@jay_s_uk You are a beautiful human being! Worked like a charm. Motors sound perfect. Many, many thanks for taking the time to share your expertise.

@jay_s_uk You are a beautiful human being! Worked like a charm. Motors sound perfect. Many, many thanks for taking the time to share your expertise.

@Phaedrux It can run either. I've had it set at 12v from the beginning.

@jay_s_uk I will try that, thank you

@dc42 12v in. Basically, I took an ender 3 s1 set-up (gantry/motors/hotend) and am running it off my new duet 3 mini

I just received and installed my new Duet 3 mini 5+ board with RepRap configured firmware. Everything works except that the motors make a loud and annoying squealing/screeching noise with current applied. When I turn off current to the motors, the noise goes away. The motors do move along their axes but with what I would consider to be less than ideal motion.

My config has the motors at a current of 800ma and I have tried with interpolation/no interpolation/stealthchop but nothing helps.

The motors themselves seem fine and work without noise with my old duet 2.

Any thoughts?