Z axis grinding and will go both directions when pressing Z+ button

All of a sudden at the start or in the middle of a job, the machine will not go down on z and stay on the same pass. it makes a low grind noise and continues.
The other is when pressing the Z+ button< the machine will randomly go up or down.

Already upgraded to 1.0.7 and the issue was occurring prior to the upgrade

hopefully someone has an idea of what is causing it.

Hello @BTAPIA1 - generally truly “random” things with CNC machines are mechanical in nature. Check your wiring and connections.

Does the machine do ‘random’ things when you are moving it manually? Or only during a cut?


Thanks for the response! It does it both manually and cutting . Wires are all connected that I can see.