Twin Inline Cylinder Air Engine with rotating valve
thingiverse
This is a compact 2-cylinder inline engine designed to run on compressed air. To assemble the ball bearings, you'll need ones with the following dimensions: 6.3/13.5/5 mm (ID/Od/W). To complete the engine, print the following parts: 1x Crankshaft Housing.stl 1x Cylinder Block.stl 2x Pistons.stl 5x Bearing Adapter.stl 4x Main Shaft.stl 2x Connecting Rods.stl 1x 30-tooth Spur Gear.stl 1x 30-tooth Spur Gear Bearing.stl 1x 60-tooth Spur Gear.stl 1x Valve Shaft Housing.stl 1x Cylinder Head.stl 1x Valve Shaft.stl 1x Distributor.stl You'll also need: 6x M3 screws, 30mm long 10x M3 screws, 23mm long 4x M3 screws, 10mm long 5x bearings, 6.3/13.5/5 mm (ID/Od/W) 4x 20mm steel rods 2x 15mm steel rods 1x 19mm steel rod 1x 16mm steel rod 1x 17mm steel rod Super Glue Sandpaper (Gaskets can be made from rubber sheets) Watch the engine in action at: https://www.youtube.com/watch?v=1vtM2eUzn3w
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