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12 units Stellated Octahedron

Design and Diagrammed by Ilan Garibi

Making this model from 24 units is done easily. But can you make it from only 12? For that you need to inter-sect every 2 units, and how can this be done without cutting? Here is my way to cut paper origamicly, and with this method I can make it work 12 units Stellated Octahedron.

This model is based on Francis Ow method of connecting units in 60 degrees. It assumes the reader is familiar with the technic to create a Tetrahe-

theFOLD This document was published by OrigamiUSA’s online magazine, The Fold, with permission from the author.If you did not obtain this document from The Fold’s website, you may have infringed upon the author’s copyright. This document can be obtained legally by joining OrigamiUSA online at http://www.origami-usa.org/

© Copyright 2008 by Garibi Ilan

dron from 6 units. The main idea here is presented in steps 7 to 15, showing how to “cut” half way through the module either with a slit from top to centre or from the bottom.

Steps 1-5 shows the standart unit by Francis Ow. start with a 1:2 rectangle,color side down.

6

7 8 9

10 11 12

13 148

15

theFOLD This document was published by OrigamiUSA’s online magazine, The Fold, with permission from the author.If you did not obtain this document from The Fold’s website, you may have infringed upon the author’s copyright. This document can be obtained legally by joining OrigamiUSA online at http://www.origami-usa.org/

© Copyright 2008 by Garibi Ilan

12 units Stellated Octahedron, by Ilan Garibi

Start again from step 8 with a new unit . Continoue to step 13 for the Bottom Slit unit.

Steps 9 to 12 creates the Top Slit unit. Make all pre creases before the Collapse.

Steps 7-8 are common to both type of units. precrease as shown, and open up.

Sink all 4 corners while the corneres of both the triangles meet in the back.

Bottom Slit unit

Use the side view to understand the collapsed position.

16 17

18

Tab A

Pocket B

Tab B

Pocket C

theFOLD This document was published by OrigamiUSA’s online magazine, The Fold, with permission from the author.If you did not obtain this document from The Fold’s website, you may have infringed upon the author’s copyright. This document can be obtained legally by joining OrigamiUSA online at http://www.origami-usa.org/

© Copyright 2008 by Garibi Ilan

12 units Stellated Octahedron, by Ilan Garibi

Connecting 2 crossing units

The unitsDuring the connecting process

From the other side.

Assembling

First connect 3 corners of the Top Slit unit pyramid. Take two units (A, B), and insert A tab into B pocket. Insert B tab into C pocket, and C tab into A pocket.Complete this pyramid with 6 units.Now attach the Bottom Slit units to all the Top Slit units. when all are attached, you can connect all four corners of the second pyramid.