This page is for those who want the instructions to a crimp-fold in origami.
Crimp-fold is one "valley-fold" and one "mountain-fold" applied to a paper after unfolding a paper. The paper needed to be folded back after applying a "valley-fold" and a "mountain-fold".
The instructions for the 1st case of "crimp-fold" will be shown in this link.
Click on the above link to learn how to make the 1st case of crimp-fold.