With all the discussion about the kerf of the laser and how tight the tolerances would be, I came across this video and thought folks would find it interesting:
I was not familiar with wire EDM but it sure can do some fascinating things. Maybe Glowforge can work on a hobbyist EDM machine next
If you want to go down the rabbit hole of accurate machining in a home shop, check out Stephen Gotteswinter and This Old Tony. They don’t get down to tenths very often, but they know how to do it when they want to. Fascinating stuff.