Octahedron with Concave Faces (CFW 226)

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Folding instructions: Octahedron with Concave Faces (CFW 226)
This is the primary page for this model.
Paper: Eko Lux
Type: abstract single-sheet (implies: abstract, geometric, single-sheet)
Author: Shuzo Fujimoto
Colors: brown and beige

Images are licensed under the Creative Commons Attribution-NonCommercial 4.0 International License

This polyhedron is like a regular octahedron whose each face was replaced with a triangular pyramid pointing inwards. The three faces other than the base are equilateral right triangles, so these pyramids fully fill the inside of the octahedron, resulting in a skeleton consisting just of three intersecting squares. Just like a normal octahedron, this shape is difficult to photograph since only a few faces are ever visible at the same time.

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