Z axis spindle not moving up and down

Hi - New to cnc, Everything was working well yesterday.
This morning - unit would not come to home and z axis will not move up and down, others are fine - spindle is rotating. However, the top belt is not moving and can not be moved manually. I can hear it trying to move - it’s like it’s stuck in the top position. Maybe went too far and is now stuck.

Any ideas? Thanks!

1 Like

When you first start the homing the Z axis is the first thing that should raise up, then the X and Y.
Is the Z axis all the way at the top? If so turn off the power and manually lower the Z axis, then turn it back on and see if the Z axis raises and touched the homing switch. If no power is going to the stepper motor you should be able to move it manually. Unless a wire came loose somewhere
Russell

1 Like

Try what rustle said, also another possibility if the sound is not a grinding sound, Is that the set screws holding the pulley to the stepper shaft could be loose and the stepper rotating in the pulley…

This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.