After a few weeks of having my machine and doing many 3D prints I encountered an issue with the Z axis not moving up/down. After doing some troubleshooting tests (switching the Z & X cables/ports on the controller) It was determined by support that the Z axis port had “gone bad” and they sent a new controller module. Great! It worked for a quite a few prints and then mid-print the Z axis failed to move up/down. Same tests pointed to same problem!!! Support said that I must have unplugged the cord with out turning machine off…it was mid-print so I know that wasn’t the problem. A couple other owners suggested a problem with excess grease in the limiter switches so I suggested that to support and they sent pictures of how to open the end of the linear modules to clear the excess. Did NOT help. I had to pay the shipping for the 2nd replacement controller which arrived today…still not working. Please help me troubleshoot.
When I switch cables/ports then the touchscreen allows me to move the Z axis with the X commands; so I know it’s not the cables?