After failures attempting lasing gratings, finally designed mold in @adskFusion360, laser cut acrylic plates (variable thickness) w/@glowforge, turned rods w/Grizzly G0765, CNCd diffraction grating w/@Inventables Carvey, tempered+pressure injected chocolate, pulled vacuum @ 4torr pic.twitter.com/pKsS1tuV7e

— Samy Kamkar (@samykamkar) May 11, 2020