Wow, what a cool set up!! My guess is this guy works in a model shop for a manufacturing firm. Back in the 80's I worked for an electrical conduit / wall surface wiring manufacturer and their model man would do stuff kinda like this. Start with a block of nylatron or similar material and make prototypes on a high dollar Bridgeport mill. I wish I stuck it out at that job, as I had access to not only the model man's knowledge and equipment, but also the electrical testing lab where the electrical brainiacs did their thing... I could have apprenticed for the modeler job too. Dang.. why did I leave?