3D model of henryseg. The models were repaired and checked for printability.
This model is featured in figure 3.22 of Visualizing Mathematics with 3D
...Plus Printing.
This is joint work with Saul Schleimer.
The 120-cell is one of the six regular 4-dimensional polytopes. This is the result of taking the edges of the polytope, radially projecting them onto the unit 3-sphere in 4-dimensional space, then stereographically projecting the result into our 3-dimensional space. We remove the half of the design in the hemi-3-sphere nearest to the projection point, which makes printing the image in 3-dimensional space feasible.
https://twitter.com/henryseg
