How to make a simple square origami spring (page 13)

 

23. Rotate the model by 90 degrees.   We will not apply "open sink-fold" now but we will do it later.   Prepare to rotate the model by 90 degrees.

24. Rotate the model by 90 degrees.   Here we will apply two "open sink-folds" for the left and the right sides and two "valley-folds" for the front and the back sides.

 

 

 

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