Hi there,

I went to re-zero my desktop today, and when it went to go discover the Y limit switch, it shot right past and started an awful grinding noise at the end of the Y travel. I shut it down, powered everything off, and manually moved the gantry in the negative-Y direction a few inches. Since then, the keypad control for negative-Y (the "down" arrow) only moves the gantry in a positive-Y direction. Same with the positive-Y control. So, I have no way to move the gantry in a negative-Y direction.

Anybody have any suggestions?