Six Intersecting Pentagrams (SIP)
Model
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Folding instructions: Six Intersecting Pentagrams (SIP)
This is the primary page for this model.
Paper: Tant (2:1 rectangles)
Type: modular woven polyhedron
(implies: abstract modular, abstract, geometric, mathematical object, modular, multi-sheet, woven polyhedron)
Author: Cheng Chit Leong, Francesco Mancini, Jared Needle, Robert J. Lang (independent design by multiple authors)
Units used: Six Intersecting Pentagrams (SIP) (current page),
by: Cheng Chit Leong, Francesco Mancini, Jared Needle, Robert J. Lang
Unit count: 30
Colors: orange
In albums: Modular ② — medium number of units
This modular woven polyhedron not only looks nice, but it also has a very interesting history of different people designing it independently. Those credited include: Robert J. Lang (who used the name Shishapangma since the model appeared in his Himalayan Peak series), Francesco Mancini, Jared Needle and Cheng Chit Leong. The module used is a modification of Francis Ow’s edge unit. Different designers used different tip angles — the version shown here uses the 60 degree unit.
OrigamiUSA has an article about this model and its history.
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