X and Y axis steppers move in opposite directions

Mostly Printed CNC - MPCNC Troubleshooting
1

I just got my monster MPCNC (24" x 48" working area) all built and wired up.

I haven’t put on my belts yet because when testing the steppers via Cura I noticed the X and Y axis steppers are spinning in opposite directions from each other. Anyone have any idea how to fix this?

It seems like a wiring issue since the X and Y steppers are linked with the MPCNC kit wiring harness. This is my last day off for the holidays, so I would love to get this thing working today.

I attached a video of the X-axis steppers with tape flags on the shafts for illustration purposes.

2

Flip the far motor plug over in the harness. With the power off

3

Yeap, that fixed it (Feeling pretty dumb now, but at least that was an easy fix).

Thanks @vicious1. BTW, really nice work on the MPCNC! Works better than I thought. Excited to get some dust flying from this thing soon.

4

Sweet, it happens to all of us. I almost broke the LowRider CNC that way on the very first move…I got cocky.