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by Thomas R. Crain
This article explores several variations in a square twist crease pattern that may be achieved simply by varying the mountain/valley assignment of the same underlying crease pattern.
The origins of origami in Japan are lost in the mists of history, but we have surprisingly good records of paper-folding from over a thousand years ago in pre-Columbian Mesoamerica.
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by Thomas Hull
Several variations on a hexagon-based, iso-area, geometric collapse method are shown. Some of these were taught at the 2013 OrigamiUSA Annual Convention in New York City.