2.psd
)
signal1 = signal1._replace(paired_peaks=paired_peaks, unpaired_peaks=unpaired_peaks1)
signal2 = signal2._replace(paired_peaks=paired_peaks, unpaired_peaks=unpaired_peaks2)
# Compute the similarity (using cross-correlation of the PSD signals)
similarity_factor = compute_curve_similarity_factor(signal1, signal2)
print_with_c_locale(f"Belts estimated similarity: {similarity_factor:.1f}%")
similarity_factor = compute_curve_similarity_factor(
signal1.freqs, signal1.psd, signal2.freqs, signal2.psd, CURVE_SIMILARITY_SIGMOID_K
)
print_with_c_locale(f'Belts estimated similarity: {similarity_factor:.1f}%')
# Compute the MHI value from the differential spectrogram sum of gradient, salted with the similarity factor and the number of
# unpaired peaks from the belts frequency profile. Be careful, this value is highly opinionated and is pretty experimental!
mhi, textual_mhi = compute_mhi(combined_sum, similarity_factor, len(signal1.unpaired_peaks) + len(signal2.unpaired_peaks))
print_with_c_locale(f"[experimental] Mechanical Health Indicator: {textual_mhi.lower()} ({mhi:.1f}%)")
mhi, textual_mhi = compute_mhi(
combined_sum, similarity_factor, len(signal1.unpaired_peaks) + len(signal2.unpaired_peaks)
)
print_with_c_locale(f'[experimental] Mechanical Health Indicator: {textual_mhi.lower()} ({mhi:.1f}%)')
# Create graph layout
fig, (ax1, ax2) = plt.subplots(2, 1, gridspec_kw={
'height_ratios':[4, 3],
'bottom':0.050,
'top':0.890,
'left':0.085,
'right':0.966,
'hspace':0.169,
'wspace':0.200
})
fig, (ax1, ax2) = plt.subplots(
2,
1,
gridspec_kw={
'height_ratios': [4, 3],
'bottom': 0.050,
'top': 0.890,
'left': 0.085,
'right': 0.966,
'hspace': 0.169,
'wspace': 0.200,
},
)
fig.set_size_inches(8.3, 11.6)
# Add title
title_line1 = "RELATIVE BELT CALIBRATION TOOL"
fig.text(0.12, 0.965, title_line1, ha='left', va='bottom', fontsize=20, color=KLIPPAIN_COLORS['purple'], weight='bold')
title_line1 = 'RELATIVE BELTS CALIBRATION TOOL'
fig.text(
0.12, 0.965, title_line1, ha='left', va='bottom', fontsize=20, color=KLIPPAIN_COLORS['purple'], weight='bold'
)
try:
filename = lognames[0].split('/')[-1]
dt = datetime.strptime(f"{filename.split('_')[1]} {filename.split('_')[2]}", "%Y%m%d %H%M%S")
dt = datetime.strptime(f"{filename.split('_')[1]} {filename.split('_')[2]}", '%Y%m%d %H%M%S')
title_line2 = dt.strftime('%x %X')
except:
print_with_c_locale("Warning: CSV filenames look to be different than expected (%s , %s)" % (lognames[0], lognames[1]))
title_line2 = lognames[0].split('/')[-1] + " / " + lognames[1].split('/')[-1]
except Exception:
print_with_c_locale(
'Warning: CSV filenames look to be different than expected (%s , %s)' % (lognames[0], lognames[1])
)
title_line2 = lognames[0].split('/')[-1] + ' / ' + lognames[1].split('/')[-1]
fig.text(0.12, 0.957, title_line2, ha='left', va='top', fontsize=16, color=KLIPPAIN_COLORS['dark_purple'])
# Plot the graphs
plot_compare_frequency(ax1, lognames, signal1, signal2, similarity_factor, max_freq)
plot_difference_spectrogram(ax2, signal1, signal2, t, bins, combined_divergent, textual_mhi, max_freq)
# Adding a small Klippain logo to the top left corner of the figure
ax_logo = fig.add_axes([0.001, 0.8995, 0.1, 0.1], anchor='NW')
ax_logo.imshow(plt.imread(os.path.join(os.path.dirname(os.path.abspath(__file__)), 'klippain.png')))
ax_logo.axis('off')
# Adding Shake&Tune version in the top right corner
st_version = get_git_version()
if st_version is not None:
if st_version != 'unknown':
fig.text(0.995, 0.985, st_version, ha='right', va='bottom', fontsize=8, color=KLIPPAIN_COLORS['purple'])
return fig
@@ -455,19 +537,18 @@ def belts_calibration(lognames, klipperdir="~/klipper", max_freq=200.):
def main():
# Parse command-line arguments
usage = "%prog [options] <raw logs>"
usage = '%prog [options] <raw logs>'
opts = optparse.OptionParser(usage)
opts.add_option("-o", "--output", type="string", dest="output",
default=None, help="filename of output graph")
opts.add_option("-f", "--max_freq", type="float", default=200.,
help="maximum frequency to graph")
opts.add_option("-k", "--klipper_dir", type="string", dest="klipperdir",
default="~/klipper", help="main klipper directory")
opts.add_option('-o', '--output', type='string', dest='output', default=None, help='filename of output graph')
opts.add_option('-f', '--max_freq', type='float', default=200.0, help='maximum frequency to graph')
opts.add_option(
'-k', '--klipper_dir', type='string', dest='klipperdir', default='~/klipper', help='main klipper directory'
)
options, args = opts.parse_args()
if len(args) < 1:
opts.error("Incorrect number of arguments")
opts.error('Incorrect number of arguments')
if options.output is None:
opts.error("You must specify an output file.png to use the script (option -o)")
opts.error('You must specify an output file.png to use the script (option -o)')
fig = belts_calibration(args, options.klipperdir, options.max_freq)
fig.savefig(options.output, dpi=150)

View File

@@ -6,25 +6,28 @@
# Derived from the calibrate_shaper.py official Klipper script
# Copyright (C) 2020 Dmitry Butyugin <dmbutyugin@google.com>
# Copyright (C) 2020 Kevin O'Connor <kevin@koconnor.net>
# Written by Frix_x#0161 #
# Highly modified and improved by Frix_x#0161 #
# Be sure to make this script executable using SSH: type 'chmod +x ./graph_shaper.py' when in the folder!
#####################################################################
################ !!! DO NOT EDIT BELOW THIS LINE !!! ################
#####################################################################
import optparse, matplotlib, os
import optparse
import os
from datetime import datetime
import numpy as np
import matplotlib
import matplotlib.font_manager
import matplotlib.pyplot as plt
import matplotlib.font_manager, matplotlib.ticker
import matplotlib.ticker
import numpy as np
matplotlib.use('Agg')
from locale_utils import set_locale, print_with_c_locale
from common_func import compute_mechanical_parameters, compute_spectrogram, detect_peaks, get_git_version, parse_log, setup_klipper_import
from ..helpers.common_func import (
compute_mechanical_parameters,
compute_spectrogram,
detect_peaks,
parse_log,
setup_klipper_import,
)
from ..helpers.locale_utils import print_with_c_locale, set_locale
PEAKS_DETECTION_THRESHOLD = 0.05
PEAKS_EFFECT_THRESHOLD = 0.12
@@ -32,9 +35,11 @@ SPECTROGRAM_LOW_PERCENTILE_FILTER = 5
MAX_SMOOTHING = 0.1
KLIPPAIN_COLORS = {
"purple": "#70088C",
"dark_purple": "#150140",
"dark_orange": "#F24130"
'purple': '#70088C',
'orange': '#FF8D32',
'dark_purple': '#150140',
'dark_orange': '#F24130',
'red_pink': '#F2055C',
}
@@ -42,32 +47,65 @@ KLIPPAIN_COLORS = {
# Computation
######################################################################
# Find the best shaper parameters using Klipper's official algorithm selection
def calibrate_shaper(datas, max_smoothing):
# Find the best shaper parameters using Klipper's official algorithm selection with
# a proper precomputed damping ratio (zeta) and using the configured printer SQV value
def calibrate_shaper(datas, max_smoothing, scv, max_freq):
helper = shaper_calibrate.ShaperCalibrate(printer=None)
calibration_data = helper.process_accelerometer_data(datas)
calibration_data.normalize_to_frequencies()
shaper, all_shapers = helper.find_best_shaper(calibration_data, max_smoothing, print_with_c_locale)
fr, zeta, _ = compute_mechanical_parameters(calibration_data.psd_sum, calibration_data.freq_bins)
fr, zeta, _, _ = compute_mechanical_parameters(calibration_data.psd_sum, calibration_data.freq_bins)
print_with_c_locale("Recommended shaper is %s @ %.1f Hz" % (shaper.name, shaper.freq))
print_with_c_locale("Axis has a main resonant frequency at %.1fHz with an estimated damping ratio of %.3f" % (fr, zeta))
# If the damping ratio computation fail, we use Klipper default value instead
if zeta is None:
zeta = 0.1
return shaper.name, all_shapers, calibration_data, fr, zeta
compat = False
try:
shaper, all_shapers = helper.find_best_shaper(
calibration_data,
shapers=None,
damping_ratio=zeta,
scv=scv,
shaper_freqs=None,
max_smoothing=max_smoothing,
test_damping_ratios=None,
max_freq=max_freq,
logger=print_with_c_locale,
)
except TypeError:
print_with_c_locale(
'[WARNING] You seem to be using an older version of Klipper that is not compatible with all the latest Shake&Tune features!'
)
print_with_c_locale(
'Shake&Tune now runs in compatibility mode: be aware that the results may be slightly off, since the real damping ratio cannot be used to create the filter recommendations'
)
compat = True
shaper, all_shapers = helper.find_best_shaper(calibration_data, max_smoothing, print_with_c_locale)
print_with_c_locale(
'\n-> Recommended shaper is %s @ %.1f Hz (when using a square corner velocity of %.1f and a damping ratio of %.3f)'
% (shaper.name.upper(), shaper.freq, scv, zeta)
)
return shaper.name, all_shapers, calibration_data, fr, zeta, compat
######################################################################
# Graphing
######################################################################
def plot_freq_response(ax, calibration_data, shapers, performance_shaper, peaks, peaks_freqs, peaks_threshold, fr, zeta, max_freq):
def plot_freq_response(
ax, calibration_data, shapers, performance_shaper, peaks, peaks_freqs, peaks_threshold, fr, zeta, max_freq
):
freqs = calibration_data.freqs
psd = calibration_data.psd_sum
px = calibration_data.psd_x
py = calibration_data.psd_y
pz = calibration_data.psd_z
fontP = matplotlib.font_manager.FontProperties()
fontP.set_size('x-small')
@@ -83,36 +121,42 @@ def plot_freq_response(ax, calibration_data, shapers, performance_shaper, peaks,
ax.xaxis.set_minor_locator(matplotlib.ticker.MultipleLocator(5))
ax.yaxis.set_minor_locator(matplotlib.ticker.AutoMinorLocator())
ax.ticklabel_format(axis='y', style='scientific', scilimits=(0,0))
ax.ticklabel_format(axis='y', style='scientific', scilimits=(0, 0))
ax.grid(which='major', color='grey')
ax.grid(which='minor', color='lightgrey')
ax2 = ax.twinx()
ax2.yaxis.set_visible(False)
lowvib_shaper_vibrs = float('inf')
lowvib_shaper = None
lowvib_shaper_freq = None
lowvib_shaper_accel = 0
# Draw the shappers curves and add their specific parameters in the legend
# This adds also a way to find the best shaper with a low level of vibrations (with a resonable level of smoothing)
for shaper in shapers:
shaper_max_accel = round(shaper.max_accel / 100.) * 100.
