MegaPi stepper motor driver makes stepper on my Laserbot do random unusal noises

#1

Any other Laserbot user has the same issue? The noises don’t seem to affect the engraving process but are sounding like something is about to get fried. What could be wrong with the driver?And it doesn’t always happen,it happens randomly.

#2

Hi Bleky,

You may check if the current from the power supply is stable.
When this happen, adjust the on-board potentiometer to change the current of motor have a try.

#3

Thanks,fixed!

#4