Harvard-Tokyo team demonstrates algorithm for expandable 3D lattices

Researchers from Harvard University and the University of Tokyo reported an algorithm that incrementally designs expandable 3D lattices from rods and scissored joints. In a recent Proceedings of the National Academy of Sciences paper, the team said it used the method to computationally design and physically assemble examples including helices, toroids and eggboxes with multi-material 3D printers. The work demonstrates a design method for collapsible structures, rather than a deployed product or a measured cost, durability or performance advantage.