aeh5040's Lego Technic Crystal (Red-Blue-Green-Yellow + Red-Blue-Green)
Designed by aeh5040, these two Lego Technic Crystals are each made of 1,728 parts. See aeh5040's YouTube video of his original Red/Blue/Green creation (on the right), built with real Lego pieces, at www.youtube.com/watch?v=iwEfcBSt7qI . Download the Lego Digital Designer (LDD) .lxf Building Instructions file for it at Bricksafe.com: bricksafe.com/files/dluders/aeh5040s Lego Technic Crystal.lxf . Each polyhedron has 14 vertices, 12 faces, and 24 edges; the left crystal has been recolored with some yellow so that you can more clearly see the twelve diamond-shaped faces. If you twirl the crystal around, you can see hexagonal-shaped openings among the square-shaped lattice structure.