I built this model that was needed for testing and ergonomic analysis. The designer, Iduol Beny had various styles of this plate system, one perfectly spherical, and one as seen above, perfectly cubic. The end model was produced by Dupont to show another use of Corian, and that it could be cast into any configuration. This was a moderately complex piece to model with drafted interlocking plates that were specifically keyed without hard edges. I built this model using Rhino, and the surfaces were exported as .STP's.
This cutaway shows the interior of the plate structure and how they interlock.