This project examines the potential of tangible interfaces to develop an intuitive design and construction process utilizing granular jamming. By taking advantage of the variable stiffness of granular jamming, we create an adaptive fabrication process, where the user can easily create various formations by forming individual jammed units. Throughout the process, a tangible interface guides the user's design decisions and operations, based on predesigned tectonic strategies from a background computational library. By storing the formations of multiple users this library expands and learns.