Fabrication prototyping tech from the HPIHuman Computer Interaction Lab is a computerized tapegun that can produce 3D forms to help visualize objects in spaces:
Protopiper is a computer aided, hand-held fabrication device that allows
users to sketch room-sized objects at actual scale. The key idea behind
protopiper is that it forms adhesive tape into tubes as its main
building material, rather than extruded plastic or photopolymer lines.
Since the resulting tubes are hollow they offer excellent
strength-to-weight ratio, thus scale well to large structures.
