[Smokey911]

Lube looks good, I will keep the option open for Gibs being too tight, it should not be but you never know...

Gibs too tight? Adequate lubrication?

If you have tried swapping drives to no effect, you can also try swapping motors x to y.

[philbur]

It should take you thirty minutes to check if it's the controller, the driver, the motor or the wiring (it's called fault finding by substitution). Then call Tormach.

If you must have minimum down time you should have bought a spares kit:

Spares Kits | Tormach LLC | We provide personal small CNC machines, CNC tooling, and many more CNC items

Phil

[Smokey911]

Thanks...

[Smokey911]

Tried out machine and as before, there are no symptoms to start. All axis's work fine, including the Y axis where the trouble is. I had to finally start a job and it worked fine to start. 10 minutes into it, the cutting path went wacko and then hit the Y limit as before.

At that time I reset it and there were no signs of a problem, that is because the y axis worked back and forth fine like nothing ever happened. At that point I decided to go back to my starting point (0,0,0). When I did that my x was fine at 0, my z was fine at 0, my "Y" axis was over 2 inches off of the zero mark! That was not remotely close to where it should have been.

Still all 3 axis' worked like nothing ever happen. I jogged over and over again on all 3 axis's until I got the y axis to start acting up again by moving in only 1 direction no matter what way I commanded it. When that happened I switched they y driver to the x driver by switching ribbon and power cables, it started working again in both axis's. What was perplexing is that the x axis now switch with y worked fine also. That could be because it started working again as the y has went in and out in the past itself.

Started up machine again zeroed it again, went to cut part again, then 8 minutes into it, the path went burzerk again and then hit the y stop. Went back to find home position again and x was 0, z was 0 but y was over 4 inches off...

Seems like the driver to me, what do you all think???

[philbur]

Physically switch your x and y drivers then air cut your part several times.

Alternatively replace your suspect driver with your A driver and then air cut your part several times.

Phil

[SteveKoerner]

My suggestion is to leave it in the reversed X-Y driver condition. If you never see the problem again, well, your problem is solved. If the same problem manifest at the X then you have a definitive diagnosis that it is the driver, If it manifest at Y then you know you can rule out the driver as the problem. If you don't do this, then you haven't proven anything.

[Smokey911]

That is what I did not do, leave it in the reversed driver boxes, I will try that tonight...

My suggestion is to leave it in the reversed X-Y driver condition. If you never see the problem again, well, your problem is solved. If the same problem manifest at the X then you have a definitive diagnosis that it is the driver, If it manifest at Y then you know you can rule out the driver as the problem. If you don't do this, then you haven't proven anything.

[Smokey911]

Okay, went home physically took out wires to drivers, unscrewed and re-tightened all wires from scratch. spent a few hours doing that, put drivers back to correct axis's. Prayed and gave it a go.

The problem did not present itself anymore. In fact I worked non stop for 3 hours without any erratic behavior.

Looks like problem is solved... Thanks for all assistance... :banana:

[zephyr9900]

I'm glad to hear of your success, Smokey. :cheers:

Randy

[zephyr9900]

Seems like the driver to me, what do you all think???

From your description, Smokey, the problem has stayed with the Y axis even after switching drivers. I still suspect the output wiring between the driver board and the Y motor. There is at least one plug in the wiring between the board and motor. That is where I'd look first.

Randy

[Smokey911]

I will also be trying to pinpoint that as well. That is what I was told by Tormach, they are betting that it is a wire, maybe the ribbon and to check them all again. he gave me an ideal and that was to run the program and at the same time move the wires back and forth and if I have a loose wire hopefully it will pick this time to act up. This will help me to pinpoint it. This is killing me...

I will be laughing about this one day....

Hopefully I will find the solution this evening...

From your description, Smokey, the problem has stayed with the Y axis even after switching drivers. I still suspect the output wiring between the driver board and the Y motor. There is at least one plug in the wiring between the board and motor. That is where I'd look first.

Randy