We've got a chinese laser that worked for about a month, then the one axis started stuttering (press the jog button and it vibrates loudly for about 5 seconds then finally starts to move) through the help of some people on this forum, and after switching some cables around etc. We determined it was the drivers because I connected the known good driver to the axis that was misbehaving and the axis worked normally them. unfortunately, after a few months of waiting for replacement drivers to get shipped in, we now replaced the driver and have the exact same behavior. So this time, I switched the supply of the bad axis to the driver of the good axis and the problem followed suit. So I know it's not the motor, not the driver, and not anything mechanical.. Does anyone have any ideas of what's next to check or replace? or maybe some way to test the electronics to find where the problem is? It's somewhere after the controller (using LaserCut software, I think it's an MCP6515) and somewhere before the driver. please help!
Thank you!