W12 Fidget engine keychain

If you want to sell this print, get commercial license via patreon https://www.patreon.com/c/Artemix796   After a lot of requests, I finally made it — a W12 engine block fidget keychain! Turn the flywheel and watch the pistons move inside the cylinders. The mechanism is designed to be satisfying to play with while also looking like a miniature mechanical engine.  Features: Functional flywheel mechanism Moving pistons Prints completely without supports Cylinder firing order is the same as on a real W12 engine Designed as a compact keychain  asy to customize with different filament colors Printing recommendations The model can be printed without supports. For the camshafts, I recommend using PETG. It provides better durability for the moving parts and should handle repeated use better. Important: I also recommend adding a small amount of lubricant to the camshafts during assembly. This will make the mechanism smoother and reduce friction between the moving parts. If you print one, I'd love to see your make!   What engine should I make next?