What's a great way to test freshly learned CAD/CAM skills? By trying to build a supercharger for a Pontiac V6, of course! Specifically, with a two-part aluminum case, and carbon fiber reinforced HDPE rotors. It was a ridiculous endeavor, and despite many all-nighters we -- a 3-person team I led -- never got to properly test and finish it. But we did rapidly learn a LOT about 3 and 4 axis CNC machining!