Can't get stall detection to work on my delta.
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I cannot find a proper S value for my steppers on a delta printer for M915 command. I've tried to lower both acceleration and jerk values to quite low values(400-500 mm*s2). If I use S3 and H400, I get a lot of false positive alarms. If I use S4-5, then i still get false positive alarms occasionally, but never get an alarm if I hold any axis by hand, so it would really skip steps. I don't get any alarms with S6. I use low inductance high current motors - 2.4A, inductance 1.8mH/phase, resistance 0.8Ohm/phase. Is it possible at all to calibrate stall detection with these motors?
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All I can suggest is to use a higher movement speed and lower acceleration. That might get the motors into a range to detect the stall from backemf better and still avoid the false positives with smoother acceleration.
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@dascvcsadc are you running 12v or 24v? I've found it works better with 24v
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@phaedrux
Thanks, will try that later.
I'm running 24v.
