6 mm diameter stepper motor, 20 steps/rev, 20 ohm coil resistance. I had two larger motors working at 0.7 A in x and y, plugged the small motor in z at 0.05 A (set in config file) and it seemed to work well. Then I took out the larger motors and had another small motor in, so the small motors were in x and y. Config files set currents to 0.05 A.
The motors overheated almost instantly and were toasted. Good thing I have more of them.
After repeated trials, I still can’t get the current to stay at the 0.05 A level.
Any idea why?
Imported from wikidot