NURBSforms: A Modular Shape-Changing Interface for Prototyping Curved Surfaces

NURBSforms is a modular shape-changing interface for prototyping curved surfaces. Each NURBSform module represents an edge of variable curvature that, when joined together with other modules, enables designers to construct surfaces where curvature can be adjusted interactively. NURBSform modules vary their curvature using active and passive shape memory materials: an embedded shape memory alloy (SMA) wire increases the curvature when heated, while an elastic material recovers the flat shape when the SMA wire cools down. A hall effect sensor on each module allows users to vary the curvature by adjusting the distance of their hand. In addition, NURBSforms provides functions across multiple modules, such as ‘save’, ‘reset’, and ‘load’, to facilitate design exploration. Since each module is self-contained and individually controllable, NURBSform modules scale well and can be connected into large networks of curves representing various geometries. By giving examples of different NURBSforms assemblies, we demonstrate how the modularity of NURBSforms, together with its integrated computational support, enables designers to quickly explore different versions of a shape in a single integrated design process. More Information: https://hcie.csail.mit.edu/research/nurbsforms/nurbsforms.html NURBSforms: A Modular Shape-Changing Interface for Prototyping Curved Surfaces. In Proceedings of TEI 2020. Yasaman Tahouni, MIT CSAIL Isabel P.S. Qamar, MIT CSAIL Stefanie Mueller, MIT CSAIL