At the Chicago Architecture Biennial, last October, Self-Assembly Lab at MIT and Gramazio Kohler Research of ETH Zurich showed a new process that essentially creates reversible concrete. The materials necessary are a 3-D printing extruder, rocks, string, and smart design.

Simply put, the rocks are bound together by the string into the desired shape and are dismantled by pulling the string.

“The ability to digitally fabricate, disassemble, and reassemble structures with no material losses changes the paradigm of architecture as well as the view of permanent / temporary architecture,” says installation project lead Andreas Thoma of Gramazio Kohler Research

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