Magnetic Rhombic Dodecahedron Blocks

The rhombic dodecahedron is one of the few polyhedra that tiles 3D space, but it can be difficult to visualize.

Here are two options for magnetic rhombic dodecahedron blocks. All magnets used where purchased through www.kjmagnetics.com.

Small

The “Small” block is easier and cheaper to make and requires only one 1/4” x 1/8” magnet. The downside is that it doesn’t hold together as well and is only suitable for small clusters.

For each block, print two of each “Small – Inner Magnet Holder” and “Small – Outer Rhombic Dodecahedron Block”. Snap a 1/4” x 1/8” magnet between the two hemispheric Inner Magnet Holders and clamp together with pliers. You usually won’t need glue for this. Ensure that the inner surfaces of the Outer Rhombic Dodecahedron Block are free of any burrs or imperfections, place the ball containing the magnet inside and ensure that it can rotate freely. Using a very small amount of glue, glue the two Outer Rhombic Dodecahedron Blocks together being careful that