Fidget inline 6 engine keychain

V2 Version released! 19/06/2026 : Now better printing and better tolerance! ⚙️ Mini Inline 6 Engine Fidget Keychain Gearheads, mechanics, and classic straight-six fans (BMW, 2JZ, RB26...), this one is for you! Bring the most inherently balanced engine configuration straight to your pocket. This functional fidget keychain replicates the iconic movement of a real inline-6 engine in an ultra-compact form factor. Spin the crankshaft and watch the pistons move smoothly in sequence. It's the perfect mechanical anti-stress companion for car enthusiasts. ✨ Key Features Satisfying Fidget Action: Smooth mechanical movement designed to keep your hands busy at your desk or on the go. EDC-Friendly Size (Everyday Carry): Optimized footprint to fit comfortably on your keyring without adding unnecessary bulk. Durable Design: Tolerances and wall thicknesses have been carefully tuned to withstand daily pocket wear and tear. Bambu Lab Optimized: Tested and proven print profile for a clean, hassle-free printing experience. 🔧 Assembly Guide Step 1 (Pistons): Insert the pistons into the engine block cylinders. Step 2 (Crankshaft): Press the crankshaft into position through the block. Step 3 (Casing): Close the bottom casing (oil pan) and secure it permanently using a few drops of glue. Check also my 5 cylinder version for Audi fans! :