A classical three-dimensional puzzle is made up of six identical polyhedral pieces which must be assembled. I have devised a couple of variations on the same principle, one assembling into a cube and the other assembling into a sphere. Together with a version of the original, these are coded in the files
For a description of the SCAD language and free software for creating stl files from scad programs, see the OpenSCAD site.
30.10.14