Buy at http://www.shapeways.com/model/192003... Copyright M.Oskar van Deventer & Jack, 2010. Jack's Cube was suggested by Jack via YouTube: http://www.youtube.com/watch?v=buNbhb.... The design was inspired on the Magic Sphere puzzle. Jack's Cube has three types of moves. First there are the conventional Rubik's turns. Secondly, a circle of nine pieces can turn in steps of 90 degrees. Finally, a great circle of 12 pieces can turn in steps of 30 degrees.
This puzzle was 3D-printed using nylon-powder SLS technology, which explains its price. It is the very first prototype, costing its designer and maker a lot of money to create. Please do not confuse it for a cheap mass-produced puzzle.