Hello,
I recently purchased and setup a Shapeoko 3 XXL. I followed the instructions very closely. I’m having trouble with the Z axis. I can jog the other two axis’ but the Z doesn’t move. The belt is moderately tensioned, not too tight not too loose. I’m inclined to think this is the controller and not the motor as I tried swapping the X and Z connections on controller, once I did this I could then Jog the Z axis but not the X axis. Which narrows down the problem to the board, or so I would assume.
I’m new to this so I’ve already spent hours trying to find a similar situation documented online, but I haven’t found any solutions, besides adjusting the current which I’m not ready to do yet. Any help would be greatly appreciated.
Thank you.
Hi gaslight,
We found a bunch of reasons but they do not seems to be applicable to your situation.
To be safe, can you verify the following ?
- Make sure the axis move freely and the excentrics are not too tight. (HERE)
- Verify the set-screw on the pulley that connect to the motor (HERE)
If the Z axis motor is moving when connected in the X axis output it might not be the case but it’s safe to verify first.
Do you have the limits connected for the Z axis ?

Hi Dia,
Thanks for getting back to me so quickly. I double checked the items you mentioned and everything seems to be in proper order. I have the limited connected but I haven’t been able to do the homing procedure due to the one axis not operating.
I’m stumped .
Hi gaslight,
Try to remove the switch from the controller as maybe the switch give a limit feedback (that just a try).
If that’s not helping it would be possible that the board is defective but we will ask Carbide3D aboutit.

I believe that you have either a bad stepper motor driver, or a bad wiring extension (it’s also possible that the latter did in the former)
Please test this by swapping the Z-axis wiring extension to the X-axis stepper driver and motor, and then connecting the Z-axis stepper driver and motor using the X-axis wiring extension — if the X-axis fails to move, it’s the cable, if the Z-axis doesn’t it’s the stepper driver, if both stop moving, we’ll replace both — please let us know.
Hi Will,
I just tried swapping the X and Z at the end of the extension near the motors and it had the same result as swapping them on the controller. The Z begins to work but the X does not. I’m assuming we can rule out a defective extension cable?
Just wondering if there were any more solutions to try or what the next step was if the controller is defective?
Thanks!
Hi Scott,
We did a follow up with Carbide3D this morning.
They should get in touch with you very soon.
All the best,
Thanks! Looking forward to getting it up and running.
Hi Scott,
According to Carbide3D the issue would be the controller board.
They will be sending a replacement to you today.
All the best