The paper is “Resch tessellations as stiff, folded modular shells,” published 24 October 2026 in the International Journal of Space Structures. The claim in it is quantitative: structures many times stiffer than other forms of structural origami, using about two-thirds as much material.
It is worth noting at the outset that MIT’s own announcement names a different journal — the International Journal of Solids and Structures. The paper is in the International Journal of Space Structures, SAGE, DOI 10.1177/09560599261494767, which is where to look if you want to read it.
The lineage runs through an artist
The starting point is the work of Ron Resch, the artist and scientist who in the 1960s developed folded tessellations — repeating patterns of polygonal unit cells folded from a single sheet into complex three-dimensional surfaces. Resch’s patterns are in the lineage of both computer graphics and paper folding, and they have been admired for sixty years largely as geometry.
The problem with a Resch tessellation as construction is that it is one piece. Fold a whole surface from a single sheet and you inherit the sheet’s size, the difficulty of folding it accurately at scale, and a shape that is hard to vary.
Splitting one sheet into many locked blocks
Working in Tomohiro Tachi’s lab at the University of Tokyo, Parra Rubio developed a way to combine two tripod-shaped unit cells from a Resch tessellation into a single building block with zero degrees of freedom — rigid, locked, no residual folding motion.
Those blocks connect into a network of interwoven beams. The result is a load-bearing shell with high stiffness and low weight that needs no interior support columns.
Because each block is folded individually and then joined, the fabrication problem shrinks to something a sheet-metal shop already does, and the shapes available grow rather than shrink. Both single- and double-curvature surfaces are reachable, per the paper’s abstract.
The solver is the part that makes it usable
Designing polygonal blocks by hand so that they assemble into a particular surface, while every block stays foldable from flat stock, is not a job for a person. Parra Rubio worked with CBA graduate student Erik Strand on an automated solver.
Strand describes the decomposition plainly: “we break this big problem down into many small subproblems. Now, we solve each cell independently to make sure that it is foldable, and then we globally assemble them after that.”
The solver emits design files for a CNC milling machine, which cuts blocks from flat sheets — aluminium, in the demonstrations.
Assembly with hand tools
Builders fold the units and bolt them together using screwdrivers. No large-scale welding. The unit cells are designed to settle into their correct shape as they are joined, which is what makes the process survive contact with a non-specialist crew.
That property is the one that matters for the stated applications: disaster-relief shelters fabricated as flat panels, shipped efficiently, and erected on site after an earthquake or flood. The researchers also point at aircraft components, modular robots, sound-dampening panels and building facades.
The sculpture
The scalability demonstration is not a model. It is a room-sized folded aluminium sculpture called Lexicon, recently hung at the Boston Public Library, in an exhibition inaugurated for the annual Fab Lab Conference and Symposium.
Parra Rubio frames the point of it this way: “This work shows that the power of digital manufacturing can go beyond personal fabrication projects and start touching the real world, enhancing the way we design houses and large structures.”
Hanging it in a public library rather than a lab atrium is the more interesting choice. A folded metal shell that holds itself up without columns is a structural argument most convincingly made overhead, in a building full of people not thinking about structure.
Authors: Alfonso Parra Rubio (MIT CBA, lead), Riccardo Foschi (University of Bologna), Rupert Maleczek (University of Innsbruck), Tomohiro Tachi (University of Tokyo), and Neil Gershenfeld (MIT, CBA director, senior author).
Sources
- Resch tessellations as stiff, folded modular shells — International Journal of Space Structures (DOI 10.1177/09560599261494767)
- Origami-based construction method yields lightweight, load-bearing structures on architectural scales — MIT News, 27 Oct 2026
- MIT Center for Bits and Atoms
- Tachi Lab, University of Tokyo