(notions explained here)
Mathematica notebooks by Daniel Bedats at https://community.wolfram.com/groups/-/m/t/3290514
Triplet surface, principal and Levi skeletons and nerves
Triplet crystal, skeleton and nerves
3d printed decuplet skeleton
Decuplet crystal, skeleton and nerves
3D printed octet big and medium skeletons
Octet crystal, skeleton and nerves
Octet crystal, big and medium skeletons, and nerves