label = "%s (%.1f Hz, vibr=%.1f%%, sm~=%.2f, accel<=%.f)" % (
shaper.name.upper(), shaper.freq,
shaper.vibrs * 100., shaper.smoothing,
shaper_max_accel)
shaper_max_accel = round(shaper.max_accel / 100.0) * 100.0
label = '%s (%.1f Hz, vibr=%.1f%%, sm~=%.2f, accel<=%.f)' % (
shaper.name.upper(),
shaper.freq,
shaper.vibrs * 100.0,
shaper.smoothing,
shaper_max_accel,
)
ax2.plot(freqs, shaper.vals, label=label, linestyle='dotted')
# Get the performance shaper
if shaper.name == performance_shaper:
performance_shaper_freq = shaper.freq
performance_shaper_vibr = shaper.vibrs * 100.
performance_shaper_vibr = shaper.vibrs * 100.0
performance_shaper_vals = shaper.vals
# Get the low vibration shaper
if (shaper.vibrs * 100 < lowvib_shaper_vibrs or (shaper.vibrs * 100 == lowvib_shaper_vibrs and shaper_max_accel > lowvib_shaper_accel)) and shaper.smoothing < MAX_SMOOTHING:
if (
shaper.vibrs * 100 < lowvib_shaper_vibrs
or (shaper.vibrs * 100 == lowvib_shaper_vibrs and shaper_max_accel > lowvib_shaper_accel)
) and shaper.smoothing < MAX_SMOOTHING:
lowvib_shaper_accel = shaper_max_accel
lowvib_shaper = shaper.name
lowvib_shaper_freq = shaper.freq
@@ -123,21 +167,45 @@ def plot_freq_response(ax, calibration_data, shapers, performance_shaper, peaks,
# and the other one is the custom "low vibration" recommendation that looks for a suitable shaper that doesn't have excessive
# smoothing and that have a lower vibration level. If both recommendation are the same shaper, or if no suitable "low
# vibration" shaper is found, then only a single line as the "best shaper" recommendation is added to the legend
if lowvib_shaper != None and lowvib_shaper != performance_shaper and lowvib_shaper_vibrs <= performance_shaper_vibr:
ax2.plot([], [], ' ', label="Recommended performance shaper: %s @ %.1f Hz" % (performance_shaper.upper(), performance_shaper_freq))
ax.plot(freqs, psd * performance_shaper_vals, label='With %s applied' % (performance_shaper.upper()), color='cyan')
ax2.plot([], [], ' ', label="Recommended low vibrations shaper: %s @ %.1f Hz" % (lowvib_shaper.upper(), lowvib_shaper_freq))
if (
lowvib_shaper is not None
and lowvib_shaper != performance_shaper
and lowvib_shaper_vibrs <= performance_shaper_vibr
):
ax2.plot(
[],
[],
' ',
label='Recommended performance shaper: %s @ %.1f Hz'
% (performance_shaper.upper(), performance_shaper_freq),
)
ax.plot(
freqs, psd * performance_shaper_vals, label='With %s applied' % (performance_shaper.upper()), color='cyan'
)
ax2.plot(
[],
[],
' ',
label='Recommended low vibrations shaper: %s @ %.1f Hz' % (lowvib_shaper.upper(), lowvib_shaper_freq),
)
ax.plot(freqs, psd * lowvib_shaper_vals, label='With %s applied' % (lowvib_shaper.upper()), color='lime')
else:
ax2.plot([], [], ' ', label="Recommended best shaper: %s @ %.1f Hz" % (performance_shaper.upper(), performance_shaper_freq))
ax.plot(freqs, psd * performance_shaper_vals, label='With %s applied' % (performance_shaper.upper()), color='cyan')
ax2.plot(
[],
[],
' ',
label='Recommended best shaper: %s @ %.1f Hz' % (performance_shaper.upper(), performance_shaper_freq),
)
ax.plot(
freqs, psd * performance_shaper_vals, label='With %s applied' % (performance_shaper.upper()), color='cyan'
)
# And the estimated damping ratio is finally added at the end of the legend
ax2.plot([], [], ' ', label="Estimated damping ratio (ζ): %.3f" % (zeta))
ax2.plot([], [], ' ', label='Estimated damping ratio (ζ): %.3f' % (zeta))
# Draw the detected peaks and name them
# This also draw the detection threshold and warning threshold (aka "effect zone")
ax.plot(peaks_freqs, psd[peaks], "x", color='black', markersize=8)
ax.plot(peaks_freqs, psd[peaks], 'x', color='black', markersize=8)
for idx, peak in enumerate(peaks):
if psd[peak] > peaks_threshold[1]:
fontcolor = 'red'
@@ -145,16 +213,28 @@ def plot_freq_response(ax, calibration_data, shapers, performance_shaper, peaks,
else:
fontcolor = 'black'
fontweight = 'normal'
ax.annotate(f"{idx+1}", (freqs[peak], psd[peak]),
textcoords="offset points", xytext=(8, 5),
ha='left', fontsize=13, color=fontcolor, weight=fontweight)
ax.annotate(
f'{idx+1}',
(freqs[peak], psd[peak]),
textcoords='offset points',
xytext=(8, 5),
ha='left',
fontsize=13,
color=fontcolor,
weight=fontweight,
)
ax.axhline(y=peaks_threshold[0], color='black', linestyle='--', linewidth=0.5)
ax.axhline(y=peaks_threshold[1], color='black', linestyle='--', linewidth=0.5)
ax.fill_between(freqs, 0, peaks_threshold[0], color='green', alpha=0.15, label='Relax Region')
ax.fill_between(freqs, peaks_threshold[0], peaks_threshold[1], color='orange', alpha=0.2, label='Warning Region')
# Add the main resonant frequency and damping ratio of the axis to the graph title
ax.set_title("Axis Frequency Profile (ω0=%.1fHz, ζ=%.3f)" % (fr, zeta), fontsize=14, color=KLIPPAIN_COLORS['dark_orange'], weight='bold')
ax.set_title(
'Axis Frequency Profile (ω0=%.1fHz, ζ=%.3f)' % (fr, zeta),
fontsize=14,
color=KLIPPAIN_COLORS['dark_orange'],
weight='bold',
)
ax.legend(loc='upper left', prop=fontP)
ax2.legend(loc='upper right', prop=fontP)
@@ -164,8 +244,8 @@ def plot_freq_response(ax, calibration_data, shapers, performance_shaper, peaks,
# Plot a time-frequency spectrogram to see how the system respond over time during the
# resonnance test. This can highlight hidden spots from the standard PSD graph from other harmonics
def plot_spectrogram(ax, t, bins, pdata, peaks, max_freq):
ax.set_title("Time-Frequency Spectrogram", fontsize=14, color=KLIPPAIN_COLORS['dark_orange'], weight='bold')
ax.set_title('Time-Frequency Spectrogram', fontsize=14, color=KLIPPAIN_COLORS['dark_orange'], weight='bold')
# We need to normalize the data to get a proper signal on the spectrogram
# However, while using "LogNorm" provide too much background noise, using
# "Normalize" make only the resonnance appearing and hide interesting elements
@@ -177,19 +257,34 @@ def plot_spectrogram(ax, t, bins, pdata, peaks, max_freq):
# save ~150-200MB of RAM during the "fig.savefig" operation.
cm = 'inferno'
norm = matplotlib.colors.LogNorm(vmin=vmin_value)
ax.imshow(pdata.T, norm=norm, cmap=cm, aspect='auto', extent=[t[0], t[-1], bins[0], bins[-1]], origin='lower', interpolation='antialiased')
ax.imshow(
pdata.T,
norm=norm,
cmap=cm,
aspect='auto',
extent=[t[0], t[-1], bins[0], bins[-1]],
origin='lower',
interpolation='antialiased',
)
ax.set_xlim([0., max_freq])
ax.set_xlim([0.0, max_freq])
ax.set_ylabel('Time (s)')
ax.set_xlabel('Frequency (Hz)')
# Add peaks lines in the spectrogram to get hint from peaks found in the first graph
if peaks is not None:
for idx, peak in enumerate(peaks):
ax.axvline(peak, color='cyan', linestyle='dotted', linewidth=1)
ax.annotate(f"Peak {idx+1}", (peak, bins[-1]*0.9),
textcoords="data", color='cyan', rotation=90, fontsize=10,
verticalalignment='top', horizontalalignment='right')
ax.annotate(
f'Peak {idx+1}',
(peak, bins[-1] * 0.9),
textcoords='data',
color='cyan',
rotation=90,
fontsize=10,
verticalalignment='top',
horizontalalignment='right',
)
return
@@ -198,7 +293,8 @@ def plot_spectrogram(ax, t, bins, pdata, peaks, max_freq):
# Startup and main routines
######################################################################
def shaper_calibration(lognames, klipperdir="~/klipper", max_smoothing=None, max_freq=200.):
def shaper_calibration(lognames, klipperdir='~/klipper', max_smoothing=None, scv=5.0, max_freq=200.0, st_version=None):
set_locale()
global shaper_calibrate
shaper_calibrate = setup_klipper_import(klipperdir)
@@ -206,10 +302,12 @@ def shaper_calibration(lognames, klipperdir="~/klipper", max_smoothing=None, max
# Parse data
datas = [parse_log(fn) for fn in lognames]
if len(datas) > 1:
print_with_c_locale("Warning: incorrect number of .csv files detected. Only the first one will be used!")
print_with_c_locale('Warning: incorrect number of .csv files detected. Only the first one will be used!')
# Compute shapers, PSD outputs and spectrogram
performance_shaper, shapers, calibration_data, fr, zeta = calibrate_shaper(datas[0], max_smoothing)
performance_shaper, shapers, calibration_data, fr, zeta, compat = calibrate_shaper(
datas[0], max_smoothing, scv, max_freq
)
pdata, bins, t = compute_spectrogram(datas[0])
del datas
@@ -224,41 +322,62 @@ def shaper_calibration(lognames, klipperdir="~/klipper", max_smoothing=None, max
# Peak detection algorithm
peaks_threshold = [
PEAKS_DETECTION_THRESHOLD * calibration_data.psd_sum.max(),
PEAKS_EFFECT_THRESHOLD * calibration_data.psd_sum.max()
PEAKS_EFFECT_THRESHOLD * calibration_data.psd_sum.max(),
]
num_peaks, peaks, peaks_freqs = detect_peaks(calibration_data.psd_sum, calibration_data.freqs, peaks_threshold[0])
# Print the peaks info in the console
peak_freqs_formated = ["{:.1f}".format(f) for f in peaks_freqs]
peak_freqs_formated = ['{:.1f}'.format(f) for f in peaks_freqs]
num_peaks_above_effect_threshold = np.sum(calibration_data.psd_sum[peaks] > peaks_threshold[1])
print_with_c_locale("Peaks detected on the graph: %d @ %s Hz (%d above effect threshold)" % (num_peaks, ", ".join(map(str, peak_freqs_formated)), num_peaks_above_effect_threshold))
print_with_c_locale(
'\nPeaks detected on the graph: %d @ %s Hz (%d above effect threshold)'
% (num_peaks, ', '.join(map(str, peak_freqs_formated)), num_peaks_above_effect_threshold)
)
# Create graph layout
fig, (ax1, ax2) = plt.subplots(2, 1, gridspec_kw={
'height_ratios':[4, 3],
'bottom':0.050,
'top':0.890,
'left':0.085,
'right':0.966,
'hspace':0.169,
'wspace':0.200
})
fig, (ax1, ax2) = plt.subplots(
2,
1,
gridspec_kw={
'height_ratios': [4, 3],
'bottom': 0.050,
'top': 0.890,
'left': 0.085,
'right': 0.966,
'hspace': 0.169,
'wspace': 0.200,
},
)
fig.set_size_inches(8.3, 11.6)
# Add title
title_line1 = "INPUT SHAPER CALIBRATION TOOL"
fig.text(0.12, 0.965, title_line1, ha='left', va='bottom', fontsize=20, color=KLIPPAIN_COLORS['purple'], weight='bold')
# Add a title with some test info
title_line1 = 'INPUT SHAPER CALIBRATION TOOL'
fig.text(
0.12, 0.965, title_line1, ha='left', va='bottom', fontsize=20, color=KLIPPAIN_COLORS['purple'], weight='bold'
)
try:
filename_parts = (lognames[0].split('/')[-1]).split('_')
dt = datetime.strptime(f"{filename_parts[1]} {filename_parts[2]}", "%Y%m%d %H%M%S")
dt = datetime.strptime(f'{filename_parts[1]} {filename_parts[2]}', '%Y%m%d %H%M%S')
title_line2 = dt.strftime('%x %X') + ' -- ' + filename_parts[3].upper().split('.')[0] + ' axis'
except:
print_with_c_locale("Warning: CSV filename look to be different than expected (%s)" % (lognames[0]))
if compat:
title_line3 = '| Compatibility mode with older Klipper,'
title_line4 = '| and no custom S&T parameters are used!'
