Bob Sidenberg

freelance artist
Minneapolis, MN USA

Since 1968 I have been exploring connections and intersections among 3-D geometric shapes. At the beginning I divided a cube along its diagonal into three identical shapes and started building. From that block many shapes emerged, notably the rhombic dodecahedron, the rhombic hexahedron, and many, many variations up and down the continuum. Recently, I've been examining the way cubic and hexahedral lattices intersect, fill space and expand to infinity.


Brucestar
8" x 8" x 8"
poplar
1975

this piece begins an exploration of the intersection of hexahedral and cubic solids within a tetrahedral frame


Hexnut
24" x 24" x 24"
wood
1992

This is what happens when a bunch of rhombic hexahedra get together and decide to go for a walkabout


Lattice I
12" x12" x12"
Pine
2002

This expansion of the rhombic dodecahedron will grow infinitely through space, assuming there are enough trees on the planet to keep it going