How to make an origami butterfly based on open sink-fold

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This page is for those who want the instruction to fold an origami butterfly I.

This origami butterfly starts from a balloon base. The essential folding technique that you will learn from this model is open sink-fold. Also you will apply many times of inside reverse-fold.

Before working on this model, you need to know what valley-fold and mountain-fold are. If you know these two folding techniques, then you will have no problem in making origami butterfly.

If you are ready, then let's get started.

If you find any bugs on this instruction, please send an email to .

You may use any kind of paper to fold this origami butterfly. Here I am using the same color paper for both the front and the back sides. But you could use one side color only paper without any problem. Make sure the paper that you use is a square (all sides are equal and all the angles equal 90 degrees). The paper I am using here is 14cm x 14cm square one.