My motor just vibrates in place
What have you done to diagnose the problem? I recommend taking the belt off to see if the motor turns when jogging. This also gives you an opportunity to feel how tight the V wheels are on the rail.
Check all electrical connections from the stepper to the control board.
Check the pulley set screw. One screw should be in the flat.
Check belt tightness.
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Second the pulley set screws and the belt condition. Here is a doc I created about troubleshooting proximity switches but the second part is about adjusting v-wheels.
homing_problems.pdf (1.2 MB)
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