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KevinOConnor
2024-12-06 02:55:04 +00:00
parent 97350e4431
commit 926529b257
16 changed files with 49 additions and 2 deletions
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Measuring_Resonances.html
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@@ -990,6 +990,13 @@
Selecting max_accel
</a>
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<a href="#unreliable-measurements-of-resonance-frequencies" class="md-nav__link">
Unreliable measurements of resonance frequencies
</a>
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@@ -1852,6 +1859,13 @@
Selecting max_accel
</a>
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<li class="md-nav__item">
<a href="#unreliable-measurements-of-resonance-frequencies" class="md-nav__link">
Unreliable measurements of resonance frequencies
</a>
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@@ -2660,6 +2674,22 @@ to specify it explicitly.</p>
<p>If you are doing a shaper re-calibration and the reported smoothing for the
suggested shaper configuration is almost the same as what you got during the
previous calibration, this step can be skipped.</p>
<h3 id="unreliable-measurements-of-resonance-frequencies">Unreliable measurements of resonance frequencies<a class="headerlink" href="#unreliable-measurements-of-resonance-frequencies" title="Permanent link">&para;</a></h3>
<p>Sometimes the resonance measurements can produce bogus results, leading to
the incorrect suggestions for the input shapers. This can be caused by a
variety of reasons, including running fans on the toolhead, incorrect
position or non-rigid mounting of the accelerometer, or mechanical problems
such as loose belts or binding or bumpy axis. Keep in mind that all fans
should be disabled for resonance testing, especially the noisy ones, and
that the accelerometer should be rigidly mounted on the corresponding
moving part (e.g. on the bed itself for the bed slinger, or on the extruder
of the printer itself and not the carriage, and some people get better
results by mounting the accelerometer on the nozzle itself). As for
mechanical problems, the user should inspect if there is any fault that
can be fixed with a moving axis (e.g. linear guide rails cleaned up and
lubricated and V-slot wheels tension adjusted correctly). If none of that
helps, a user may try the other shapers from the produced list besides the
one recommended by default.</p>
<h3 id="testing-custom-axes">Testing custom axes<a class="headerlink" href="#testing-custom-axes" title="Permanent link">&para;</a></h3>
<p><code>TEST_RESONANCES</code> command supports custom axes. While this is not really
useful for input shaper calibration, it can be used to study printer