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GeomBlocks T/O set

GeomBlocks T/O set 3d printed Art Gift Guide A cuboctahedron and a large octahedron made from GeomBlocks
A cuboctahedron and a large octahedron made from GeomBlocks
  • White

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


Think outside the box!

GeomBlocks T/O is a modular construction set for building shapes in tetrahedral / octahedral geometry.

One way to tile space is with cubes. But that's not the only way. Regular tetrahedra and octahedra also tile space, in an alternating honeycomb pattern. (They can also build larger copies of themselves!)

In GeomBlocks T/O, the tetrahedra have connectors that plug into the octahedra -- and half octahedra, which also turn out to be useful.

This basic set consists of 18 each of half octahedra and two-connector tetrahedra, and 4 each of octahedra, one-, three-, and four-connector tetrahedra. The unit edge length is 20mm.

Use GeomBlocks to explore the mathematics of tessellations, build geometric sculpture, or design puzzles outside the same old cubic landscape. (Complex puzzles might require multiple sets. Some of the photos show multiple sets in multiple colors.)


IN: 7.145 w x 7.145 d x 7.145 h
CM: 18.148 w x 11.342 d x 8.158 h


How many blocks Octahedrons + Tetrahedrons come in a set? Looks pretty cool. A tesselation made up of rhombic dodecahedrons would make for very stable bricks as well.
August 15, 2010, 12:15 am
Hi Magic, I've got a similar project in the works as well, currently being prototyped. I call it GeomBlocks R. It will be interesting to compare the different designs.
November 23, 2009, 5:15 pm
Very interesting. I am working on a similar model, but based on the rhombic dodecahedra (whose tesselation leads honeycombs similar to what bees actually do).
November 22, 2009, 5:05 pm
Also see
October 29, 2009, 12:42 am