I’m still having problems with my z-axis, so I took a video to show what’s happening.
First off, my z axis is working perfectly when I control it manually. Whether I do it through repetier or with the LCD board, both motors work fine. All axis work fine, in fact.
But when I run an actual cnc program and all axis are moving, that seems to be when things get messed up. In the video you can hear the grinding sound. The router is off so it’s otherwise quiet.
By the way, when I disconnect and power down the motors, its very easy to twist the screw to move the axis up and down so its not super tight. And as I mentioned, everything works fine when I control manually.
Any ideas? I’m at a loss for ideas right now.