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This is a model of 3D printed key chain.It is fully operational but will require at least 40 PSI air pressure. The forces of friction prevent making this engine smaller than this. On the top it gas an opening for inserting key ring.
0.2 mm Layer height. Flywheel requires printing wit supports.
This article was first featured at https://cults3d.com/en/3d-model/gadget/key-chain-air-engine on July 15, 2020 at 02:10AM by
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