This is a gallery of 3D objects I've designed for 3D printing or laser cutting.
I usually use OpenSCAD for 3D designs and either OpenSCAD or PySVG for 2D designs.
This is an automaton I produced while working on the first Turing machine. There's a video of it working, minus two levers needed for computation, at https://www.youtube.com/watch?v=zslHoquO5zk.