On: Show HN: CNC Microscopy for Fun

[2four2]

This is basically how an optical CMM (OMM) works. There are tricks to determining and calibrating out alignment issues and determining snapshot viability, and you're touching on both of them. Very well done!

[anfractuosity → 2four2]

Thanks, I assume https://en.wikipedia.org/wiki/Coordinate-measuring_machine is what you're referring to, which look interesting, hadn't come across them before.