else:
title_line3 = '| Square corner velocity: ' + str(scv) + 'mm/s'
title_line4 = '| Max allowed smoothing: ' + str(max_smoothing)
except Exception:
print_with_c_locale('Warning: CSV filename look to be different than expected (%s)' % (lognames[0]))
title_line2 = lognames[0].split('/')[-1]
title_line3 = ''
title_line4 = ''
fig.text(0.12, 0.957, title_line2, ha='left', va='top', fontsize=16, color=KLIPPAIN_COLORS['dark_purple'])
fig.text(0.58, 0.960, title_line3, ha='left', va='top', fontsize=10, color=KLIPPAIN_COLORS['dark_purple'])
fig.text(0.58, 0.946, title_line4, ha='left', va='top', fontsize=10, color=KLIPPAIN_COLORS['dark_purple'])
# Plot the graphs
plot_freq_response(ax1, calibration_data, shapers, performance_shaper, peaks, peaks_freqs, peaks_threshold, fr, zeta, max_freq)
plot_freq_response(
ax1, calibration_data, shapers, performance_shaper, peaks, peaks_freqs, peaks_threshold, fr, zeta, max_freq
)
plot_spectrogram(ax2, t, bins, pdata, peaks_freqs, max_freq)
# Adding a small Klippain logo to the top left corner of the figure
@@ -267,8 +386,7 @@ def shaper_calibration(lognames, klipperdir="~/klipper", max_smoothing=None, max
ax_logo.axis('off')
# Adding Shake&Tune version in the top right corner
st_version = get_git_version()
if st_version is not None:
if st_version != 'unknown':
fig.text(0.995, 0.985, st_version, ha='right', va='bottom', fontsize=8, color=KLIPPAIN_COLORS['purple'])
return fig
@@ -276,25 +394,26 @@ def shaper_calibration(lognames, klipperdir="~/klipper", max_smoothing=None, max
def main():
# Parse command-line arguments
usage = "%prog [options] <logs>"
usage = '%prog [options] <logs>'
opts = optparse.OptionParser(usage)
opts.add_option("-o", "--output", type="string", dest="output",
default=None, help="filename of output graph")
opts.add_option("-f", "--max_freq", type="float", default=200.,
help="maximum frequency to graph")
opts.add_option("-s", "--max_smoothing", type="float", default=None,
help="maximum shaper smoothing to allow")
opts.add_option("-k", "--klipper_dir", type="string", dest="klipperdir",
default="~/klipper", help="main klipper directory")
opts.add_option('-o', '--output', type='string', dest='output', default=None, help='filename of output graph')
opts.add_option('-f', '--max_freq', type='float', default=200.0, help='maximum frequency to graph')
opts.add_option('-s', '--max_smoothing', type='float', default=None, help='maximum shaper smoothing to allow')
opts.add_option(
'--scv', '--square_corner_velocity', type='float', dest='scv', default=5.0, help='square corner velocity'
)
opts.add_option(
'-k', '--klipper_dir', type='string', dest='klipperdir', default='~/klipper', help='main klipper directory'
)
options, args = opts.parse_args()
if len(args) < 1:
opts.error("Incorrect number of arguments")
opts.error('Incorrect number of arguments')
if options.output is None:
opts.error("You must specify an output file.png to use the script (option -o)")
opts.error('You must specify an output file.png to use the script (option -o)')
if options.max_smoothing is not None and options.max_smoothing < 0.05:
opts.error("Too small max_smoothing specified (must be at least 0.05)")
opts.error('Too small max_smoothing specified (must be at least 0.05)')
fig = shaper_calibration(args, options.klipperdir, options.max_smoothing, options.max_freq)
fig = shaper_calibration(args, options.klipperdir, options.max_smoothing, options.scv, options.max_freq)
fig.savefig(options.output, dpi=150)

View File

@@ -0,0 +1,840 @@
#!/usr/bin/env python3
##################################################
#### DIRECTIONAL VIBRATIONS PLOTTING SCRIPT ######
##################################################
# Written by Frix_x#0161 #
import math
import optparse
import os
import re
from collections import defaultdict
from datetime import datetime
import matplotlib
import matplotlib.font_manager
import matplotlib.gridspec
import matplotlib.pyplot as plt
import matplotlib.ticker
import numpy as np
matplotlib.use('Agg')
from ..helpers.common_func import (
compute_mechanical_parameters,
detect_peaks,
identify_low_energy_zones,
parse_log,
setup_klipper_import,
)
from ..helpers.locale_utils import print_with_c_locale, set_locale
PEAKS_DETECTION_THRESHOLD = 0.05
PEAKS_RELATIVE_HEIGHT_THRESHOLD = 0.04
CURVE_SIMILARITY_SIGMOID_K = 0.5
SPEEDS_VALLEY_DETECTION_THRESHOLD = 0.7 # Lower is more sensitive
SPEEDS_AROUND_PEAK_DELETION = 3 # to delete +-3mm/s around a peak
ANGLES_VALLEY_DETECTION_THRESHOLD = 1.1 # Lower is more sensitive
KLIPPAIN_COLORS = {
'purple': '#70088C',
'orange': '#FF8D32',
'dark_purple': '#150140',
'dark_orange': '#F24130',
'red_pink': '#F2055C',
}
######################################################################
# Computation
######################################################################
# Call to the official Klipper input shaper object to do the PSD computation
def calc_freq_response(data):
helper = shaper_calibrate.ShaperCalibrate(printer=None)
return helper.process_accelerometer_data(data)
# Calculate motor frequency profiles based on the measured Power Spectral Density (PSD) measurements for the machine kinematics
# main angles and then create a global motor profile as a weighted average (from their own vibrations) of all calculated profiles
def compute_motor_profiles(freqs, psds, all_angles_energy, measured_angles=None, energy_amplification_factor=2):
if measured_angles is None:
measured_angles = [0, 90]
motor_profiles = {}
weighted_sum_profiles = np.zeros_like(freqs)
total_weight = 0
conv_filter = np.ones(20) / 20
# Creating the PSD motor profiles for each angles
for angle in measured_angles:
# Calculate the sum of PSDs for the current angle and then convolve
sum_curve = np.sum(np.array([psds[angle][speed] for speed in psds[angle]]), axis=0)
motor_profiles[angle] = np.convolve(sum_curve / len(psds[angle]), conv_filter, mode='same')
# Calculate weights
angle_energy = (
all_angles_energy[angle] ** energy_amplification_factor
) # First weighting factor is based on the total vibrations of the machine at the specified angle
curve_area = (
np.trapz(motor_profiles[angle], freqs) ** energy_amplification_factor
) # Additional weighting factor is based on the area under the current motor profile at this specified angle
total_angle_weight = angle_energy * curve_area
# Update weighted sum profiles to get the global motor profile
weighted_sum_profiles += motor_profiles[angle] * total_angle_weight
total_weight += total_angle_weight
# Creating a global average motor profile that is the weighted average of all the PSD motor profiles
global_motor_profile = weighted_sum_profiles / total_weight if total_weight != 0 else weighted_sum_profiles
return motor_profiles, global_motor_profile
# Since it was discovered that there is no non-linear mixing in the stepper "steps" vibrations, instead of measuring
# the effects of each speeds at each angles, this function simplify it by using only the main motors axes (X/Y for Cartesian
# printers and A/B for CoreXY) measurements and project each points on the [0,360] degrees range using trigonometry
# to "sum" the vibration impact of each axis at every points of the generated spectrogram. The result is very similar at the end.
