Students' 3D-printed Concrete Choreography pillars provide a stage for dancers

Dancers at the Origen Festival in the Swiss Alps will perform around nine unique columns 3D-printed in concrete by students from ETH Zurich.

The masters students produced the columns using a new process, developed at the technology school, that allows for the fast 3D-printing of concrete structures completely without formwork or any other kind of mould.

Titled Concrete Choreography, the series of structures took less than two-and-a-half hours to print in the lab using an industrial robot arm that extrudes concrete in precise layers.

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