I came here for the same problem, my Z motors started vibrating during a print, and now they invert direction randomly. Checked the wires and everything seems fine, switched to different motors and the problem persists.
Unfortunately my board is a bit more… weathered, so it may not pass a warranty check
Do you offer paid repairs also?
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RE: Z steppers/driver malfunction?
So, I want to heat my P3Steel's chamber. Right now the "chamber" is simply a cube that encloses the whole printer, electronics and all (except the PSU). Without active heating it gets to 35°C, I'd like to get it to 45-50°C for more difficult filaments, but is dangerous for the Duet Wifi? I have a fan on it.