Fidget engine keychain

If you want to sell this print, get commercial license via patreon https://www.patreon.com/c/Artemix796 Mini v6 engine, pistons moving up and down when you are rotating the gear. I made it without piston rods and crankshaft to avoid complications in assembling and printing, i am using camshaft instead. Easy to print, easy to assembly. Great for car fans Assembly notes: Short video on instagram artemix2006 All printed parts fit tightly together after printing, ensuring a solid and stable construction.