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15 Mar 2023

Trefoil Icosahedron

 

This piece is a chiral icosahedron composed of 150 strips. 


Each of the 20 triangular faces contains a pinwheel structure with 3 fins.


The outer surface is a 3-fold icosahedron, and the inner surface is 2-fold.


Despite its solid appearance, the geometry is entirely surface - no enclosed volumes.


This structure is extremely rigid, which makes the origami exceptionally strong. 


It's a very satisfying design, with each face reminiscent of a Celtic knot. 

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