I’ve had my TAZ 5 for about half a year now, and every once in a while my x-axis stepper motor won’t drive the belt. I can hear the motor turning, but the axle itself doesn’t move. This results in the print job suddenly becoming 2D, ruining the print. The motor makes a much louder whine as it fails to turn the axle.
My quick fix for now is to loosen the belt and move the carriage left and right, then re-tighten the belt and verifying it works. It’ll work for another few prints (~5ish), then the problem will resurface. My guess is that I’m overloading the motor somehow, but not sure if that’s really what’s going on. I haven’t done any disassembly other than that, but wondering if other people have experienced this before.
I do notice that my z-axis is slightly out of alignment, ~0.5mm, though I highly doubt from reading other threads that this little misalignment is causing the issue. The motor isn’t hotter than the other motors (sensing by touch), and the axle on the stepper motor appears to be straight enough.
Has anyone else seen this, and if so what was the best fix?