def compute_dir_speed_spectrogram(measured_speeds, data, kinematics='cartesian', measured_angles=None):
if measured_angles is None:
measured_angles = [0, 90]
# We want to project the motor vibrations measured on their own axes on the [0, 360] range
spectrum_angles = np.linspace(0, 360, 720) # One point every 0.5 degrees
spectrum_speeds = np.linspace(min(measured_speeds), max(measured_speeds), len(measured_speeds) * 6)
spectrum_vibrations = np.zeros((len(spectrum_angles), len(spectrum_speeds)))
def get_interpolated_vibrations(data, speed, speeds):
idx = np.clip(np.searchsorted(speeds, speed, side='left'), 1, len(speeds) - 1)
lower_speed = speeds[idx - 1]
upper_speed = speeds[idx]
lower_vibrations = data.get(lower_speed, 0)
upper_vibrations = data.get(upper_speed, 0)
return lower_vibrations + (speed - lower_speed) * (upper_vibrations - lower_vibrations) / (
upper_speed - lower_speed
)
# Precompute trigonometric values and constant before the loop
angle_radians = np.deg2rad(spectrum_angles)
cos_vals = np.cos(angle_radians)
sin_vals = np.sin(angle_radians)
sqrt_2_inv = 1 / math.sqrt(2)
# Compute the spectrum vibrations for each angle and speed combination
for target_angle_idx, (cos_val, sin_val) in enumerate(zip(cos_vals, sin_vals)):
for target_speed_idx, target_speed in enumerate(spectrum_speeds):
if kinematics == 'cartesian':
speed_1 = np.abs(target_speed * cos_val)
speed_2 = np.abs(target_speed * sin_val)
elif kinematics == 'corexy':
speed_1 = np.abs(target_speed * (cos_val + sin_val) * sqrt_2_inv)
speed_2 = np.abs(target_speed * (cos_val - sin_val) * sqrt_2_inv)
vibrations_1 = get_interpolated_vibrations(data[measured_angles[0]], speed_1, measured_speeds)
vibrations_2 = get_interpolated_vibrations(data[measured_angles[1]], speed_2, measured_speeds)
spectrum_vibrations[target_angle_idx, target_speed_idx] = vibrations_1 + vibrations_2
return spectrum_angles, spectrum_speeds, spectrum_vibrations
def compute_angle_powers(spectrogram_data):
angles_powers = np.trapz(spectrogram_data, axis=1)
# Since we want to plot it on a continuous polar plot later on, we need to append parts of
# the array to start and end of it to smooth transitions when doing the convolution
# and get the same value at modulo 360. Then we return the array without the extras
extended_angles_powers = np.concatenate([angles_powers[-9:], angles_powers, angles_powers[:9]])
convolved_extended = np.convolve(extended_angles_powers, np.ones(15) / 15, mode='same')
return convolved_extended[9:-9]
def compute_speed_powers(spectrogram_data, smoothing_window=15):
min_values = np.amin(spectrogram_data, axis=0)
max_values = np.amax(spectrogram_data, axis=0)
var_values = np.var(spectrogram_data, axis=0)
# rescale the variance to the same range as max_values to plot it on the same graph
var_values = var_values / var_values.max() * max_values.max()
# Create a vibration metric that is the product of the max values and the variance to quantify the best
# speeds that have at the same time a low global energy level that is also consistent at every angles
vibration_metric = max_values * var_values
# utility function to pad and smooth the data avoiding edge effects
conv_filter = np.ones(smoothing_window) / smoothing_window
window = int(smoothing_window / 2)
def pad_and_smooth(data):
data_padded = np.pad(data, (window,), mode='edge')
smoothed_data = np.convolve(data_padded, conv_filter, mode='valid')
return smoothed_data
# Stack the arrays and apply padding and smoothing in batch
data_arrays = np.stack([min_values, max_values, var_values, vibration_metric])
smoothed_arrays = np.array([pad_and_smooth(data) for data in data_arrays])
return smoothed_arrays
# Function that filter and split the good_speed ranges. The goal is to remove some zones around
# additional detected small peaks in order to suppress them if there is a peak, even if it's low,
# that's probably due to a crossing in the motor resonance pattern that still need to be removed
def filter_and_split_ranges(all_speeds, good_speeds, peak_speed_indices, deletion_range):
# Process each range to filter out and split based on peak indices
filtered_good_speeds = []
for start, end, energy in good_speeds:
start_speed, end_speed = all_speeds[start], all_speeds[end]
# Identify peaks that intersect with the current speed range
intersecting_peaks_indices = [
idx for speed, idx in peak_speed_indices.items() if start_speed <= speed <= end_speed
]
if not intersecting_peaks_indices:
filtered_good_speeds.append((start, end, energy))
else:
intersecting_peaks_indices.sort()
current_start = start
for peak_index in intersecting_peaks_indices:
before_peak_end = max(current_start, peak_index - deletion_range)
if current_start < before_peak_end:
filtered_good_speeds.append((current_start, before_peak_end, energy))
current_start = peak_index + deletion_range + 1
if current_start < end:
filtered_good_speeds.append((current_start, end, energy))
# Sorting by start point once and then merge overlapping ranges
sorted_ranges = sorted(filtered_good_speeds, key=lambda x: x[0])
merged_ranges = [sorted_ranges[0]]
for current in sorted_ranges[1:]:
last_merged_start, last_merged_end, last_merged_energy = merged_ranges[-1]
if current[0] <= last_merged_end:
new_end = max(last_merged_end, current[1])
new_energy = min(last_merged_energy, current[2])
merged_ranges[-1] = (last_merged_start, new_end, new_energy)
else:
merged_ranges.append(current)
return merged_ranges
# This function allow the computation of a symmetry score that reflect the spectrogram apparent symmetry between
# measured axes on both the shape of the signal and the energy level consistency across both side of the signal
def compute_symmetry_analysis(all_angles, spectrogram_data, measured_angles=None):
if measured_angles is None:
measured_angles = [0, 90]
total_spectrogram_angles = len(all_angles)
half_spectrogram_angles = total_spectrogram_angles // 2
# Extend the spectrogram by adding half to the beginning (in order to not get an out of bounds error later)
extended_spectrogram = np.concatenate((spectrogram_data[-half_spectrogram_angles:], spectrogram_data), axis=0)
# Calculate the split index directly within the slicing
midpoint_angle = np.mean(measured_angles)
split_index = int(midpoint_angle * (total_spectrogram_angles / 360) + half_spectrogram_angles)
half_segment_length = half_spectrogram_angles // 2
# Slice out the two segments of the spectrogram and flatten them for comparison
segment_1_flattened = extended_spectrogram[split_index - half_segment_length : split_index].flatten()
segment_2_flattened = extended_spectrogram[split_index : split_index + half_segment_length].flatten()
# Compute the correlation coefficient between the two segments of spectrogram
correlation = np.corrcoef(segment_1_flattened, segment_2_flattened)[0, 1]
percentage_correlation_biased = (100 * np.power(correlation, 0.75)) + 10
return np.clip(0, 100, percentage_correlation_biased)
######################################################################
# Graphing
######################################################################
def plot_angle_profile_polar(ax, angles, angles_powers, low_energy_zones, symmetry_factor):
angles_radians = np.deg2rad(angles)
ax.set_title('Polar angle energy profile', fontsize=14, color=KLIPPAIN_COLORS['dark_orange'], weight='bold')
ax.set_theta_zero_location('E')
ax.set_theta_direction(1)
ax.plot(angles_radians, angles_powers, color=KLIPPAIN_COLORS['purple'], zorder=5)
ax.fill(angles_radians, angles_powers, color=KLIPPAIN_COLORS['purple'], alpha=0.3)
ax.set_xlim([0, np.deg2rad(360)])
ymax = angles_powers.max() * 1.05
ax.set_ylim([0, ymax])
ax.set_thetagrids([theta * 15 for theta in range(360 // 15)])
ax.text(
0,
0,
f'Symmetry: {symmetry_factor:.1f}%',
ha='center',
va='center',
color=KLIPPAIN_COLORS['red_pink'],
fontsize=12,
fontweight='bold',
zorder=6,
)
for _, (start, end, _) in enumerate(low_energy_zones):
ax.axvline(
angles_radians[start],
angles_powers[start] / ymax,
color=KLIPPAIN_COLORS['red_pink'],
linestyle='dotted',
linewidth=1.5,
)
ax.axvline(
angles_radians[end],
angles_powers[end] / ymax,
color=KLIPPAIN_COLORS['red_pink'],
linestyle='dotted',
linewidth=1.5,
)
ax.fill_between(
angles_radians[start:end], angles_powers[start:end], angles_powers.max() * 1.05, color='green', alpha=0.2
)
ax.xaxis.set_minor_locator(matplotlib.ticker.AutoMinorLocator())
ax.yaxis.set_minor_locator(matplotlib.ticker.AutoMinorLocator())
ax.grid(which='major', color='grey')
ax.grid(which='minor', color='lightgrey')
# Polar plot doesn't follow the gridspec margin, so we adjust it manually here
pos = ax.get_position()
new_pos = [pos.x0 - 0.01, pos.y0 - 0.01, pos.width, pos.height]
ax.set_position(new_pos)
return
def plot_global_speed_profile(
ax,
all_speeds,
sp_min_energy,
sp_max_energy,
sp_variance_energy,
vibration_metric,
num_peaks,
peaks,
low_energy_zones,
):
ax.set_title('Global speed energy profile', fontsize=14, color=KLIPPAIN_COLORS['dark_orange'], weight='bold')
ax.set_xlabel('Speed (mm/s)')
ax.set_ylabel('Energy')
ax2 = ax.twinx()
ax2.yaxis.set_visible(False)
ax.plot(all_speeds, sp_min_energy, label='Minimum', color=KLIPPAIN_COLORS['dark_purple'], zorder=5)
ax.plot(all_speeds, sp_max_energy, label='Maximum', color=KLIPPAIN_COLORS['purple'], zorder=5)
ax.plot(all_speeds, sp_variance_energy, label='Variance', color=KLIPPAIN_COLORS['orange'], zorder=5, linestyle='--')
ax2.plot(
all_speeds,
vibration_metric,
label=f'Vibration metric ({num_peaks} bad peaks)',
color=KLIPPAIN_COLORS['red_pink'],
zorder=5,
)
ax.set_xlim([all_speeds.min(), all_speeds.max()])
ax.set_ylim([0, sp_max_energy.max() * 1.15])
y2min = -(vibration_metric.max() * 0.025)
y2max = vibration_metric.max() * 1.07
ax2.set_ylim([y2min, y2max])
if peaks is not None and len(peaks) > 0:
ax2.plot(all_speeds[peaks], vibration_metric[peaks], 'x', color='black', markersize=8, zorder=10)
for idx, peak in enumerate(peaks):
ax2.annotate(
f'{idx+1}',
(all_speeds[peak], vibration_metric[peak]),
textcoords='offset points',
xytext=(5, 5),
fontweight='bold',
ha='left',
fontsize=13,
color=KLIPPAIN_COLORS['red_pink'],
zorder=10,
)
for idx, (start, end, _) in enumerate(low_energy_zones):
# ax2.axvline(all_speeds[start], color=KLIPPAIN_COLORS['red_pink'], linestyle='dotted', linewidth=1.5, zorder=8)
# ax2.axvline(all_speeds[end], color=KLIPPAIN_COLORS['red_pink'], linestyle='dotted', linewidth=1.5, zorder=8)
ax2.fill_between(
all_speeds[start:end],
y2min,
vibration_metric[start:end],
color='green',
alpha=0.2,
label=f'Zone {idx+1}: {all_speeds[start]:.1f} to {all_speeds[end]:.1f} mm/s',
)
ax.xaxis.set_minor_locator(matplotlib.ticker.AutoMinorLocator())
ax.yaxis.set_minor_locator(matplotlib.ticker.AutoMinorLocator())
ax.grid(which='major', color='grey')
ax.grid(which='minor', color='lightgrey')
fontP = matplotlib.font_manager.FontProperties()
fontP.set_size('small')
ax.legend(loc='upper left', prop=fontP)
ax2.legend(loc='upper right', prop=fontP)
return
def plot_angular_speed_profiles(ax, speeds, angles, spectrogram_data, kinematics='cartesian'):
ax.set_title('Angular speed energy profiles', fontsize=14, color=KLIPPAIN_COLORS['dark_orange'], weight='bold')
ax.set_xlabel('Speed (mm/s)')
ax.set_ylabel('Energy')
# Define mappings for labels and colors to simplify plotting commands
angle_settings = {
0: ('X (0 deg)', 'purple', 10),
90: ('Y (90 deg)', 'dark_purple', 5),
45: ('A (45 deg)' if kinematics == 'corexy' else '45 deg', 'orange', 10),
135: ('B (135 deg)' if kinematics == 'corexy' else '135 deg', 'dark_orange', 5),
}
# Plot each angle using settings from the dictionary
for angle, (label, color, zorder) in angle_settings.items():
idx = np.searchsorted(angles, angle, side='left')
ax.plot(speeds, spectrogram_data[idx], label=label, color=KLIPPAIN_COLORS[color], zorder=zorder)
ax.set_xlim([speeds.min(), speeds.max()])
max_value = max(spectrogram_data[angle].max() for angle in [0, 45, 90, 135])
ax.set_ylim([0, max_value * 1.1])
ax.xaxis.set_minor_locator(matplotlib.ticker.AutoMinorLocator())
ax.yaxis.set_minor_locator(matplotlib.ticker.AutoMinorLocator())
ax.grid(which='major', color='grey')
ax.grid(which='minor', color='lightgrey')
fontP = matplotlib.font_manager.FontProperties()
fontP.set_size('small')
ax.legend(loc='upper right', prop=fontP)
return
def plot_motor_profiles(ax, freqs, main_angles, motor_profiles, global_motor_profile, max_freq):
ax.set_title('Motor frequency profile', fontsize=14, color=KLIPPAIN_COLORS['dark_orange'], weight='bold')
ax.set_ylabel('Energy')
ax.set_xlabel('Frequency (Hz)')
ax2 = ax.twinx()
ax2.yaxis.set_visible(False)
# Global weighted average motor profile
ax.plot(freqs, global_motor_profile, label='Combined', color=KLIPPAIN_COLORS['purple'], zorder=5)
max_value = global_motor_profile.max()
# Mapping of angles to axis names
angle_settings = {0: 'X', 90: 'Y', 45: 'A', 135: 'B'}
# And then plot the motor profiles at each measured angles
for angle in main_angles:
profile_max = motor_profiles[angle].max()
if profile_max > max_value:
max_value = profile_max
label = f'{angle_settings[angle]} ({angle} deg)' if angle in angle_settings else f'{angle} deg'
ax.plot(freqs, motor_profiles[angle], linestyle='--', label=label, zorder=2)
ax.set_xlim([0, max_freq])
ax.set_ylim([0, max_value * 1.1])
ax.ticklabel_format(axis='y', style='scientific', scilimits=(0, 0))
# Then add the motor resonance peak to the graph and print some infos about it
motor_fr, motor_zeta, motor_res_idx, lowfreq_max = compute_mechanical_parameters(global_motor_profile, freqs, 30)
if lowfreq_max:
print_with_c_locale(
'[WARNING] There are a lot of low frequency vibrations that can alter the readings. This is probably due to the test being performed at too high an acceleration!'
