109 lines
4.5 KiB
Python
109 lines
4.5 KiB
Python
# Shake&Tune: 3D printer analysis tools
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#
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# Copyright (C) 2024 Félix Boisselier <felix@fboisselier.fr> (Frix_x on Discord)
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# Licensed under the GNU General Public License v3.0 (GPL-3.0)
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#
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# File: excitate_axis_at_freq.py
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# Description: Provide a command to excites a specified axis at a given frequency for a duration
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# and optionally creates a graph of the vibration data collected by the accelerometer.
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from ..helpers.common_func import AXIS_CONFIG
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from ..helpers.console_output import ConsoleOutput
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from ..helpers.resonance_test import vibrate_axis_at_static_freq
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from ..shaketune_process import ShakeTuneProcess
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from .accelerometer import Accelerometer
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def excitate_axis_at_freq(gcmd, config, st_process: ShakeTuneProcess) -> None:
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create_graph = gcmd.get_int('CREATE_GRAPH', default=0, minval=0, maxval=1) == 1
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freq = gcmd.get_int('FREQUENCY', default=25, minval=1)
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duration = gcmd.get_int('DURATION', default=30, minval=1)
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accel_per_hz = gcmd.get_float('ACCEL_PER_HZ', default=None)
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axis = gcmd.get('AXIS', default='x').lower()
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feedrate_travel = gcmd.get_float('TRAVEL_SPEED', default=120.0, minval=20.0)
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z_height = gcmd.get_float('Z_HEIGHT', default=None, minval=1)
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accel_chip = gcmd.get('ACCEL_CHIP', default=None)
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if accel_chip == '':
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accel_chip = None
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if accel_per_hz == '':
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accel_per_hz = None
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axis_config = next((item for item in AXIS_CONFIG if item['axis'] == axis), None)
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if axis_config is None:
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raise gcmd.error('AXIS selection invalid. Should be either x, y, a or b!')
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if create_graph:
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printer = config.get_printer()
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if accel_chip is None:
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accel_chip = Accelerometer.find_axis_accelerometer(printer, 'xy' if axis in {'a', 'b'} else axis)
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k_accelerometer = printer.lookup_object(accel_chip, None)
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if k_accelerometer is None:
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raise gcmd.error(f'Accelerometer chip [{accel_chip}] was not found!')
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accelerometer = Accelerometer(k_accelerometer)
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ConsoleOutput.print(f'Excitating {axis.upper()} axis at {freq}Hz for {duration} seconds')
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printer = config.get_printer()
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gcode = printer.lookup_object('gcode')
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toolhead = printer.lookup_object('toolhead')
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res_tester = printer.lookup_object('resonance_tester')
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systime = printer.get_reactor().monotonic()
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if accel_per_hz is None:
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accel_per_hz = res_tester.test.accel_per_hz
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# Move to the starting point
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test_points = res_tester.test.get_start_test_points()
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if len(test_points) > 1:
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raise gcmd.error('Only one test point in the [resonance_tester] section is supported by Shake&Tune.')
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if test_points[0] == (-1, -1, -1):
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if z_height is None:
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raise gcmd.error(
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'Z_HEIGHT parameter is required if the test_point in [resonance_tester] section is set to -1,-1,-1'
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)
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# Use center of bed in case the test point in [resonance_tester] is set to -1,-1,-1
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# This is usefull to get something automatic and is also used in the Klippain modular config
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kin_info = toolhead.kin.get_status(systime)
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mid_x = (kin_info['axis_minimum'].x + kin_info['axis_maximum'].x) / 2
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mid_y = (kin_info['axis_minimum'].y + kin_info['axis_maximum'].y) / 2
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point = (mid_x, mid_y, z_height)
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else:
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x, y, z = test_points[0]
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if z_height is not None:
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z = z_height
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point = (x, y, z)
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toolhead.manual_move(point, feedrate_travel)
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toolhead.dwell(0.5)
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# Deactivate input shaper if it is active to get raw movements
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input_shaper = printer.lookup_object('input_shaper', None)
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if input_shaper is not None:
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input_shaper.disable_shaping()
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else:
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input_shaper = None
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# If the user want to create a graph, we start accelerometer recording
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if create_graph:
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accelerometer.start_measurement()
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toolhead.dwell(0.5)
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vibrate_axis_at_static_freq(toolhead, gcode, axis_config['direction'], freq, duration, accel_per_hz)
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toolhead.dwell(0.5)
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# Re-enable the input shaper if it was active
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if input_shaper is not None:
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input_shaper.enable_shaping()
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# If the user wanted to create a graph, we stop the recording and generate it
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if create_graph:
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accelerometer.stop_measurement(f'staticfreq_{axis.upper()}', append_time=True)
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accelerometer.wait_for_file_writes()
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creator = st_process.get_graph_creator()
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creator.configure(freq, duration, accel_per_hz)
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st_process.run()
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st_process.wait_for_completion()
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