November 13, 2025
Description
The wobbler engine is a fully functional, fully 3D printed oscillating air engine capable of spinning over 6000 RPM! This compact mechanical marvel demonstrates the principles of oscillating motion and pneumatic power in a visually striking design. Perfect for mechanical enthusiasts, educators, and anyone fascinated by high-speed engines. Watch it spin up to incredible speeds when connected to an air supply. Ideal for display, experimentation, or as a functional demonstration of engineering in action.
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The engine may require slight sanding of parts to get the correct fit and super glue to connect the two halves of the flywheel to the crank. I strongly advise using glue stick on the print bed for better adhesion for the tall parts. I use a modified 2L drink bottle pressurized to 20 psi with a bike pump.Â
THE MAX FOR THIS ENGINE IS 50 PSI.Â
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Feel free to ask any questions in the comments!
License:
Standard Digital File License