)
print_with_c_locale(
'Try lowering the ACCEL value and/or increasing the SIZE value before restarting the macro to ensure that only constant speeds are being recorded and that the dynamic behavior of the machine is not affecting the measurements'
)
if motor_zeta is not None:
print_with_c_locale(
'Motors have a main resonant frequency at %.1fHz with an estimated damping ratio of %.3f'
% (motor_fr, motor_zeta)
)
else:
print_with_c_locale(
'Motors have a main resonant frequency at %.1fHz but it was impossible to estimate a damping ratio.'
% (motor_fr)
)
ax.plot(freqs[motor_res_idx], global_motor_profile[motor_res_idx], 'x', color='black', markersize=10)
ax.annotate(
'R',
(freqs[motor_res_idx], global_motor_profile[motor_res_idx]),
textcoords='offset points',
xytext=(15, 5),
ha='right',
fontsize=14,
color=KLIPPAIN_COLORS['red_pink'],
weight='bold',
)
ax2.plot([], [], ' ', label='Motor resonant frequency (ω0): %.1fHz' % (motor_fr))
if motor_zeta is not None:
ax2.plot([], [], ' ', label='Motor damping ratio (ζ): %.3f' % (motor_zeta))
else:
ax2.plot([], [], ' ', label='No damping ratio computed')
ax.xaxis.set_minor_locator(matplotlib.ticker.AutoMinorLocator())
ax.yaxis.set_minor_locator(matplotlib.ticker.AutoMinorLocator())
ax.grid(which='major', color='grey')
ax.grid(which='minor', color='lightgrey')
fontP = matplotlib.font_manager.FontProperties()
fontP.set_size('small')
ax.legend(loc='upper left', prop=fontP)
ax2.legend(loc='upper right', prop=fontP)
return
def plot_vibration_spectrogram_polar(ax, angles, speeds, spectrogram_data):
angles_radians = np.radians(angles)
# Assuming speeds defines the radial distance from the center, we need to create a meshgrid
# for both angles and speeds to map the spectrogram data onto a polar plot correctly
radius, theta = np.meshgrid(speeds, angles_radians)
ax.set_title(
'Polar vibrations heatmap', fontsize=14, color=KLIPPAIN_COLORS['dark_orange'], weight='bold', va='bottom'
)
ax.set_theta_zero_location('E')
ax.set_theta_direction(1)
ax.pcolormesh(theta, radius, spectrogram_data, norm=matplotlib.colors.LogNorm(), cmap='inferno', shading='auto')
ax.set_thetagrids([theta * 15 for theta in range(360 // 15)])
ax.tick_params(axis='y', which='both', colors='white', labelsize='medium')
ax.set_ylim([0, max(speeds)])
# Polar plot doesn't follow the gridspec margin, so we adjust it manually here
pos = ax.get_position()
new_pos = [pos.x0 - 0.01, pos.y0 - 0.01, pos.width, pos.height]
ax.set_position(new_pos)
return
def plot_vibration_spectrogram(ax, angles, speeds, spectrogram_data, peaks):
ax.set_title('Vibrations heatmap', fontsize=14, color=KLIPPAIN_COLORS['dark_orange'], weight='bold')
ax.set_xlabel('Speed (mm/s)')
ax.set_ylabel('Angle (deg)')
ax.imshow(
spectrogram_data,
norm=matplotlib.colors.LogNorm(),
cmap='inferno',
aspect='auto',
extent=[speeds[0], speeds[-1], angles[0], angles[-1]],
origin='lower',
interpolation='antialiased',
)
# Add peaks lines in the spectrogram to get hint from peaks found in the first graph
if peaks is not None and len(peaks) > 0:
for idx, peak in enumerate(peaks):
ax.axvline(speeds[peak], color='cyan', linewidth=0.75)
ax.annotate(
f'Peak {idx+1}',
(speeds[peak], angles[-1] * 0.9),
textcoords='data',
color='cyan',
rotation=90,
fontsize=10,
verticalalignment='top',
horizontalalignment='right',
)
return
def plot_motor_config_txt(fig, motors, differences):
motor_details = [(motors[0], 'X motor'), (motors[1], 'Y motor')]
distance = 0.12
if motors[0].get_property('autotune_enabled'):
distance = 0.24
config_blocks = [
f"| {lbl}: {mot.get_property('motor').upper()} on {mot.get_property('tmc').upper()} @ {mot.get_property('voltage')}V {mot.get_property('run_current')}A"
for mot, lbl in motor_details
]
config_blocks.append('| TMC Autotune enabled')
else:
config_blocks = [
f"| {lbl}: {mot.get_property('tmc').upper()} @ {mot.get_property('run_current')}A"
for mot, lbl in motor_details
]
config_blocks.append('| TMC Autotune not detected')
for idx, block in enumerate(config_blocks):
fig.text(
0.40, 0.990 - 0.015 * idx, block, ha='left', va='top', fontsize=10, color=KLIPPAIN_COLORS['dark_purple']
)
tmc_registers = motors[0].get_registers()
idx = -1
for idx, (register, settings) in enumerate(tmc_registers.items()):
settings_str = ' '.join(f'{k}={v}' for k, v in settings.items())
tmc_block = f'| {register.upper()}: {settings_str}'
fig.text(
0.40 + distance,
0.990 - 0.015 * idx,
tmc_block,
ha='left',
va='top',
fontsize=10,
color=KLIPPAIN_COLORS['dark_purple'],
)
if differences is not None:
differences_text = f'| Y motor diff: {differences}'
fig.text(
0.40 + distance,
0.990 - 0.015 * (idx + 1),
differences_text,
ha='left',
va='top',
fontsize=10,
color=KLIPPAIN_COLORS['dark_purple'],
)
######################################################################
# Startup and main routines
######################################################################
def extract_angle_and_speed(logname):
try:
match = re.search(r'an(\d+)_\d+sp(\d+)_\d+', os.path.basename(logname))
if match:
angle = match.group(1)
speed = match.group(2)
else:
raise ValueError(f'File {logname} does not match expected format. Clean your /tmp folder and start again!')
except AttributeError as err:
raise ValueError(
f'File {logname} does not match expected format. Clean your /tmp folder and start again!'
) from err
return float(angle), float(speed)
def vibrations_profile(
lognames, klipperdir='~/klipper', kinematics='cartesian', accel=None, max_freq=1000.0, st_version=None, motors=None
):
set_locale()
global shaper_calibrate
shaper_calibrate = setup_klipper_import(klipperdir)
if kinematics == 'cartesian':
main_angles = [0, 90]
elif kinematics == 'corexy':
main_angles = [45, 135]
else:
raise ValueError('Only Cartesian and CoreXY kinematics are supported by this tool at the moment!')
psds = defaultdict(lambda: defaultdict(list))
psds_sum = defaultdict(lambda: defaultdict(list))
target_freqs_initialized = False
for logname in lognames:
data = parse_log(logname)
angle, speed = extract_angle_and_speed(logname)
freq_response = calc_freq_response(data)
first_freqs = freq_response.freq_bins
psd_sum = freq_response.psd_sum
if not target_freqs_initialized:
target_freqs = first_freqs[first_freqs <= max_freq]
target_freqs_initialized = True
psd_sum = psd_sum[first_freqs <= max_freq]
first_freqs = first_freqs[first_freqs <= max_freq]
# Store the interpolated PSD and integral values
psds[angle][speed] = np.interp(target_freqs, first_freqs, psd_sum)
psds_sum[angle][speed] = np.trapz(psd_sum, first_freqs)
measured_angles = sorted(psds_sum.keys())
measured_speeds = sorted({speed for angle_speeds in psds_sum.values() for speed in angle_speeds.keys()})
for main_angle in main_angles:
if main_angle not in measured_angles:
raise ValueError('Measurements not taken at the correct angles for the specified kinematics!')
