Rhombic Truncated Tetrahedron Puzzle

Make a Truncated Tetrahedron structure from 4 identical L-shaped pieces made with Rhombic Dodecahedrons.

The pieces can be printed without supports and have a 0.25 mm spacer between the rhombic dodecahedron units, so they stay together but slide easily. 

You can use the attached .scad file to change the dimensions of the pieces or the spacer length (for tighter or looser tolerances).