D50 Expanded Cubocta / Rhombic Dodecahedron

D50 Expanded Cubocta / Rhombic Dodecahedron 3d printed Board games Dice
A 50-sided die in the shape of a prism-expanded dissected cuboctahedron, or equivalently an expanded dissected rhombic dodecahedron. This shape has 14 faces from a cuboctahedron, 12 faces from a rhombic dodecahedron (the dual of the cuboctahedron), and 24 faces from the edges of these dual polyhedra, for a total of 50 faces.

8 faces are equilateral triangles, 12 are 1:sqrt(2) rhombuses, and 30 are squares. Because the faces have different shapes, this is polyhedron does not make for perfectly fair 50-sided dice, so label the smaller triangular faces thoughtfully.

I also sell another pentacontahedron (50-sided polyhedron) with a different arrangement of faces.
cm: 1.506 w x 1.506 d x 1.506 h
in: 0.593 w x 0.593 d x 0.593 h


  • White Strong & Flexible

    White nylon plastic with a matte finish and slight grainy feel.