@hybotics If you don't have a bit of extra clearance, it will be extremely tight even if my tolerances are spot on. And if my tolerances are off by even a tiny amount to make the hole too small, the screw won't go through at all.
@hybotics I imported your files and they look good. Before I cut, you should verify that the diameter on all of your holes includes clearance. If you have a hole that an M5 screw needs to go into, it should be 5.7. Or m3 should be 3.5. Etc.
@hybotics If you have dxf files, send me links here or via pm. And let me know what the units are. It might be good to include a square of a known size so I can use it to ensure that I imported in he right scale.
@johngordon I can well understand that a typical laptop (Windows or Mac) would be hard to lock down to protect Explorers. Have you looked at the Chromebooks? Since they are explicitly made for the education market, it seems like they'd be a possibility.
@jws Most art/craft show CNC is actually wood. I think that this is the modern assumption that wood things are inherently more 'hand-made' than other materials. But there are crazy 3d printer materials out now with wood, bronze, brass, or iron in the mix.
@larand Thanks. Luckily, she noticed when I pinged her here. I didn't expect that to work. :-) She is one of my suppliers and I was suddenly a bit panicked when I couldn't reach her to order more stuff.