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#13722 |

My biggest worry is that I don’t believe the pcb blank itself is perfectly level. I did plane off a wasteboard already, so it’s already perfectly level with respect to the tool head… My experience with pcb blanks though is that they aren’t flat to within .01mm… Since that’s how far I’m drilling, a .01mm variance is the difference between a trace and no trace…

The other thought I had was to mill a pocket and then put a small vacuum line under it so that it would suck the board down flat… No vacuum pump in the parts closet yet though…