Lowrider 4 CNC Z1 motor moves slowly

Ouch. Guaranteed binding and slowness. Really difficult to find, but well spotted.

Congrats!

I still think you have something going on with the steppers. That video you uploaded of it spinning shows it has a problem.

Your steppers should spin very smooth.

They do spin smooth, the problem was the screw. So because the threads are so “horizontal” and lifting the weight of the rods and frame it would seem jittery. With the new screw on, it moves and operates soooooo nice

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