Making a truncated tetrahedron

Introduction -- Making the Modules -- Making the Polyhedra -- Jim's Origami Page
The truncated tetrahedron has four triangular faces and four hexagonal faces. There are 12 vertices at which one trianglar and two hexagonal faces meet. It has 18 edges. Six of these edges are hexagon (he--he) modules, and the remaining 12 are triangle/hexagon hybrid (tr--he) modules.

You can color this with three colors as follows: Arrange the he--he modules like they are the edges of a tetrahedron. Then add the tr--he modules so that all triangles have edges of each color. You can do this so that each hexagon has no adjacent edges of the same color, or so that hexagon edges all come in pairs of the same color.

These are very stable polyhedrons.

The truncated tetrahedron

Jim Plank --- Jim's Origami Page