[Washuu]

Hmm.

Those settings are the same as mine. Doesn't bode well for your BOB unfortunately.

You might be able to assign the Z DIR pin to a spare output pin on the BOB but it'll mean cable surgery.

Thanks. I will pull the MCC(I guess that is what you mean by BOB?) out of the box tomorrow night and put it under my oscilloscope. The worst case of losing one spare output pin that I would not have used anyway to repair the Z-axis is better than shipping the control box back to China for replacement.