# Precompute the variables used in plot functions
all_angles, all_speeds, spectrogram_data = compute_dir_speed_spectrogram(
measured_speeds, psds_sum, kinematics, main_angles
)
all_angles_energy = compute_angle_powers(spectrogram_data)
sp_min_energy, sp_max_energy, sp_variance_energy, vibration_metric = compute_speed_powers(spectrogram_data)
motor_profiles, global_motor_profile = compute_motor_profiles(target_freqs, psds, all_angles_energy, main_angles)
# symmetry_factor = compute_symmetry_analysis(all_angles, all_angles_energy)
symmetry_factor = compute_symmetry_analysis(all_angles, spectrogram_data, main_angles)
print_with_c_locale(f'Machine estimated vibration symmetry: {symmetry_factor:.1f}%')
# Analyze low variance ranges of vibration energy across all angles for each speed to identify clean speeds
# and highlight them. Also find the peaks to identify speeds to avoid due to high resonances
num_peaks, vibration_peaks, peaks_speeds = detect_peaks(
vibration_metric,
all_speeds,
PEAKS_DETECTION_THRESHOLD * vibration_metric.max(),
PEAKS_RELATIVE_HEIGHT_THRESHOLD,
10,
10,
)
formated_peaks_speeds = ['{:.1f}'.format(pspeed) for pspeed in peaks_speeds]
print_with_c_locale(
'Vibrations peaks detected: %d @ %s mm/s (avoid setting a speed near these values in your slicer print profile)'
% (num_peaks, ', '.join(map(str, formated_peaks_speeds)))
)
good_speeds = identify_low_energy_zones(vibration_metric, SPEEDS_VALLEY_DETECTION_THRESHOLD)
if good_speeds is not None:
deletion_range = int(SPEEDS_AROUND_PEAK_DELETION / (all_speeds[1] - all_speeds[0]))
peak_speed_indices = {pspeed: np.where(all_speeds == pspeed)[0][0] for pspeed in set(peaks_speeds)}
# Filter and split ranges based on peak indices, avoiding overlaps
good_speeds = filter_and_split_ranges(all_speeds, good_speeds, peak_speed_indices, deletion_range)
# Add some logging about the good speeds found
print_with_c_locale(f'Lowest vibrations speeds ({len(good_speeds)} ranges sorted from best to worse):')
for idx, (start, end, _) in enumerate(good_speeds):
print_with_c_locale(f'{idx+1}: {all_speeds[start]:.1f} to {all_speeds[end]:.1f} mm/s')
# Angle low energy valleys identification (good angles ranges) and print them to the console
good_angles = identify_low_energy_zones(all_angles_energy, ANGLES_VALLEY_DETECTION_THRESHOLD)
if good_angles is not None:
print_with_c_locale(f'Lowest vibrations angles ({len(good_angles)} ranges sorted from best to worse):')
for idx, (start, end, energy) in enumerate(good_angles):
print_with_c_locale(
f'{idx+1}: {all_angles[start]:.1f}° to {all_angles[end]:.1f}° (mean vibrations energy: {energy:.2f}% of max)'
)
# Create graph layout
fig, ((ax1, ax2, ax3), (ax4, ax5, ax6)) = plt.subplots(
2,
3,
gridspec_kw={
'height_ratios': [1, 1],
'width_ratios': [4, 8, 6],
'bottom': 0.050,
'top': 0.890,
'left': 0.040,
'right': 0.985,
'hspace': 0.166,
'wspace': 0.138,
},
)
# Transform ax3 and ax4 to polar plots
ax1.remove()
ax1 = fig.add_subplot(2, 3, 1, projection='polar')
ax4.remove()
ax4 = fig.add_subplot(2, 3, 4, projection='polar')
# Set the global .png figure size
fig.set_size_inches(20, 11.5)
# Add title
title_line1 = 'MACHINE VIBRATIONS ANALYSIS TOOL'
fig.text(
0.060, 0.965, title_line1, ha='left', va='bottom', fontsize=20, color=KLIPPAIN_COLORS['purple'], weight='bold'
)
try:
filename_parts = (lognames[0].split('/')[-1]).split('_')
dt = datetime.strptime(f"{filename_parts[1]} {filename_parts[2].split('-')[0]}", '%Y%m%d %H%M%S')
title_line2 = dt.strftime('%x %X')
if accel is not None:
title_line2 += ' at ' + str(accel) + ' mm/s² -- ' + kinematics.upper() + ' kinematics'
except Exception:
print_with_c_locale('Warning: CSV filenames appear to be different than expected (%s)' % (lognames[0]))
title_line2 = lognames[0].split('/')[-1]
fig.text(0.060, 0.957, title_line2, ha='left', va='top', fontsize=16, color=KLIPPAIN_COLORS['dark_purple'])
# Add the motors infos to the top of the graph
if motors is not None and len(motors) == 2:
differences = motors[0].compare_to(motors[1])
plot_motor_config_txt(fig, motors, differences)
if differences is not None and kinematics == 'corexy':
print_with_c_locale(f'Warning: motors have different TMC configurations!\n{differences}')
# Plot the graphs
plot_angle_profile_polar(ax1, all_angles, all_angles_energy, good_angles, symmetry_factor)
plot_vibration_spectrogram_polar(ax4, all_angles, all_speeds, spectrogram_data)
plot_global_speed_profile(
ax2,
all_speeds,
sp_min_energy,
sp_max_energy,
sp_variance_energy,
vibration_metric,
num_peaks,
vibration_peaks,
good_speeds,
)
plot_angular_speed_profiles(ax3, all_speeds, all_angles, spectrogram_data, kinematics)
plot_vibration_spectrogram(ax5, all_angles, all_speeds, spectrogram_data, vibration_peaks)
plot_motor_profiles(ax6, target_freqs, main_angles, motor_profiles, global_motor_profile, max_freq)
# Adding a small Klippain logo to the top left corner of the figure
ax_logo = fig.add_axes([0.001, 0.924, 0.075, 0.075], anchor='NW')
ax_logo.imshow(plt.imread(os.path.join(os.path.dirname(os.path.abspath(__file__)), 'klippain.png')))
ax_logo.axis('off')
# Adding Shake&Tune version in the top right corner
if st_version != 'unknown':
fig.text(0.995, 0.985, st_version, ha='right', va='bottom', fontsize=8, color=KLIPPAIN_COLORS['purple'])
return fig
def main():
# Parse command-line arguments
usage = '%prog [options] <raw logs>'
opts = optparse.OptionParser(usage)
opts.add_option('-o', '--output', type='string', dest='output', default=None, help='filename of output graph')
opts.add_option(
'-c', '--accel', type='int', dest='accel', default=None, help='accel value to be printed on the graph'
)
opts.add_option('-f', '--max_freq', type='float', default=1000.0, help='maximum frequency to graph')
opts.add_option(
'-k', '--klipper_dir', type='string', dest='klipperdir', default='~/klipper', help='main klipper directory'
)
opts.add_option(
'-m',
'--kinematics',
type='string',
dest='kinematics',
default='cartesian',
help='machine kinematics configuration',
)
options, args = opts.parse_args()
if len(args) < 1:
opts.error('No CSV file(s) to analyse')
if options.output is None:
opts.error('You must specify an output file.png to use the script (option -o)')
if options.kinematics not in ['cartesian', 'corexy']:
opts.error('Only cartesian and corexy kinematics are supported by this tool at the moment!')
fig = vibrations_profile(args, options.klipperdir, options.kinematics, options.accel, options.max_freq)
fig.savefig(options.output, dpi=150)
if __name__ == '__main__':
main()

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#!/usr/bin/env python3
# Common functions for the Shake&Tune package
# Written by Frix_x#0161 #
import math
import os
import sys
from importlib import import_module
from pathlib import Path
import numpy as np
from git import GitCommandError, Repo
from scipy.signal import spectrogram
def parse_log(logname):
with open(logname) as f:
for header in f:
if not header.startswith('#'):
break
if not header.startswith('freq,psd_x,psd_y,psd_z,psd_xyz'):
# Raw accelerometer data
return np.loadtxt(logname, comments='#', delimiter=',')
# Power spectral density data or shaper calibration data
raise ValueError(
'File %s does not contain raw accelerometer data and therefore '
'is not supported by Shake&Tune. Please use the official Klipper '
'script to process it instead.' % (logname,)
)
def setup_klipper_import(kdir):
kdir = os.path.expanduser(kdir)
sys.path.append(os.path.join(kdir, 'klippy'))
return import_module('.shaper_calibrate', 'extras')
# This is used to print the current S&T version on top of the png graph file
def get_git_version():
try:
# Get the absolute path of the script, resolving any symlinks
# Then get 2 times to parent dir to be at the git root folder
script_path = Path(__file__).resolve()
repo_path = script_path.parents[1]
repo = Repo(repo_path)
try:
version = repo.git.describe('--tags')
except GitCommandError:
# If no tag is found, use the simplified commit SHA instead
version = repo.head.commit.hexsha[:7]
return version
except Exception:
return None
# This is Klipper's spectrogram generation function adapted to use Scipy
def compute_spectrogram(data):
N = data.shape[0]
Fs = N / (data[-1, 0] - data[0, 0])
# Round up to a power of 2 for faster FFT
M = 1 << int(0.5 * Fs - 1).bit_length()
window = np.kaiser(M, 6.0)
def _specgram(x):
return spectrogram(
x, fs=Fs, window=window, nperseg=M, noverlap=M // 2, detrend='constant', scaling='density', mode='psd'
)
d = {'x': data[:, 1], 'y': data[:, 2], 'z': data[:, 3]}
f, t, pdata = _specgram(d['x'])
for axis in 'yz':
pdata += _specgram(d[axis])[2]
return pdata, t, f
# Compute natural resonant frequency and damping ratio by using the half power bandwidth method with interpolated frequencies
def compute_mechanical_parameters(psd, freqs, min_freq=None):
max_under_min_freq = False
if min_freq is not None:
min_freq_index = np.searchsorted(freqs, min_freq, side='left')
if min_freq_index >= len(freqs):
return None, None, None, max_under_min_freq
if np.argmax(psd) < min_freq_index:
max_under_min_freq = True
else:
min_freq_index = 0
# Consider only the part of the signal above min_freq
psd_above_min_freq = psd[min_freq_index:]
if len(psd_above_min_freq) == 0:
return None, None, None, max_under_min_freq
max_power_index_above_min_freq = np.argmax(psd_above_min_freq)
max_power_index = max_power_index_above_min_freq + min_freq_index
fr = freqs[max_power_index]
max_power = psd[max_power_index]
half_power = max_power / math.sqrt(2)
indices_below = np.where(psd[:max_power_index] <= half_power)[0]
indices_above = np.where(psd[max_power_index:] <= half_power)[0]
# If we are not able to find points around the half power, we can't compute the damping ratio and return None instead
if len(indices_below) == 0 or len(indices_above) == 0:
return fr, None, max_power_index, max_under_min_freq
idx_below = indices_below[-1]
idx_above = indices_above[0] + max_power_index
freq_below_half_power = freqs[idx_below] + (half_power - psd[idx_below]) * (
freqs[idx_below + 1] - freqs[idx_below]
) / (psd[idx_below + 1] - psd[idx_below])
freq_above_half_power = freqs[idx_above - 1] + (half_power - psd[idx_above - 1]) * (
freqs[idx_above] - freqs[idx_above - 1]
) / (psd[idx_above] - psd[idx_above - 1])
bandwidth = freq_above_half_power - freq_below_half_power
bw1 = math.pow(bandwidth / fr, 2)
bw2 = math.pow(bandwidth / fr, 4)
try:
zeta = math.sqrt(0.5 - math.sqrt(1 / (4 + 4 * bw1 - bw2)))
except ValueError:
# If a math problem arise such as a negative sqrt term, we also return None instead for damping ratio
return fr, None, max_power_index, max_under_min_freq
return fr, zeta, max_power_index, max_under_min_freq
# This find all the peaks in a curve by looking at when the derivative term goes from positive to negative
# Then only the peaks found above a threshold are kept to avoid capturing peaks in the low amplitude noise of a signal
def detect_peaks(data, indices, detection_threshold, relative_height_threshold=None, window_size=5, vicinity=3):
# Smooth the curve using a moving average to avoid catching peaks everywhere in noisy signals
kernel = np.ones(window_size) / window_size
smoothed_data = np.convolve(data, kernel, mode='valid')
mean_pad = [np.mean(data[:window_size])] * (window_size // 2)
smoothed_data = np.concatenate((mean_pad, smoothed_data))
# Find peaks on the smoothed curve
smoothed_peaks = (
np.where((smoothed_data[:-2] < smoothed_data[1:-1]) & (smoothed_data[1:-1] > smoothed_data[2:]))[0] + 1
)
smoothed_peaks = smoothed_peaks[smoothed_data[smoothed_peaks] > detection_threshold]
# Additional validation for peaks based on relative height
valid_peaks = smoothed_peaks
if relative_height_threshold is not None:
valid_peaks = []
for peak in smoothed_peaks:
peak_height = smoothed_data[peak] - np.min(
smoothed_data[max(0, peak - vicinity) : min(len(smoothed_data), peak + vicinity + 1)]
)
if peak_height > relative_height_threshold * smoothed_data[peak]:
valid_peaks.append(peak)
# Refine peak positions on the original curve
refined_peaks = []
for peak in valid_peaks:
local_max = peak + np.argmax(data[max(0, peak - vicinity) : min(len(data), peak + vicinity + 1)]) - vicinity
refined_peaks.append(local_max)
num_peaks = len(refined_peaks)
return num_peaks, np.array(refined_peaks), indices[refined_peaks]
# The goal is to find zone outside of peaks (flat low energy zones) in a signal
def identify_low_energy_zones(power_total, detection_threshold=0.1):
valleys = []
# Calculate the a "mean + 1/4" and standard deviation of the entire power_total
mean_energy = np.mean(power_total) + (np.max(power_total) - np.min(power_total)) / 4
std_energy = np.std(power_total)
# Define a threshold value as "mean + 1/4" minus a certain number of standard deviations
threshold_value = mean_energy - detection_threshold * std_energy
# Find valleys in power_total based on the threshold
in_valley = False
start_idx = 0
for i, value in enumerate(power_total):
if not in_valley and value < threshold_value:
in_valley = True
start_idx = i
elif in_valley and value >= threshold_value:
in_valley = False
valleys.append((start_idx, i))
# If the last point is still in a valley, close the valley
if in_valley:
valleys.append((start_idx, len(power_total) - 1))
max_signal = np.max(power_total)
# Calculate mean energy for each valley as a percentage of the maximum of the signal
valley_means_percentage = []
for start, end in valleys:
if not np.isnan(np.mean(power_total[start:end])):
valley_means_percentage.append((start, end, (np.mean(power_total[start:end]) / max_signal) * 100))
# Sort valleys based on mean percentage values
sorted_valleys = sorted(valley_means_percentage, key=lambda x: x[2])
return sorted_valleys
# Calculate or estimate a "similarity" factor between two PSD curves and scale it to a percentage. This is
# used here to quantify how close the two belts path behavior and responses are close together.
def compute_curve_similarity_factor(x1, y1, x2, y2, sim_sigmoid_k=0.6):
# Interpolate PSDs to match the same frequency bins and do a cross-correlation
y2_interp = np.interp(x1, x2, y2)
cross_corr = np.correlate(y1, y2_interp, mode='full')
# Find the peak of the cross-correlation and compute a similarity normalized by the energy of the signals
peak_value = np.max(cross_corr)
similarity = peak_value / (np.sqrt(np.sum(y1**2) * np.sum(y2_interp**2)))
# Apply sigmoid scaling to get better numbers and get a final percentage value
scaled_similarity = sigmoid_scale(-np.log(1 - similarity), sim_sigmoid_k)
return scaled_similarity
# Simple helper to compute a sigmoid scalling (from 0 to 100%)
def sigmoid_scale(x, k=1):
return 1 / (1 + np.exp(-k * x)) * 100

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@@ -0,0 +1,38 @@
#!/usr/bin/env python3
# Common file management functions for the Shake&Tune package
# Written by Frix_x#0161 #
import os
import time
from pathlib import Path
def wait_file_ready(filepath: Path, timeout: int = 60) -> None:
file_busy = True
loop_count = 0
while file_busy:
if loop_count >= timeout:
raise TimeoutError(f'Klipper is taking too long to release the CSV file ({filepath})!')
