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small bug-fixes and greek alphabet for paired peaks

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Félix Boisselier
2024-05-19 13:02:56 +02:00
parent 4f100eac8f
commit 1d4c68265d
7 changed files with 11 additions and 7 deletions
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docs/macros/belts_tuning.md
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@@ -25,7 +25,7 @@ Then, call the `COMPARE_BELTS_RESPONSES` macro and look for the graphs in the re
### Belts frequency profiles
On these graphs, **you want both curves to look similar and overlap to form a single curve**: try to make them fit as closely as possible in frequency **and** in amplitude. Usually a belt graph is composed of one or two main peaks (more than 2 peaks can hint about mechanical problems). It's acceptable to have "noise" around the main peaks, but it should be present on both curves with a comparable amplitude. Keep in mind that when you tighten a belt, its peaks should move diagonally toward the upper right corner, changing significantly in amplitude and slightly in frequency. Additionally, the magnitude order of the main peaks *should typically* range from ~500k to ~2M on most machines.
On these graphs, **you want both curves to look similar and overlap to form a single curve**: try to make them fit as closely as possible in frequency **and** in amplitude. Usually a belt graph is composed of one or two main paired peaks (more than 2 peaks can hint about mechanical problems). It's acceptable to have "noise" around the main peaks, but it should be present on both curves with a comparable amplitude. Keep in mind that when you tighten a belt, its peaks should move diagonally toward the upper right corner, changing significantly in amplitude and slightly in frequency. Additionally, the magnitude order of the main peaks *should typically* range from ~500k to ~2M on most machines.
Aside from the actual belt tension, the resonant frequency/amplitude of the curves depends primarily on three parameters:
- the *mass of the toolhead*, which is identical on CoreXY, CrossXY and H-Bot machines for both belts. So this will unlikely have any effect here
@@ -40,7 +40,7 @@ The Cross-Belts plot is an innovative cool way to compare the frequency profiles
The good zone, wider at the bottom (low-amplitude regions where the deviation doesn't matter much) and narrower at the top right (high-energy region where the main peaks lie), represents acceptable deviations. So **you want all points to be close to the ideal center line and as many as possible within the green zone**, as this means that the bands are well tuned and behave similarly.
Paired peaks of exactly the same frequency will be on the same point (labeled A1/A2, ...) and the distance from the center line will show the difference in energy. For paired peaks that also have a frequency delta between them, they are displayed as two points (labeled A1 and A2, ...) and the additional distance between them along the plotted line represents their frequency delta.
Paired peaks of exactly the same frequency will be on the same point (labeled α1/α2, β1/β2, ...) and the distance from the center line will show the difference in energy. For paired peaks that also have a frequency delta between them, they are displayed as two points (labeled α1 and α2, ...) and the additional distance between them along the plotted line represents their frequency delta.
### Estimated similarity and mechanical issues indicator