Mostly finished 4.1 upgrade and started testing while waiting for a broken part. Tried moving Z-axis. One stepper motor works as expected the other makes lots of noise but does not turn the screw shaft. Manually raised them up to clear the screw shafts for testing. Good one spins even when I pinch the shaft. Bad one tries to spin but mostly just makes lots of chattering noise and it can be stopped with light finger pressure. Swapping plugs at the board does not help. Problem stays with motor.
1 Like
That does sound like a bad motor. I’ll DM you a code for a free replacement right now.