[Kru82]

Has me stumped , but from all the various different causes will start here .

It started the other day the shift .

Did the usual check the machine x axis , moves ? fine but not fine at the same time , the travel over 600 mm was now at 602 mm and compounded further as more code is run , a reset in calibration may be a fix but still did the shift after the fact but was now at 601 mm , redo again .

Did the x/y cable swap and that brought it to the 601 mm , had some issues with the G540 and mach 3 not accepting a touch plate install awhile ago also .

Took the G540 from the other machine and although the drift in the x plus direction was way less after 600 lines of code run but was starting to do it once again now in the x/y plus direction . from what am presuming that it is not a mechanical issue but something else when you can hear the sound of it cutting getting louder .

Didn't switch motors from one axis to the other since the drift was changing to a different location in the x/y plus direction where before the G540 switch it was just the x plus direction .

Correct me if your able but it is appearing both G540s may need to get sent in for evaluation ??? Noelle from Gecko mentioned that CNC Router Parts would just send it to them anyways , was hoping for only one that was glitchy but both are looking like they are going south as a matched pair unfortunately .Attachment 310688Attachment 310690

[Kru82]

Gave it one more kick to figure this out holding out hope not to have to send the Gecko parts in .

read from a thread about bumping up the pulse rate , tried it at 3 and still no change just took longer to so the shift , tried it at 5 the last setting for pulses and so far after 1500 lines of code run , there has been no shift . Cannot understand how and why but saved from having 2 machines down , could it be that also disabled some useless windows XP services running in the background also help it to stop the X plus shift ? Who knows .

[Kru82]

All better now .

https://drive.google.com/file/d/0B91...kzc1pJNUE/view

[RCaffin]

Usually that's a noise problem.
You may not have really solved it, so it may recur.

Cheers
Roger