Miniature Single-Cylinder Engine Made Out of Paper

Aliaksei Zholner built this small, single-cylinder engine entirely out of paper and this thing of marvel even works! Aliaksei shared his build process on the Russian forum, only-paper.ru

Specs below:

LxWxH: 18 x 13 x 22 mm
Shaft diameter: 0.5 mm
Piston stroke: 3 mm
Cylinder diameter: 3 mm
“Swept volume”: ~ 21 mm3

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