Twenty Hexagons, Each Adorned with Images of Hexagon the Cat


I made this using Stella 4d: Polyhedron Navigator, a program you can try for free at this website. It shows Hexagon the Cat riding in circles on the twenty hexagonal faces of a rotating truncated icosahedron. We don’t know of a cat named Pentagon, so I hid the twelve pentagonal faces.

A Truncated Icosahedron Made of Lux Blox

This particular truncated icosahedron has an edge length of one. I may build one with a longer edge length at some point; this would have the effect of shrinking the white edges, and magnifying the orange and blue faces, as fractions of the overall model. The individual Lux square pieces are identical, except for their color.

If you’d like to try Lux Blox for yourself, the site to visit is

Expanding the Truncated Icosahedron, Using Augmentation with Prisms

Here’s my starting point: the truncated icosahedron, one of the thirteen Archimedean solids.

Next, each face is augmented by a prism, with squares used for the prisms’ lateral faces.

The convex hull of the polyhedron above yields what can be called an expanded truncated icosahedron, as shown below:

Could these faces be made regular, and the polyhedron still hold together? I checked, using Stella 4d‘s “try to make faces regular” function. Here’s the result:

As you can see, the faces of this polyhedron can be made to be regular, but this forces the model to become non-convex.

To try Stella for yourself, for free, just pay a visit to The trial version is a free download.

A Toroidal Truncated Icosahedron

Augmented Rhombic Triaconta

The components of this toroid are sixty rhombic triacontahedra, as well as ninety rhombic prisms with lateral edges three times as long as their base edges. I made this using Stella 4d, which you can try for free at

Augmented Rhombic Triaconta rb

The Compound of the Truncated Isocahedron and the Pentakis Dodecahedron, with Related Polyhedra

The yellow-and-red polyhedron in the compound below is the truncated icosahedron, one of the Archimedean solids. The blue figure is its dual, the pentakis dodecahedron, which is one of the Catalan solids.

Pentakis dodecahedron and truncated icosahedron

The next image shows the convex hull of this base/dual compound. Its faces are kites and rhombi.

Convex hull of trunctaed icosahedron slash pentakis dodecahedron compound

Shown next is the dual of this convex hull, which features regular hexagons, regular pentagons, and isosceles triangles.

dual of Convex hull of trunctaed icosahedron slash pentakis dodecahedron compound

Next, here is the compound of the last two polyhedra shown.

dual and base compound of Convex hull of trunctaed icosahedron slash pentakis dodecahedron compound

Continuing this process, here is the convex hull of the compound shown immediately above.

Convex hull

This latest convex hull has an interesting dual, which is shown below. It blends characteristics of several Archimedean solids, including the rhombicosidodecahedron, the truncated icosahedron, and the great rhombicosidodecahedron.

Dual of Convex hull

This process could be continued indefinitely — making a compound of the last two polyhedra shown, then forming its convex hull, then creating that convex hull’s dual, and so on.

All these polyhedra were made using Stella 4d: Polyhedron Navigator, which you can purchase (or try for free) at

Seven Different Facetings of the Truncated Icosahedron

Trunc Icosa.gif

The polyhedron above is the truncated icosahedron, widely known as the pattern for most soccer balls. In the image below, the faces and edges have been hidden, leaving only the vertices.

Trunc Icosa vertices only

To make a faceted version of this polyhedron, these vertices must be connected in novel ways, creating new edges and faces. There are many faceted versions of this polyhedron, of which seven are shown below.

Faceted Trunc Icosa

Faceted Trunc Icosa 8

Faceted Trunc Icosa 7

Faceted Trunc Icosa 5.gif

Faceted Trunc Icosa 4.gif

Faceted Trunc Icosa 3

Faceted Trunc Icosa 2.gif

I used Stella 4d to make these polyhedral images, and you’re invited to try the program for yourself at

A Faceted Truncated Icosahedron

Faceted truncated icosahedron

This is one of many possible facetings of the truncated icosahedron. I made it using Stella 4d, which you can try for yourself at this website:

A Truncated Icosahedron, Formed By Silver Pipes, and Gold Fastenings

Trunc Icosa gold and silver

I made this precious-metal version of the truncated icosahedron using Stella 4d, a program which is available here:

A Cluster of 33 Truncated Icosahedra

Augmented Trunc Icosa

There is one truncated icosahedron at the center of this cluster, and each of its 32 faces is augmented with another truncated icosahedron, for a total of 33. I built this cluster using Stella 4d, software available here.