Trouble initializing

Software Carbide Motion
1

So today I replaced my left side y motor after the shaft had broken. I ran two different programs to surface this mantle board I had sitting around. After the second one finished up(no problem) I turned off the machine and went to working on another project. I come back out and now whenever I go to initialize it goes kinda crazy. I have videos but unsure how to use on here. I undid the belts and resquared the gantry because the Y left was reaching the limit considerably later then the Y right. I uploaded a video of it when I’m rolling it and it rolls without issues: it seems as if the belts are where the issues come in but unsure. Please watch and help me out it’s so appreciated thanks

2

Check your wiring and connectors for the Y motors. Looks electrical to me.
Also check that your pulleys are secure on the motors.

1 Like
3

Went over and did not see any issues with connectors. Whenever I turn the machine on I can hear that both motors are humming as they did before.

4

It appears the side furthest from the home switch is hitting the back of the frame before the home switch is made if you hopped a tooth or several on one side they could just be out of sink. How does it sound if you remove the Y belts? Do both motors spin in the correct directions and smoothly? If this is OK inspect and reinstall the belts with the gantry squared up and see how it goes.

5

I’ll try again when I get back to the shop. I squared the gantry when I noticed that. It’s almost as if when initializing the right side motor goes forward or hiccups and that’s what throws it off? I noticed the Left side usually begins heading back instantly.

6

Seems to be a Y right failure. I’ll attach the link just to confirm. That’s the second motor that’s gone out on me already🤔Y motor

7

That type of failure can be a bad motor, bad connection in the wire harness (open in one of the phase wires), or a bad stepper driver on the control board. A bad motor would seem to be less likely. I would try to swap the YL and YR motor cables at the control if possible (I have a 3XXL where they are all the same). If they can’t be swapped due to pinout differences then swap the motors. If the motor runs OK with the wire harness and driver from the other side but the other motor acts up it would be a harness or driver issue. ideally work thru the matrix of known good versus questionable items to run down the offending item. You can also use an Ohm meter and disconnect the cables at the control side to measure the wires thru the motors. You will have two pairs that should have similar resistance. If you can’t find 2 pairs then repeat the measurements at the motor connector. If the motor has two pairs there is a broken wire or bad connection in the harness.

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