Piston Fidget / Crank Mechanism Print-in-Place

Looking for a satisfying mechanical gadget you can print in one go? Check out this Piston Fidget Toy, inspired by a real engine's crankshaft and piston assembly! 🏎️💨

Simply spin the bottom flywheel (which features an ergonomic thumb indent) and watch the piston slide up and down with smooth, mechanical precision. The top of the frame is styled with cooling fins that double as a great tactile sensory surface for your fingers.

Model Features:

• Print-in-Place: Prints as a single integrated piece. No assembly or extra hardware required.
• Pocket-Sized: Fits perfectly in your hand, making it the ultimate stress-reliever for gearheads.