Cog in the Machine includes overlapping open hexagon twists. When these twists are star puffed, the edges interlock, like gears. Additionally, the closed hexagon twists can be pinwheeled (or petaled) for additional gear shapes.
Recommended starting dimensions: Hexagon paper 24cm diameter or larger; 32 triangle grid density or higher.
Top plane view, open hexagon twists flat.
Bottom plane view.
Flourished version: This crease pattern shows the pinwheel flourish that can be added to the closed hexagon twists.
Top plane view, open hexagon twists star puffed and closed hexagons pinwheeled.
Bottom plane view.