The file 'Triakis Truncated Tetrahedron Tower 3D Printer Model' is (skp,stl) file type, size is 9.7MB.
A tower made of hollow triakis truncated tetrahedrons, of course.
Triakis_truncated_tetrahedron.skp | 15.2MB | |
Triakis_truncated_tetrahedron_tower.stl | 20.7MB |