This project investigates the potential of a liquid foaming material for the design and fabrication of acoustic diffusion panels. The fabrication consists of two temporally successive processes. During the first one the material is poured along a path by a robot. As soon as the liquid material leaves the nozzle the second process comes into play. The material starts to expand, foams up and solidifies. When building up several layers, the topography of the solidified substructure is still in a transforming state while additional material is being added. Little ponds of material accumulate and foam up to emerge into a highly articulate form.

These process effects enable the design of acoustic diffusion panels that require a non repetitive, textured and variable depth structure.

The project was initiated and developed in the context of the elective course program of the Professorship for Architecture and Digital Fabrication at ETH Zurich: Prof. Gramazio, Prof. Kohler, Silvan Oesterle, Michael Lyrenmann, Ralph Bärtschi Selected experts: Jürgen Strauss (Acoustics), Kurt Eggenschwiler, EMPA (Acoustics)