# Try to open the file in write-only mode to check if it is in use
# If we successfully open and close the file, it is not in use
try:
fd = os.open(filepath, os.O_WRONLY)
os.close(fd)
file_busy = False
except OSError:
# If OSError is caught, it indicates the file is still being used
pass
except Exception:
# If another exception is raised, it's not a problem, we just loop again
pass
loop_count += 1
time.sleep(1)
def ensure_folders_exist(folders: list[Path]) -> None:
for folder in folders:
folder.mkdir(parents=True, exist_ok=True)

View File

@@ -6,6 +6,7 @@
import locale
# Set the best locale for time and date formating (generation of the titles)
def set_locale():
try:
@@ -15,16 +16,19 @@ def set_locale():
except locale.Error:
locale.setlocale(locale.LC_TIME, 'C')
# Print function to avoid problem in Klipper console (that doesn't support special characters) due to locale settings
def print_with_c_locale(*args, **kwargs):
try:
original_locale = locale.getlocale()
locale.setlocale(locale.LC_ALL, 'C')
except locale.Error as e:
print("Warning: Failed to set a basic locale. Special characters may not display correctly in Klipper console:", e)
print(
'Warning: Failed to set a basic locale. Special characters may not display correctly in Klipper console:', e
)
finally:
print(*args, **kwargs) # Proceed with printing regardless of locale setting success
print(*args, **kwargs) # Proceed with printing regardless of locale setting success
try:
locale.setlocale(locale.LC_ALL, original_locale)
except locale.Error as e:
print("Warning: Failed to restore the original locale setting:", e)
print('Warning: Failed to restore the original locale setting:', e)

View File

@@ -0,0 +1,205 @@
#!/usr/bin/env python3
# Classes to parse the Klipper log and parse the TMC dump to extract the relevant information
# Written by Frix_x#0161 #
import re
from pathlib import Path
from typing import Any, Dict, List, Optional, Union
class Motor:
def __init__(self, name: str):
self._name: str = name
self._registers: Dict[str, Dict[str, Any]] = {}
self._properties: Dict[str, Any] = {}
def set_register(self, register: str, value: Any) -> None:
# Special parsing for CHOPCONF to extract meaningful values
if register == 'CHOPCONF':
# Add intpol=0 if missing from the register dump
if 'intpol=' not in value:
value += ' intpol=0'
# Simplify the microstep resolution format
mres_match = re.search(r'mres=\d+\((\d+)usteps\)', value)
if mres_match:
value = re.sub(r'mres=\d+\(\d+usteps\)', f'mres={mres_match.group(1)}', value)
# Special parsing for CHOPCONF to avoid pwm_ before each values
if register == 'PWMCONF':
parts = value.split()
new_parts = []
for part in parts:
key, val = part.split('=', 1)
if key.startswith('pwm_'):
key = key[4:]
new_parts.append(f'{key}={val}')
value = ' '.join(new_parts)
# General cleaning to remove extraneous labels and colons and parse the whole into Motor _registers
cleaned_values = re.sub(r'\b\w+:\s+\S+\s+', '', value)
# Then fill the registers while merging all the thresholds into the same THRS virtual register
if register in ['TPWMTHRS', 'TCOOLTHRS']:
existing_thrs = self._registers.get('THRS', {})
new_values = self._parse_register_values(cleaned_values)
merged_values = {**existing_thrs, **new_values}
self._registers['THRS'] = merged_values
else:
self._registers[register] = self._parse_register_values(cleaned_values)
def _parse_register_values(self, register_string: str) -> Dict[str, Any]:
parsed = {}
parts = register_string.split()
for part in parts:
if '=' in part:
k, v = part.split('=', 1)
parsed[k] = v
return parsed
def get_register(self, register: str) -> Optional[Dict[str, Any]]:
return self._registers.get(register)
def get_registers(self) -> Dict[str, Dict[str, Any]]:
return self._registers
def set_property(self, property: str, value: Any) -> None:
self._properties[property] = value
def get_property(self, property: str) -> Optional[Any]:
return self._properties.get(property)
def __str__(self):
return f'Stepper: {self._name}\nKlipper config: {self._properties}\nTMC Registers: {self._registers}'
# Return the other motor properties and registers that are different from the current motor
def compare_to(self, other: 'Motor') -> Optional[Dict[str, Dict[str, Any]]]:
differences = {'properties': {}, 'registers': {}}
# Compare properties
all_keys = self._properties.keys() | other._properties.keys()
for key in all_keys:
val1 = self._properties.get(key)
val2 = other._properties.get(key)
if val1 != val2:
differences['properties'][key] = val2
# Compare registers
all_keys = self._registers.keys() | other._registers.keys()
for key in all_keys:
reg1 = self._registers.get(key, {})
reg2 = other._registers.get(key, {})
if reg1 != reg2:
reg_diffs = {}
sub_keys = reg1.keys() | reg2.keys()
for sub_key in sub_keys:
reg_val1 = reg1.get(sub_key)
reg_val2 = reg2.get(sub_key)
if reg_val1 != reg_val2:
reg_diffs[sub_key] = reg_val2
if reg_diffs:
differences['registers'][key] = reg_diffs
# Clean up: remove empty sections if there are no differences
if not differences['properties']:
del differences['properties']
if not differences['registers']:
del differences['registers']
if not differences:
return None
return differences
class MotorLogParser:
_section_pattern: str = r'DUMP_TMC stepper_(x|y)'
_register_patterns: Dict[str, str] = {
'CHOPCONF': r'CHOPCONF:\s+\S+\s+(.*)',
'PWMCONF': r'PWMCONF:\s+\S+\s+(.*)',
'COOLCONF': r'COOLCONF:\s+(.*)',
'TPWMTHRS': r'TPWMTHRS:\s+\S+\s+(.*)',
'TCOOLTHRS': r'TCOOLTHRS:\s+\S+\s+(.*)',
}
def __init__(self, filepath: Path, config_string: Optional[str] = None):
self._filepath = filepath
self._motors: List[Motor] = []
self._config = self._parse_config(config_string) if config_string else {}
self._parse_registers()
def _parse_config(self, config_string: str) -> Dict[str, Any]:
config = {}
entries = config_string.split('|')
for entry in entries:
if entry:
key, value = entry.split(':')
config[key.strip()] = self._convert_value(value.strip())
return config
def _convert_value(self, value: str) -> Union[int, float, bool, str]:
if value.isdigit():
return int(value)
try:
return float(value)
except ValueError:
if value.lower() in ['true', 'false']:
return value.lower() == 'true'
return value
def _parse_registers(self) -> None:
with open(self._filepath, 'r') as file:
log_content = file.read()
sections = re.split(self._section_pattern, log_content)
# Detect only the latest dumps from the log (to ignore potential previous and outdated dumps)
last_sections: Dict[str, int] = {}
for i in range(1, len(sections), 2):
stepper_name = 'stepper_' + sections[i].strip()
last_sections[stepper_name] = i
for stepper_name, index in last_sections.items():
content = sections[index + 1]
motor = Motor(stepper_name)
# Apply general properties from config string
for key, value in self._config.items():
if stepper_name in key:
prop_key = key.replace(stepper_name + '_', '')
motor.set_property(prop_key, value)
elif 'autotune' in key:
motor.set_property(key, value)
# Parse TMC registers
for key, pattern in self._register_patterns.items():
match = re.search(pattern, content)
if match:
values = match.group(1).strip()
motor.set_register(key, values)
self._motors.append(motor)
# Find and return the motor by its name
def get_motor(self, motor_name: str) -> Optional[Motor]:
for motor in self._motors:
if motor._name == motor_name:
return motor
return None
# Get all the motor list at once
def get_motors(self) -> List[Motor]:
return self._motors
# # Usage example:
# config_string = "stepper_x_tmc:tmc2240|stepper_x_run_current:0.9|stepper_x_hold_current:0.9|stepper_y_tmc:tmc2240|stepper_y_run_current:0.9|stepper_y_hold_current:0.9|autotune_enabled:True|stepper_x_motor:ldo-35sth48-1684ah|stepper_x_voltage:|stepper_y_motor:ldo-35sth48-1684ah|stepper_y_voltage:|"
# parser = MotorLogParser('/path/to/your/logfile.log', config_string)
# stepper_x = parser.get_motor('stepper_x')
# stepper_y = parser.get_motor('stepper_y')
# print(stepper_x)
# print(stepper_y)

424
src/is_workflow.py Executable file
View File

