Hinged models of each of the five Platonic solids, for educational use. Each polyhedral net prints fully assembled with hinges intact and then snaps together to make a Tetrahedron, Cube, Octahedron, Dodecahedron, or Icosahedron. The demo models are optimized for a Replicator 2 wtih .3mm layer resolution without raft or supports. If you have a different printer or want different sizes then use the Customizer to set your own size and tolerance values. This was the last big model series on the print-something-every-day-for-a-year blog MakerHome: http://makerhome.blogspot.com/2014/08/day-364-customizable-hinged-polyhedra.html