Digital tape-drawing system
An old project but still relevant: Digital Tape Drawing (.pdf) by Ravin Balakrishnan, George Fitzmaurice, Gordon Kurtenbach and William Buxton.
Tape drawing is the art of creating sketches on large scale upright surfaces using black photographic tape. Typically used in the automotive industry, it is an important part of the automotive design process that is currently not computerized. We analyze and describe the unique aspects of tape drawing, and use this knowledge to design and implement a digital tape drawing system.
A video here