Sink fold

Origami sink fold is a process of removing or collapsing a corner's tip. Or, in other words, the main purpose of a sink fold is to smooth out paper's sharp corners.

Continue Reading Sink fold

Origami design process – Part 2

This blog post is intended to be a sequel to the Origami design process (introduction) blog post. But my true intention was to make a blog post that would serve as a comprehensive guide on the origami design process. You see, I have already written numerous posts on the topics concerning various details important to the process itself.…

Continue Reading Origami design process – Part 2

Swivel fold

What is swivel fold is not easy to define, but I can try using a well-known example. In figure 1, a swivel fold is performed on a Preliminary fold with one of its flaps Squash Folded (figure 1). Figure 1 That is the most basic example of the open swivel fold. There is, of course, a closed or…

Continue Reading Swivel fold

Traditional Origami Bases

Every origami model in its essence has a base. No matter how complicated or simple a model is, the base is always an initial step. In traditional origami, there are only a handful of bases and all traditional origami models were derived from them.  Folding a base is in most cases very simple. But, on the other hand,…

Continue Reading Traditional Origami Bases

One-dollar bill and origami

Making dollar bill origami models is very popular these days. If you search the Internet, you will easily find thousands of origami models made out of a dollar bill. You can also search the Internet to find similar models made out of European euro or Japanese yen banknotes and you will most certainly find some. But to be…

Continue Reading One-dollar bill and origami

Valley and mountain fold

How many folds exist in the origami. If you survey the internet, you will find out that there are many of them (Valley fold, Mountain fold, Inside reverse fold, Outside reverse fold, Rabbit ear, Squash fold, Swivel fold, Patel fold, Open sink, Closed sink, Unsink fold etc.) But, the truth is that there are only two folds. Everything…

Continue Reading Valley and mountain fold

Axial creases

Axial crease is one of the three basic origami creases. By definition Axial creases are creases that run in the direction that is perpendicular to the polygon’s hinge creases. Simplest form of a axial creases In most basic form, meaning in the models that do not use more advanced origami techniques such as level shifters or Pythagorean stretch,…

Continue Reading Axial creases

Maekawa-Justin and Kawasaki-Justin theorems are not enough

I believe that most of you understand what flat-foldability of an origami model means. But if you do not, I will give you short introduction into the topic.Flat foldability of an origami model means that whole model could be flattened into the single plane without getting any additional creases or worse being wrinkled. In other word a model…

Continue Reading Maekawa-Justin and Kawasaki-Justin theorems are not enough