This geometric assembly puzzle consists of twenty-four identical
laser-cut wood components making a structure 8.5 inches
across. They hold together very solidly and it has a lovely
symmetry, but the initial stages of the assembly are something of a
dexterity puzzle as everything wants to fall apart. This is my
exchange puzzle for the IPP35 conference. Interestingly, it
can be seen as six squares, but they are not arranged edge-to-edge
like the six squares in a cube.
A solution for assembling it is available here.