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i appear to be finding more issues than solutions at the moment!! just opened the black box at the back of the machine and noticed the below. ...

heres an interesting development. so when the z is at its height it would be machining at i get this z movement issue. if i lower the z right down...

now done this and its not made any difference

Finishing the main motor plate and starting the electronic test bed . . .

I wondered if you're getting issues from having the boards sitting on that pink bubblewrap. It's antistatic, hence may have some level of...

no, it only happens when the spindle is on

I've tried grounding my cnc but problem still opccurs. Remove dust collector too just to rule that out. Grounding wiring.

Any chance that it is a coupling or pulley slipping? Engraving - especially if you are V-engraving - tends to generate a lot of Z movement which...

All thoughts welcome

No progress. Company in Ireland will look at it for £200, then there would be fox costs. We would need to post Scotland to Ireland etc . No...

Ummm. He posted this ad almost ten years ago mate..

Hi Brian, We have a DSC 2000 that is showing the same symptoms. Did you ever find a remedy to the issues you were having with yours? Thanks ...

video https://youtu.be/stbWpra7O_4 so you can hear the z stepper moving the z axis

not been in the cabinet for a while, its still messy :hopelessness:

This is positive news. I will see if I can find a manual for it online before I next have a chance to look at it. Thanks I will report back,...

Those tests would indicate that the wiring and the spindle appear to be OK. Might be worth trying a factory reset on the VFD.

That potential cost is why I swapped my spindle motor for a servo.

well nearly original ;) original stepper drivers. cant get a photo till im back in workshop tomorrow now, its a bit messy inside be warned. ...

Not that original then. What stepper drivers are fitted? A photo of the control cabinet would probably be good. My thoughts to it having only...

all original so stepper and ESS running mach3 (PC) ive owned the machine for over 10 years now and not had this issue before, had many others....

Stepper or Servo machine? Fanuc or PC control?

yes all original. its a difficult one to know where to start

Sounds like interference is getting into the Z step/dir signals.. Is it still the original spindle?

so an update with spindle off and z in the air. if i move x and y around manually z doesnt change. if i start the spindle and dont touch...