Torus puzzle

Torus puzzle I've made about a year ago for the
Ultimaker 3D Printer Toy Design Challenge at GrabCAD.

Puzzle consists of 10 rings arranged around torus. Each ring carries 10 colored tiles and it can rotate independently from the other rings. Additionally tiles which are located on the inner part of the torus can be rotated in order to move them from one ring to the other.
Puzzle consists of 132 parts, however there is only 5 different kinds of parts in the puzzle: rings, tiles, pins, spacers and 2 halves of the torus.