Calibrating Backlash Compensation
Semi-assembled (v3) LumenPnP machines should have only a limited amount of backlash in each axis and the default machine configuration in OpenPnP will typically account for it. This step is optional, and only necessary if you are still having issues with backlash. Read the OpenPnP docs page about automatic backlash compensation here.
Set Up Acceleration Control
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Paste the following into the large text box:
{Acceleration:M204 S%.2f} G1 {X:X%.4f} {Y:Y%.4f} {Z:Z%.4f} {A:A%.4f} {B:B%.4f} {FeedRate:F%.2f} ; move to target
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Change the Motion Control Type to
ConstantAcceleration
. Note that you may want to change this back toToolpathFeedRate
when you're done running the backlash calibration.
Running The Calibration
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Next, click the
Calibrate now
button. The machine will go through a long routine (between 5-15 minutes) where it measures the machine's backlash, and determines the best settings to account for it. -
When it's done, you'll see the output data from the calibration. We suggest selecting
OneSidedPositioning
for the Compensation Method, but experiment with the different options to see which gives you the best results. -
Restart from step 10 with the Y axis selected.