Back side, showing the gears that connect the crank to the rotor, and acrylic feet with rubber.
CAD drawing for crank. Three layers were sandwiched together to hold a flange on the acrylic handle and allow it to spin when cranked. The top layer was reverse laser engraved.
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Wankel Engine Model
This tabletop model shows mechanically how a Wankel internal combustion engine works, and the rotor moves when the crank handle is turned. The main pieces are laser cut acrylic. Only clear and black acrylic was available and the red and metallic gray pieces were reverse painted. All pieces were sanded with a fine grit sandpaper, giving a surface that hides scratches. Text was laser engraved on specialty plastic.
