10-traditional-sonobe-great-rhombicosidodecahedron-95-percent-complete

The original triangular cupola I began this tutorial with months ago is in the rear of this polyhedron. I only resumed work three weeks ago, spending perhaps an hour per weeknight folding each triangular cupola.

When I took this picture yesterday, I only had one more cupola to attach. As you can see, my technique has been to glue (yes, glue) the front and back of each cupola separately. In most cases I attached the 12 front hexagonal units before the 3 rear triangular units, but I reversed this order for the last cupola since it is easiest to do the inside before the outside when closing an object up permanently.

Of course I finished the object yesterday. Since I gave the polyhedron to Addie_Goodvibes this morning, I forgot to take a picture of the completed structure. (I'll have to take one later.) Update: See the next image in the set.

As usual I needed 510 sheets of paper to complete this polyhedron. Each sheet was 15x15cm, so the whole thing is about the size of a beach ball; I can fit my head through any of the decagonal holes. While the great rhombicosidodecahedron is fairly stable, I don't think it would be a wise idea to roll it around due to the weight of the paper.

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Taken on: January 25, 2009

Tags:

sonobe module

modular origami

sonobe

triangular cupola

truncated icosidodecahedron « less

Sets appears in: • Tetrahedral Symmetry Tutorial #1: How to Create a Triangular Cupola

Groups appears in: • Origami • Modular origami more » • origami army • A World of Origami • Origami Sonobe « less

Camera: Canon PowerShot A470, f/3.0, 1/25 sec, 6.3mm, ISO 200 (more info) (hide info)

Camera:	Canon PowerShot A470
Aperture:	f/3.0
Exposure Time:	0.04 sec (1/25)
Focal Length:	6.3mm
ISO:	200
Exposure Bias:	0 EV
Flash:	Off, Did not fire
Exposure Mode:	Auto
Metering Mode:	Multi-segment
White Balance:	Auto
Color Space:	sRGB
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