High Pitch Sound from Motor

Machine: K40 with Nano

Board: Laserboard

Firmware: Smoothie

Problem/ Question: I just installed my new board, and before doing any cuts I noticed that there is a definite high pitch noise coming from the motor(s). I haven’t determined which one, but I only really notice it when the laser is off. I did not notice this with the Nano board.

I have done a few cuts and it seems to be working ok, except for the high pitch noise.

I wanted to see if that was “normal” or if there was something I could do to adjust it.


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