Unusual problem - Y+ Axis Jamming in Jog

CNC Machines Shapeoko
1

Hi there, I have the XXL and its worked perfectly for me for the last year.

Here’s the problem - When running the Y+ is jamming. Went to test in JOG and X +&- plus Z +&- works fine.

**When I Jog the and hit the Y+ the arm jams (Racking occurs immediately). (Y - is fine).

Everything tight, Wiring looks good!

Any help would be appreciated!
David

2

I would suspect that you have one of the following difficulties:

  • loose pulley set screw: http://docs.carbide3d.com/article/169-shapeoko-3-how-to-check-the-pulley-set-screws
  • loose / bad belt — check the tension and teeth (use a mirror for the latter)
  • bad motor, wire, or stepper driver — power down and swap the connectors at the board — if the problem switches sides, bad stepper driver or wire, same == motor, then swap the wiring extension, if it switches back == bad wire, stays same == stepper driver

Whatever you find out, contact support and we’ll work this out with you as best we can.

3

Thank you very much. Looking into it now!

4

UHi Will,

Checked belt/teeth tension - all good! i followed link to carbide docs you sent about pulley set screw, it looks fine but when I went to page ther than title page it’s blank.

I don’t think it would be the above because there is no racking in Y- just in Y+ (this occurs immediately - even when I jog 1mm the arm racks immediately. Facing the machine I can see the the left side of the arm trying to move forward but the right side of arm is not moving.

**Switched X and Y wires on board - same issue (no difference!)

Any thoughts?

5

I’d remove all the belts then test each axis at a time in jog mode. If you can’t get both Y motors to move at the same time, I’d suspect the board could be faulty?

Luke

1 Like
6

Likely a problem with the stepper driver on the control board — contact support@carbide3d.com and we’ll get you squared away.

7

Thanks Luke, appreciate the help

8

Hi Will,
I’ll send a message to support. Thanks once again for your help!
David