A method for the construction of an interlocked assembly on a square grid with tetrahedral units in a) Vertical plane and tilting directions b) Four planes of the square cell c) Tetrahedral cell from planes' intersection d) Continuous layer of tetrahedral assembly credit: M. Weizmann, O. Amir et Y. J. Grobman, Topological interlocking in architectural design, chez CAADRIA, Hong Kong, 2015

A sketch of a pair of blocks with matching concavo-convex surfaces. The upper block is shown semi-transparent to display concave parts of its surface which is a replica of the corresponding surface of the lower block credit: A. V. Dyskin, Y. Estrin, E. Pasternak, H. C. Khor et A. J. Kanel-Belov, «Fracture resistant structures based on topological interlocking with non-planar contacts,» Advanced engineering materials, pp. 116-119, 2003

Perspective view of selected interlocking element Version 11 with centre of gravity credit: LIQUIFER Systems Group / Bollinger+Grohmann

Tetrahedron dome-shaped volume segment credit: LIQUIFER Systems Group

Rendering of packing of 3D building elements credit: LIQUIFER Systems Group

Interlocking comb elements credit: Bollinger+Grohmann