puzzle is composed of
thirty identical components, which snap together in an interesting way.
It is much harder than it may appear. The parts lie in the planes of a
rhombic triacontahedron. The above view looks along a 5-fold
axis. Below it is seen along a 3-fold axis.
The parts are nylon, made by selective
laser sintering and the whole thing is about 5 inches in diameter.
Thank you to Jim Quinn who provided access to the SLS machine.