Thank you for the answer. I'm not sure it is noise. My drive and all cables are bran new. It is a upgrade kit sold by DMM Motion. (
http://www.dmm-tech.com/multiaxissolutions2.html). On this kit I just added and ESS board (
https://warp9td.com/index.php/products) to be able to drive the machine from RJ-45 port instead of parallel port. The addition of this board never change the behavior of the system compare to initial situation directly driven by the parallel port.
I did some test with basic code with the machine. Simple code like
G21
G00 X0
G00 X200
G00 X0
Repeating this sequence many time to see if the zero location is drifting. After few repetition it is possible to see the origin drifting in the direction of x positive. It is really reproducible. I have same behavior if I do the same experimentation along Y.
The next step will be to try to jog the axis directly on the servo drive to detect if the issue is coming from the mechanic. I will be really surprised but I need to eliminate this possibility. After that I will need a way to investigate the controller. Is someone has any suggestion to test that?
Thank you