Yoshizawa-Randlett System: Compound Folds

              Yoshizawa-Randlett System

                                 COMPOUND FOLDS

Here, let's talk about the compound folds in origami, with the Yoshizawa-Randlett System.

SQUASH FOLD: A squash fold starts with a flap with at least 2 layers( like in the waterbomb base). Make a radial fold from the closed point down the flap. Open the flap as it was and refold down to make two adjacent flaps.

RABBIT EAR: A rabbit ear fold starts with a reference crease down a diagonal of the paper. Make two radial folds from opposite corners along the same side of the reference crease; the resulting flap should be folded flat and down so that the previous edges align.

THE PETAL FOLD: This starts with two connected flaps, each of which has at least two layers( for example, two flaps of a preliminary base, or two flaps of a square base). The two flaps are attached to each other with a reference crease. Make two radial folds from the open point, so that the open edges lie along the reference crease. Unfold these two radial folds. Make another fold across the top connecting the ends of the creases to create a triangle of creases. Unfold this fold as well. Fold one layer of the open point upward and flatten it using the existing creases. A petal fold is equivalent to two side-by-side rabbit ears, which are connected along the reference crease. Yes, the petal fold is involved during the making of an origami crane.

The SQUASH FOLD on a flap of the waterbomb base. The dotted structure shows the position of the flap earlier.

RABBIT EAR FOLD. The dotted line is the reference crease.

THE PETAL FOLD. The dotted line shows the reference crease, the base on which the fold is being made is the square base.