Quote Originally Posted by winegummo View Post
thanks. quickly tried that and still the same. don't think its the motor though. when I switch connectors with another axis it has the same problem.
If when switching connectors, the problem stays with the motor ... troubleshoot the motor. If it stays with the driver ... troubleshoot the driver. If it's following the electronics, then you may have a loose connector or a blown driver chip. Check the connectors first. Power supply could also be a problem, but the issue is only on one axis.