: You need 6 square sheets of paper, all the same size. Fold the Modules :
: Flip the paper over and fold it in half horizontally, then unfold it.
Continue connecting the pieces at right angles. Each face of the cube will eventually be the center square of one module, while its flaps lock into the adjacent modules.
Fold a square in half and unfold. Fold the top and bottom edges to that center crease.
: Locate the small hole at one end of the model. Blow into it steadily until the paper expands into a cube. Method 2: Modular Sonobe Cube
