I’m having a hard time getting the MPCNC to be as accurate as when I first set it up. As you can see in the picture, it’s leaving behind lines. It’ll also shake as it moves past certain regions. Not chatter at the bit, but big rumbles that shake the rails.
I’ve tried cleaning everything as best I can, including getting gunk of the bearings, and tightening the bolts on the core. What am I missing?