Well I haven't a clue what this machine does in specific,
but I spent the better part of 9 years being a CNC repair tech for Cincinnati Milacron and Bridgeport machines.

The CNC machine (regardless of what it does) takes a program as an input, so I would imagine once you have the part loaded (or initially started per the previous post) you hit a go button and it methodically reproduces a set of motions. Once it is done it simply stops moving. Hopefully in a clear position so you can work on the "part".

Can we get some info on this? Brand? Where manufactured? I'd love to get in touch with the owners for a write up and perhaps short video of the beast in action.

Takes a little of the art away perhaps, and is no doubt beyond a hobbyist level budget, but it is cool none the less.

--Ron--