Genus: 3
Symmetry: Multi-directional
This model can be seen as a tiling of tetrahedral hubs and octahedral struts. Note that all faces of the tetrahedra are adjacent to the octahedra, so none of those faces are part of the surface of this model, so it can be built entirely from octahedral struts.
Main Infinite Regular Polyhedra page.
Superliminal home page.