obra’s Twitter Archive—№ 44,337

Modeled as a circle in Fusion 360, extruded, filleted, and shelled out. Then cut on the CNC, which was acting as a sort of reverse lathe, if you think of the endmill as stationary, with the universe spinning around it at 18k RPM.

https://pbs.twimg.com/media/FGsMEFeVIAMtckG.jpg