Spiked Icosahedron (StEM face variant)
Model
Folding instructions:
Sturdy Edge Module
This is the primary page for this model.
Other folds and variants:
Spiked Icosahedron (StEM face variant) from Kami
Paper:
copy paper (note block)
Type:
modular spiky balls
(implies:
abstract modular, abstract, geometric, mathematical object, modular, multi-sheet, spiky balls)
Author:
Michał Kosmulski
Units used:
Sturdy Edge Module,
by:
Dirk Eisner, Francis Ow, Michał Kosmulski, other/uknown, Tomoko Fuse
(square paper)
Unit count: 30
Colors:
orange
In albums:
Modular ② — medium number of units


The unit is a variant of an edge unit; I call usage like this the “face variant” since the unit covers a face rather than an edge of the solid. When I invented the module, I thought it was very original, but soon I learned it was actually pretty common and had been independently designed by many others before (it’s just a variant of the classic Ow’s edge unit). Dave Mitchell invented this “face configuration” (under the name Cube-Corner Star) as early as 1993.
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