puzzle is composed of
twelve identical components, which assemble and interlock. The above
version is laser-cut from aluminum.
Above is the paper model which I
made first, to test the concept.
And here is a prototype version made of
a selective laser sintering machine. I made the parts separately and
then assembled them.
Here is is before I dyed it red. This
view looks straight down one of the 5-fold
Thank you Jim Quinn for access to the
SLS machine used to make the above model.
This photo shows me with
the laser-cut aluminum version, to give a sense of its size.
And here is a final version in stainless steel, now at the Polytechnic University of
I like the design very much and should commercialize it some day.