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Sections: Haresh LalvaniGirih App | Zome | Brain Flakes

Haresh Lalvani

Architech Haresh Lalvani, designed a similar system, using regular polygons at vertices to define angles, specified as integers corresponding to internal angles.



US Patent 5775040

Convex tiles

Concave tiles

More concave tiles

Concave tiles in a tiling

Girih App 

Stefan Hintz wrote Girih App for Macs, to generate Girih tiling patterns.

Website: and


Website: | Lesson plans

The word "zome" was coined in 1968 by Steve Durkee combining the words dome and zonohedron. Both the building and the learning tool are the brainchildren of inventor/designer Steve Baer, his wife, Holly, and associates. The overall shape of a connector node is that of a non-uniform small rhombicosidodecahedron, except that each face is replaced by a small hole. The ends of the struts are designed to fit in the holes of the connector nodes, allowing for syntheses of a variety of structures. The idea of shape-coding the three types of struts was developed by Marc Pelletier and Paul Hildebrandt. To create the "balls," or nodes, Pelletier and Hildebrandt invented a system of 62 hydraulic pins that came together to form a mold. The first connector node emerged from their mold perfectly on April 1, 1992.

Using 3 postions of struts (blue for rectangles, yellow for triangle holes and red or pentagonal holes.) Using these, zome can make angles of a regular triangle, square, pentagon, and hexagon in 2D. Struts have different edge lengths.

Zome nodes and struts

Regular polygons

Brain Flakes


Brain Flakes have 45 degree slots, so can make octatiles in 2D.