Spiked Icosahedron (BBU D2)

Folding instructions: Building Block Units
This is the primary page for this model.
Paper: metallic paper (very thin for metallic paper, just 80 gsm)
Type: color-change, modular spiky balls (implies: abstract modular, abstract, geometric, mathematical object, modular, multi-sheet, spiky balls)
Author: Michał Kosmulski
Units used: Building Block Units, by: Michał Kosmulski
Unit count: 90
Colors: brown and beige
In albums: Showcase, Modular ② — medium number of units

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

The structure of this model is similar to spiked icosahedra made with variants of the Sonobe unit and other similar modules. However, in the case of BBU, a three-unit assembly is needed in place of each individual Sonobe unit, increasing the total number of units needed from 30 to 90: 30 × D2, 30 × A2, 30 × A4.