## A Zometool model of an 8 cell

Here we describe how to build a cell-first projection of the 8 cell, one of the six regular polytopes in 4-dimensional space, using the zometool system. For the model you need

- 16 balls,
- 12 long blue (b2) struts,
- 12 medium blue (b1) struts,
- 8 short yellow (y0) struts.

For further information and instructions you might also wish to consult one of the following webpages:

The pictures below were taken by Eva-Maria Gassner.

The model is now complete and you can see all cells. The cubical central cell was constructed in step 1. It is the image of