Origami butterfly based on open-closed sink-fold

(page 5)

7th picture of origami butterfly

07.

Turn the model over.

You can clearly see the effect given after applying "open-closed sink-fold" here.

Let us parepare to turn the model over again to continue our work.

8th picture of origami butterfly

08.

Turn the model over.

Prepare to rotate the model by 90 degrees in the counter-clockwise direction.

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