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Spherical Spiral

130 mm diameter

paper: t=148μm, 128g/m2

10 strips (S-shape based on Spherical Spiral) are interlocked at 12 points.

Each strip is bent and slightly twisted to fit to a reference sphere.

Modelled with Google SketchUp with "Unfold" plugin.

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Uploaded on January 26, 2011
Taken on January 26, 2011