Issues with laser loosing placement.

Hi Guys,

I'm having a serious issue with my 120w Trotec that's been going on for about 2 weeks. The engraver seems to be loosing it's place whenever it cuts/engraves a complex file. I can open the same file on my 80w and it runs fine. but when I run it on my 120w it always looses it's position about 25-50% of the way through the file and starts cutting in a new place slightly off from where it should be. (not limited to just one file btw, it's happened with about a dozen files now). Also many times the laser has forgotten where the x/y is after it's messed up as shown in job control, it thinks the x/y is in a completely different placement than it really is. Once I close job control and restart the laser it resets back to the correct coordinates but still messes up on the next big file I run.

Trotec has sent me parts 4x now, an I/o board, an x/y motor, an x/y controller board and one other piece I cannot recall. I've replaced the usb cord. I reinstalled job control, then today I even replaced PC and had the electrician come out and run us a new wall electrial for the laser just in case it was some weird grounding issue or something. At this point I think even Trotec's stumped. I've been down 13 days now. I spoke with my rep today and called in the reinforcements and he's coming out next week, but I thought I'd ask on here if anyone has an idea so we make sure to have the right parts on hand. Has anyone ever experienced something like this?

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Issues with laser loosing placement.