Tetra-octahedral bars & nodes grid structure; chaser and ng nodes v.1

This is a design for a small scale structural grid, geometrically composed by octahedra and tetrahedra - that make a rigid structure and pack space -, and physically/materially made out of 3d printed nodes and mdf laser cut bars (not in the first pic which corresponds to a test). There are two different kinds of nodes, that are named "chaser" (the hybrid sphere/polihedron one) and "ng" (the star shaped one), after two friends; the two nodes are "topologically" [?] identical; they can work in the