I just got some steppers from china. One has visible stuttering at the beginning and ending. Here is a quarter speed video:
Any ideas? The movement is perfectly smooth once it gets up to speed.
TinyG has no such problems with my other steppers.
stuttering stepper
From the original Synthetos forum (2011–2025)
You might also say none of you other steppers have problems with TinyG :) I can't really comment on the motor. It might be sensitive to power levels and/or microsteps. Have you played with them? Also, is the step angle set up properly?
I tried setting microsteps to 1 ad 8. Step angle is correct at 1.8. I tried several power levels. I took off the planetary gear, and the problem is in the motor, not the gearbox. My other motors seem happy with TinyG.
I am trying to remember how to drive a motor right from an arduino, to have better control of each step.
Can you provide information about the motor and where you got it? Did you only get one?
Sure. I bought it from StepperOnline.com. It has a 1:13 planetary gearbox. I bought only one. It is above average in quality compared to my other steppers.
Here is another slowmo video: http://youtu.be/CVxtsTw1AF4
Thanks,
Tom
Do you happen to have a part number? THey have a lot of steppers on that site! Good find.
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