After you model something in CAD it writes the CNC program for you in G and M code.
Sometimes it spits out a good program that doesn't require modification. Most of the time you have to tweak it a little bit to get the desired product. For example if you change the brand of tools you use to one that cuts longer if you don't rough cut as deep and finish at a higher speed. Or if you want to modify the program to minimize "air time"
Odds are the controller for that thing is RIDICULOUSLY hard to follow. It's hard enough to follow a cell mill with 4axis (X,Y,Z, rotate forget the letters).
Like I said though, I'd like to know how accurate it is or how it's calibrated. What was cool was the amount of material it took off in rough passes without chattering.
I don't like that they picked a project that didn't have to be accurate. Lets see it make a crankshaft for like a v8 out of a solid piece of billet. Something that has ridiculously tight tolerances so that we can see how practical it is.
