Paper by Martin L. Demaine

Cynthia Sung, Erik D. Demaine, Martin L. Demaine, and Daniela Rus, “Joining Unfoldings of 3-D Surfaces”, in Proceedings of the 37th Mechanisms and Robotics Conference (MR 2013), Portland, Oregon, August 4–7, 2013.

Origami-based design methods enable complex devices to be fabricated quickly in plane and then folded into their final 3-D shapes. So far, these folded structures have been designed manually. This paper presents a geometric approach to automatic composition of folded surfaces, which will allow existing designs to be combined and complex functionality to be produced with minimal human input. We show that given two surfaces in 3-D and their 2-D unfoldings, a surface consisting of the two originals joined along an arbitrary edge can always be achieved by connecting the two original unfoldings with some additional linking material, and we provide an algorithm to generate this composite unfolding. The algorithm is verified using various surfaces, as well as a walking and gripping robot design.

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Related papers:
JoiningUnfoldings_JMD2013 (Joining Unfoldings of 3-D Surfaces)

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