When I got my first 3D printer one of the first things I learned, in a surprising twist, was how great they are at printing flat things.

The mini linear motion volumetric display is pretty neat too. https://www.youtube.com/watch?v=KgT20tHpk1g

Reminds me of Henry Segerman's expanding racks. Geared crazyness! https://www.youtube.com/@henryseg/videos

Thanks for sharing! I absolutely adore the meshing of mechanical engineering and origami. I cannot believe I never considered it.