Bill,

Welcome back I've been looking forward to your return.

Great to see your progress.

Yep CNC is not just "plug and play". You just can't scan something, put some material in the vise, a tool in the spindle and push the button ............... to come back moments later to find a completed part.

I'm in the process of learning this myself.

It still is "white man's magic" though.

Among other things a cnc mill has to be told where the material is, how long cutters are, speeds, feeds etc so that it can apply the "technogeewizery" to effect.

Computers are pretty dumb. They must be told what to do..........and if you tell them to do the wrong thing. That's what you'll get.

Verification of dimensions, machining paths, offsets and protocols all have to be right otherwise you'll end up with scrap.

Great work Bill. I applaud your progress while deploring my lack of cnc progress.