Annapurna from StEM modules
Model
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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




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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