Traditional (Classical) origami

There is no fixed definition of traditional folds. We may also call it classical folds. Instead of trying to give a well-defined notion to some class of conventional origami, we present here typical fold methods of traditional origami.  Generally, traditional folds allow us to construct origami more complexly than Huzita-Justin folds.

Examples of traditional folds are given in

By unzipping it, we obtain the nb file.

Our starting point in this direction of R&D  is  the following article we published in

T. Ida and H, Takahashi,  A New Modeling of Classical Folds in Computational Origami. pp. 41 – 53, EPTCS 352Proceedings of the 13th International Conference on
Automated Deduction in Geometry Hagenberg, Austria/virtual, September 15-17, 2021, Editors P. Janičić and Z. Kovác.