My Z stepper will buzz but wil not move, or will move partially after some buzzing, as if somethign was causing much resistance to it moving, any hints?
Sounds like a wiring problem.
Man! I hate it when my nuts… nvrmind, not gonna say it.
I had a similar issue. Motor and belt was turning, but axis wasn’t moving. Both times I retightened the set screws attaching the acme rod to the belt and I was back in business.