Monocrystalline Diamond Machining
(www.youtube.com)https://www.youtube.com/watch?v=ZPTFFPLOzCwThe official goal is to create a mirror for a Magneto-optical trap, which is a way of corralling some atoms at close to absolute zero. But the video is all about the machining technology, using his cheap, slightly yellow, monocrystalline diamond, and turning off spindle rotation to try shaping.