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Closed-open sink-fold in origami(page 2) | ![]() |
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01. We can start with a "balloon base" or a "square base" .
Here the "closed-open sink-fold" is represented with a double line shown on the left. |
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02. Here I applied a valley-fold to the "closed-open sink-fold" line to both balloon and square bases.
Prepare to open the paper. |