Abstract
When one quarter of the vertices and half the edges of an octet truss are removed systematically, the remaining vertices form a lattice complex known among crystallographers as the J-complex, because their spatial configuration resembles that of jackstones. The residual network corresponds to a space filling system of octahedra and cuboctahedra, having 8-valent vertices. This network has few degrees of freedom, which may be removed by means of only one pair of tension members or a single compression member in each cartesian plane. In principle, the number of such stabilizers is independent of the number of units in each plane. This frame has practical implications, as all compression and tension members lie in an orthogonal set of planes; hence it combines the features of the octet truss with traditional architectural forms.
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