Jonathan Kirk's New CRF Polychoron
A new 4D Johnson-solid-analogue discovered by Jonathan Kirk, using vZome
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SUMaC 2025 Zome Build
Building a large, two layer fullerene shape in Zometool, with a group of Stanford University Math Camp students -
6 GB1 Struts for SLS Printing
This approximates the original GB1 struts from Zometool, no longer available, necessary for building certain Archimedean solids exactly. -
Straight-ribbon Woven Dodecahedron
This collection of 20 loops of straight ribbon uses the widest possible ribbon to consistently weave around a dodecahedron symmetrically. -
Truncated 600-Cell
We constructed this design at a recent Stanford University Math Camp. -
Meta Triamond Lattice
A beautiful lattice with some surprising symmetries. -
Understanding Icosahedral Rotations
An explanation of how the rotations of a snub dodecahedron can defy our intuitions -
Hidden-Surface Removal for N-Dimensional Polytopes
Projecting an N-dimensional polytope to 3-d is easier to see when you show only the "front" -
Building the Hyperdo
Step-by-step instructions for building the Hyperdo kit from Zometool -
Oblique Projections of A4 Polytopes
Two different A4 polytopes, relatives of the 5-cell, showing ghost symmetry in their projections to 3D and 2D