PCB Mill

After many delays and set backs I’ve finally gotten a working, reliable PCB mill. In the first post I did of this, I used V bit’s to get better resolution of the tracks. The height issues remained and I was unable to get the auto bed leveling working on the Marlin firmware. What I did to fix the multiple issues: I found the X and Y couplers were a poor choice, as they were acting like large springs. I added lock nuts to the far ends of the X and Y axis, on the outer edges to pull the couplers tight and prevent X and Y axis from springing back when they moved. I removed some PLA from the Z stepper mount to make way for the extra spindle length. That was not enough so… Read More »Desktop PCB Mill