Z axis grinding on initialize

This started happening right after I finished this guitar neck. Stopped the parallel cycle and then it did this (see attached video). What do I do?

FWIW - it also seemed to be struggling to move up and then did some and then kept grinding right after I initially stopped it.

You are probably not holding your tongue right.

Just kidding…

Sounds like it may be binding. Turn off the machine and check to see if the drive screw is turning freely and the Z is moving correctly without binding. If so, try some machine oil.

If you turn the leadscrew manually are you able to move the Z plate down ?
If you can try and look into the space between the moving plate and the fixed plate. There have been a couple of cases on the forum of the leadscrew nut attachment getting loose, and then getting in the way of the movement.

EDIT: I mean like this:

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It won’t turn using my hand

Get in touch with support@carbide3d.com, they’ll know what to do next

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