3D printed Air Engine

3D Printed Compressed Air EngineThis model is a mechanical compressed air engine fully designed for FDM 3D printing. The engine converts compressed air into rotational motion through a simple, high-speed internal mechanism. Once assembled correctly, it is capable of very high RPM and produces a distinct mechanical sound during operation.The design prioritizes printability, ease of assembly, and durability, using standard metric hardware and 2 common 608 ball bearing for smooth rotation and reduced friction. All structural components are 3D printed, with metal hardware used only where strength and wear resistance are required.This is an original design, created and tested specifically for hobbyist manufacturing using consumer-grade 3D printers.Design FeaturesFully mechanical (no electronics)Optimized for FDM printingUses threaded inserts for strong, repeatable fastening2 608 bearing-supported rotating assemblyDesigned for compressed air inputRequired ToolsHammer (for press-fitting compo