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Double-twist pentagonal boxes | by Mélisande*
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Double-twist pentagonal boxes

From squares.

Another serious case of rocket science : diagonal of a silver rectangle is used for the angle of the pentagonal twist.

CP pdf

 

The one on the right is quite similar to a box I learned many years ago from Akiko Yamanashi at Ousa convention.

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Taken on March 12, 2015