@@ -0,0 +1,424 @@
#!/usr/bin/env python3
############################################
###### INPUT SHAPER KLIPPAIN WORKFLOW ######
############################################
# Written by Frix_x#0161 #
# This script is designed to be used with gcode_shell_commands directly from Klipper
# Use the provided Shake&Tune macros instead!
import abc
import argparse
import tarfile
import traceback
from datetime import datetime
from pathlib import Path
from typing import Callable, Optional
from git import GitCommandError, Repo
from matplotlib.figure import Figure
import src.helpers.filemanager as fm
from src.graph_creators.analyze_axesmap import axesmap_calibration
from src.graph_creators.graph_belts import belts_calibration
from src.graph_creators.graph_shaper import shaper_calibration
from src.graph_creators.graph_vibrations import vibrations_profile
from src.helpers.locale_utils import print_with_c_locale
from src.helpers.motorlogparser import MotorLogParser
class Config:
KLIPPER_FOLDER = Path.home() / 'klipper'
KLIPPER_LOG_FOLDER = Path.home() / 'printer_data/logs'
RESULTS_BASE_FOLDER = Path.home() / 'printer_data/config/K-ShakeTune_results'
RESULTS_SUBFOLDERS = {'belts': 'belts', 'shaper': 'inputshaper', 'vibrations': 'vibrations'}
@staticmethod
def get_results_folder(type: str) -> Path:
return Config.RESULTS_BASE_FOLDER / Config.RESULTS_SUBFOLDERS[type]
@staticmethod
def get_git_version() -> str:
try:
# Get the absolute path of the script, resolving any symlinks
# Then get 1 times to parent dir to be at the git root folder
script_path = Path(__file__).resolve()
repo_path = script_path.parents[1]
repo = Repo(repo_path)
try:
version = repo.git.describe('--tags')
except GitCommandError:
version = repo.head.commit.hexsha[:7] # If no tag is found, use the simplified commit SHA instead
return version
except Exception as e:
print_with_c_locale(f'Warning: unable to retrieve Shake&Tune version number: {e}')
return 'unknown'
@staticmethod
def parse_arguments() -> argparse.Namespace:
parser = argparse.ArgumentParser(description='Shake&Tune graphs generation script')
parser.add_argument(
'-t',
'--type',
dest='type',
choices=['belts', 'shaper', 'vibrations', 'axesmap'],
required=True,
help='Type of output graph to produce',
)
parser.add_argument(
'--accel',
type=int,
default=None,
dest='accel_used',
help='Accelerometion used for vibrations profile creation or axes map calibration',
)
parser.add_argument(
'--chip_name',
type=str,
default='adxl345',
dest='chip_name',
help='Accelerometer chip name used for vibrations profile creation or axes map calibration',
)
parser.add_argument(
'--max_smoothing',
type=float,
default=None,
dest='max_smoothing',
help='Maximum smoothing to allow for input shaper filter recommendations',
)
parser.add_argument(
'--scv',
'--square_corner_velocity',
type=float,
default=5.0,
dest='scv',
help='Square corner velocity used to compute max accel for input shapers filter recommendations',
)
parser.add_argument(
'-m',
'--kinematics',
dest='kinematics',
default='cartesian',
choices=['cartesian', 'corexy'],
help='Machine kinematics configuration used for the vibrations profile creation',
)
parser.add_argument(
'--metadata',
type=str,
default=None,
dest='metadata',
help='Motor configuration metadata printed on the vibrations profiles',
)
parser.add_argument(
'-c',
'--keep_csv',
action='store_true',
default=False,
dest='keep_csv',
help='Whether to keep the raw CSV files after processing in addition to the PNG graphs',
)
parser.add_argument(
'-n',
'--keep_results',
type=int,
default=3,
dest='keep_results',
help='Number of results to keep in the result folder after each run of the script',
)
parser.add_argument('--dpi', type=int, default=150, dest='dpi', help='DPI of the output PNG files')
parser.add_argument('-v', '--version', action='version', version=f'Shake&Tune {Config.get_git_version()}')
return parser.parse_args()
class GraphCreator(abc.ABC):
def __init__(self, keep_csv: bool, dpi: int):
self._keep_csv = keep_csv
self._dpi = dpi
self._graph_date = datetime.now().strftime('%Y%m%d_%H%M%S')
self._version = Config.get_git_version()
self._type = None
self._folder = None
def _setup_folder(self, graph_type: str) -> None:
self._type = graph_type
self._folder = Config.get_results_folder(graph_type)
def _move_and_prepare_files(
self,
glob_pattern: str,
min_files_required: Optional[int] = None,
custom_name_func: Optional[Callable[[Path], str]] = None,
) -> list[Path]:
tmp_path = Path('/tmp')
globbed_files = list(tmp_path.glob(glob_pattern))
# If min_files_required is not set, use the number of globbed files as the minimum
min_files_required = min_files_required or len(globbed_files)
if not globbed_files:
raise FileNotFoundError(f'no CSV files found in the /tmp folder to create the {self._type} graphs!')
if len(globbed_files) < min_files_required:
raise FileNotFoundError(f'{min_files_required} CSV files are needed to create the {self._type} graphs!')
lognames = []
for filename in sorted(globbed_files, key=lambda f: f.stat().st_mtime, reverse=True)[:min_files_required]:
fm.wait_file_ready(filename)
custom_name = custom_name_func(filename) if custom_name_func else filename.name
new_file = self._folder / f'{self._type}_{self._graph_date}_{custom_name}.csv'
filename.rename(new_file)
fm.wait_file_ready(new_file)
lognames.append(new_file)
return lognames
def _save_figure_and_cleanup(self, fig: Figure, lognames: list[Path], axis_label: Optional[str] = None) -> None:
axis_suffix = f'_{axis_label}' if axis_label else ''
png_filename = self._folder / f'{self._type}_{self._graph_date}{axis_suffix}.png'
fig.savefig(png_filename, dpi=self._dpi)
if self._keep_csv:
self._archive_files(lognames)
else:
self._remove_files(lognames)
def _archive_files(self, _: list[Path]) -> None:
return
def _remove_files(self, lognames: list[Path]) -> None:
for csv in lognames:
csv.unlink(missing_ok=True)
@abc.abstractmethod
def create_graph(self) -> None:
pass
@abc.abstractmethod
def clean_old_files(self, keep_results: int) -> None:
pass
class BeltsGraphCreator(GraphCreator):
def __init__(self, keep_csv: bool = False, dpi: int = 150):
super().__init__(keep_csv, dpi)
self._setup_folder('belts')
def create_graph(self) -> None:
lognames = self._move_and_prepare_files(
glob_pattern='raw_data_axis*.csv',
min_files_required=2,
custom_name_func=lambda f: f.stem.split('_')[3].upper(),
)
fig = belts_calibration(
lognames=[str(path) for path in lognames],
klipperdir=str(Config.KLIPPER_FOLDER),
st_version=self._version,
)
self._save_figure_and_cleanup(fig, lognames)
def clean_old_files(self, keep_results: int = 3) -> None:
# Get all PNG files in the directory as a list of Path objects
files = sorted(self._folder.glob('*.png'), key=lambda f: f.stat().st_mtime, reverse=True)
if len(files) <= keep_results:
return # No need to delete any files
# Delete the older files
for old_file in files[keep_results:]:
file_date = '_'.join(old_file.stem.split('_')[1:3])
for suffix in ['A', 'B']:
csv_file = self._folder / f'belts_{file_date}_{suffix}.csv'
csv_file.unlink(missing_ok=True)
old_file.unlink()
class ShaperGraphCreator(GraphCreator):
def __init__(self, keep_csv: bool = False, dpi: int = 150):
super().__init__(keep_csv, dpi)
self._max_smoothing = None
self._scv = None
self._setup_folder('shaper')
def configure(self, scv: float, max_smoothing: float = None) -> None:
self._scv = scv
self._max_smoothing = max_smoothing
def create_graph(self) -> None:
if not self._scv:
raise ValueError('scv must be set to create the input shaper graph!')
lognames = self._move_and_prepare_files(
glob_pattern='raw_data*.csv',
min_files_required=1,
custom_name_func=lambda f: f.stem.split('_')[3].upper(),
)
fig = shaper_calibration(
lognames=[str(path) for path in lognames],
klipperdir=str(Config.KLIPPER_FOLDER),
max_smoothing=self._max_smoothing,
scv=self._scv,
st_version=self._version,
)
self._save_figure_and_cleanup(fig, lognames, lognames[0].stem.split('_')[-1])
def clean_old_files(self, keep_results: int = 3) -> None:
# Get all PNG files in the directory as a list of Path objects
files = sorted(self._folder.glob('*.png'), key=lambda f: f.stat().st_mtime, reverse=True)
if len(files) <= 2 * keep_results:
return # No need to delete any files
# Delete the older files
for old_file in files[2 * keep_results :]:
csv_file = old_file.with_suffix('.csv')
csv_file.unlink(missing_ok=True)
old_file.unlink()
class VibrationsGraphCreator(GraphCreator):
def __init__(self, keep_csv: bool = False, dpi: int = 150):
super().__init__(keep_csv, dpi)
self._kinematics = None
self._accel = None
self._chip_name = None
self._motors = None
self._setup_folder('vibrations')
def configure(self, kinematics: str, accel: float, chip_name: str, metadata: str) -> None:
self._kinematics = kinematics
self._accel = accel
self._chip_name = chip_name
parser = MotorLogParser(Config.KLIPPER_LOG_FOLDER / 'klippy.log', metadata)
self._motors = parser.get_motors()
def _archive_files(self, lognames: list[Path]) -> None:
tar_path = self._folder / f'{self._type}_{self._graph_date}.tar.gz'
with tarfile.open(tar_path, 'w:gz') as tar:
for csv_file in lognames:
tar.add(csv_file, arcname=csv_file.name, recursive=False)
def create_graph(self) -> None:
if not self._accel or not self._chip_name or not self._kinematics:
raise ValueError('accel, chip_name and kinematics must be set to create the vibrations profile graph!')
lognames = self._move_and_prepare_files(
glob_pattern=f'{self._chip_name}-*.csv',
min_files_required=None,
custom_name_func=lambda f: f.name.replace(self._chip_name, self._type),
)
fig = vibrations_profile(
lognames=[str(path) for path in lognames],
klipperdir=str(Config.KLIPPER_FOLDER),
kinematics=self._kinematics,
accel=self._accel,
st_version=self._version,
motors=self._motors,
)
self._save_figure_and_cleanup(fig, lognames)
def clean_old_files(self, keep_results: int = 3) -> None:
# Get all PNG files in the directory as a list of Path objects
files = sorted(self._folder.glob('*.png'), key=lambda f: f.stat().st_mtime, reverse=True)
if len(files) <= keep_results:
return # No need to delete any files
# Delete the older files
for old_file in files[keep_results:]:
old_file.unlink()
tar_file = old_file.with_suffix('.tar.gz')
tar_file.unlink(missing_ok=True)
class AxesMapFinder:
def __init__(self, accel: float, chip_name: str):
self._accel = accel
self._chip_name = chip_name
self._graph_date = datetime.now().strftime('%Y%m%d_%H%M%S')
self._type = 'axesmap'
self._folder = Config.RESULTS_BASE_FOLDER
def find_axesmap(self) -> None:
tmp_folder = Path('/tmp')
globbed_files = list(tmp_folder.glob(f'{self._chip_name}-*.csv'))
if not globbed_files:
raise FileNotFoundError('no CSV files found in the /tmp folder to find the axes map!')
# Find the CSV files with the latest timestamp and wait for it to be released by Klipper
logname = sorted(globbed_files, key=lambda f: f.stat().st_mtime, reverse=True)[0]
fm.wait_file_ready(logname)
results = axesmap_calibration(
lognames=[str(logname)],
accel=self._accel,
)
result_filename = self._folder / f'{self._type}_{self._graph_date}.txt'
with result_filename.open('w') as f:
f.write(results)
def main():
options = Config.parse_arguments()
fm.ensure_folders_exist(
folders=[Config.RESULTS_BASE_FOLDER / subfolder for subfolder in Config.RESULTS_SUBFOLDERS.values()]
)
print_with_c_locale(f'Shake&Tune version: {Config.get_git_version()}')
graph_creators = {
'belts': (BeltsGraphCreator, None),
'shaper': (ShaperGraphCreator, lambda gc: gc.configure(options.scv, options.max_smoothing)),
'vibrations': (
VibrationsGraphCreator,
lambda gc: gc.configure(options.kinematics, options.accel_used, options.chip_name, options.metadata),
),
'axesmap': (AxesMapFinder, None),
}
creator_info = graph_creators.get(options.type)
if not creator_info:
print_with_c_locale('Error: invalid graph type specified!')
return
# Instantiate the graph creator
graph_creator_class, configure_func = creator_info
graph_creator = graph_creator_class(options.keep_csv, options.dpi)
# Configure it if needed
if configure_func:
configure_func(graph_creator)
# And then run it
try:
graph_creator.create_graph()
except FileNotFoundError as e:
print_with_c_locale(f'FileNotFound error: {e}')
return
except TimeoutError as e:
print_with_c_locale(f'Timeout error: {e}')
return
except Exception as e:
print_with_c_locale(f'Error while generating the graphs: {e}')
traceback.print_exc()
return
print_with_c_locale(f'{options.type} graphs created successfully!')
graph_creator.clean_old_files(options.keep_results)
print_with_c_locale(f'Cleaned output folder to keep only the last {options.keep_results} results!')
if __name__ == '__main__':
main()

9
system-dependencies.json Normal file
View File

@@ -0,0 +1,9 @@
{
"debian": [
"python3-venv",
"python3-numpy",
"python3-matplotlib",
"libopenblas-dev",
"libatlas-base-dev"
]
}