1. In ETH Zurich’s computational robotics lab a team of researchers created a robot that sculpts Styrofoam just like an artist. 2. The RoboCut uses hot-wire cutting — a subtractive fabrication technique used to carve foam and similar materials to create models. 3. RoboCut proposes a method that uses a dual-arm robot setup to actively control the shape of a flexible, heated rod as it cuts through the material. 4. A physics-based method optimizes the surface swept by the deforming wire directly as a function of the robot’s motion and the cut is then applied to the piece. 5. This process is repeated several times until the desired accuracy is reached.