Motor stutter on move

**tri4sale** · 08-18-2025, 09:44 PM

So posted on FB this problem but wanted to reach out here too and see if any ideas:

Any ideas on troubleshooting this grinding noise. Does it in normal speed move, but when I move in jog mode it doesn't make the noise except on start and finish. Video shows first move at normal speed and then second move is jog speed.

UPDATE - 8/18 - tried another computer, exact same problem. Unhooked the motors and tried and you can see the motor struggles for a second to start spinning, then spins and makes an noise. Swapped the two "x" axis motors and this one makes the noise no matter which wire harness attached to so I'm thinking something has gone wrong with this motor. Can these even be purchased anymore?

Videos can be seen on Facebook since I can't post them here (need to upload to Youtube first apparently) https://www.facebook.com/share/g/1C7VoU2waM/

**ken_rychlik** · 08-18-2025, 10:52 PM

A lot of folks are changing to centroid acorn controllers, so there might be some motors available from them. You may can use vexta PK296A2A if you can find the correct gear ratio. If you just find one and it is not the same ratio, you can use your y for one of your x motors and put the odd one on the y. You would have to adjust the software for the correct distance moved