Material-Saving Freeform Stair

© Andrei Jipa, DBT, ETH Zürich
© Andrei Jipa, DBT, ETH Zürich
© Georgia Chousou, DBT, ETH Zürich
© Andrei Jipa, DBT, ETH Zürich

The Chair for Digital Building Technologies at ETH Zurich and ROK Architects have tested a new stair concept. Each concrete step was cast in the same 3D-printed formwork.