this may or may not be the proper former to discuss cnc stuff…

why does mastercam have such a lock down on their software and training material?

There are barely any resources for teaching books available and this is supposed to be an industry standard cnc software.

They probably want you to pay to take classes so they can make more money. When is Google going to develop free software for every industry?

SketchUp is a start, but keep it coming Google!