The file 'Superstrings Puzzle 3D Printer Model' is (stl,pdf) file type, size is 464.8KB.
Update 21 APR 2019
There is a newer easier-to-print version of this puzzle at https://www.thingiverse.com/thing:3578594.
This puzzle was my entry for the 2011 IPP Puzzle Design competition in Berlin where it was a Jury 1st Prize winner.
"Two open-ended Superstrings with the correct spin can be merged into a super-symmetrical cube."
The idea for this puzzle emerged when I was designing shapes based on two interlocked tetrahedra. Inspired by ideas from 'string theory' and 'super-symmetry', I began to search for shapes that were both symmetrical and as similar as possible.
The two pieces may look similar but they are very slightly different.
Superstrings_628_03_003_S1.stl | 102.2KB | |
Superstrings_628_03_003_S2.stl | 102.2KB | |
Superstrings_puzzle_solution.pdf | 449.6KB |