Annapurna from StEM modules

Model April 1, 2015 April 18, 2021
…/uXg99f …/PAV7Bm …/465240220308498 …/737791069720077
Folding instructions: Sturdy Edge Module, Annapurna
This is the primary page for this model.
Paper: metallic paper
Type: modular woven polyhedron (implies: abstract modular, abstract, geometric, mathematical object, modular, multi-sheet, woven polyhedron)
Author: Robert J. Lang
Units used: Sturdy Edge Module, by: Dirk Eisner, Francis Ow, Michał Kosmulski, other/uknown, Tomoko Fuse (using SteM units (4:1 paper) instead of Robert Lang’s original units)
Unit count: 30
Colors: gray
In albums: Models with 3D anaglyphs, Modular ② — medium number of units

View showing the model’s symmetry — Images are licensed under the Creative Commons Attribution-NonCommercial 4.0 International License

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

Annapurna (also known as ten intersecting triangles or 10 × 3 × 1 polypolyhedron) was designed by Robert Lang, but the model presented here uses my Sturdy Edge Module rather than the module described in author’s original instructions. StEM can be used as a replacement in this model because it has the same 90° angle at the tip and results in the same width-to-length ratio as the original unit when folded from 4:1 paper.

The straight-down angle in the first picture shows the dodecahedral symmetry of this wireframe polypolyhedron as well as the small woven icosahedron hidden below the tangled layer of spikes.

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