How to make a Great Origami Pyramid with base

(page 9)

15th picture of Great Origami Pyramid with base

15.

Attach two sides (1) and (2) together by applying a valley-fold of the step #14.

Prepare to rotate the origami pyramid model by 45 degrees.

16th picture of Great Origami Pyramid with base

16.

Rotate the origami pyramid model by 45 degrees.

Prepare to put glue on the indicated layer.

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