@dc42 said in stepper motors out of sync only in webcontrol:

M203

So I check the Config File and the value read:

M203 X15000 Y15000 Z15000 ; Set max speed, 15000mm/min

This is was off by about a factor of 10 in all axis, must have been a mistake by the operator who did the original setup, still shocked the com execution never in countered this problem.

Thank you for pointing me to the problem!