Working our way through the five Platonic solids that were included in my entry for the Makerbot Academy Math Manipulative Challenge, today's blog item is a hinged octahedron.
STL file: http://www.geekhaus.com/makerhome/day82_octahedron.stl
Tinkercad link: https://tinkercad.com/things/fJxQSsf4YRW-hinged-octahedron
Thingiverse link: http://www.thingiverse.com/thing:185859
Settings: Replicator 2 MakerWare .3mm/low settings with no raft or support, in an hour and 15 minutes.