I’ve been having issues with the Z Axis since build. Posted and received help here on these past issues. Machine has only done a few test cuts.
Today I was attempting to set up new software and noticed that the Z had a loud grinding noise, and that the spindle shaft of the stepper motor would sometimes not turn. At first I thought the gear was loose on the shaft. Verified this was not the case by moving the Z while watching the stepper motor shaft in the gear. Neither would turn.
I shut off the machine to take power off the stepper and turned by hand to ensure there was not a physical reason for it not turning. Z turned easily (Nema 23), but was extremely hot. I also verified that z was set to 2x microsteps on the gSheild.
Could the stepper motor have gone off this quickly, or should I be checking for something else?