Diagnosing and fixing common CNC machine problems
| Problem | Check | Fix |
|---|---|---|
| Spindle runout >0.01mm | Dial indicator at taper | Clean taper, check bearings |
| Chatter marks | Tool stickout >4xD? | Reduce overhang, increase feed |
| Thermal drift >0.02mm | Machine warmup cycle? | Run 30min warmup, use probe |
| Backlash >0.02mm | Ball screw nut preload | Adjust ballscrew nut, laser comp |