I made this by faceting a truncated tetrahedron, giving it faces which are interpenetrating, red, equilateral triangles, as well as yellow crossed-edged hexagons. It can also be viewed as a central tetrahedron, with six more tetrahedra attached to its edges. This was made with Stella 4d, available at this website.
Now that one of my students has access to eye gaze technology, we will give Stella a try! Yea!
LikeLiked by 1 person
It is well worth the money!
LikeLiked by 1 person
I’ll let you know how he does!
LikeLiked by 1 person