Trinomial Burr module

Created an OpenSCAD module for joining elements of a generic trinomial cube. I intentionally mixed the adjacent cubes to create a non-linear alignment of cubic elements. All 27 appropriately sized elements of the (a+b+c)^3 cube are present in the burr. Burr size, piece separation, and edge treatments are parametrized.

Post-Printing

Puzzle is printed in place. The .024 burr inset is sufficient that only a few sharp raps is sufficient to separate each of the burr pieces.

The individual burr piece models are not intended for independent printing.  Simply print Trinom_Three_Cubed.stl.