Cube-module

by Yurii Shumakov

This model folds from rectangular sheet, for example, format A4 (21 by 29,7cm) or multiple to it. Also, it is possible to use "Letter" format (8,5 by 11 inches)or multiple to it.

1 Fold and unfold a sheet, combining its bottom edge with the right lateral edge.

2 Bend top of a sheet as shown in figure.

3 Fold and unfold a sheet half-and-half.

4 Make creases, combining the top and bottom edges with middle of a sheet.

5 Open.

6 Bend a sheet on the earlier planned crease.

7 Fold and unfold a sheet half-and-half.

8 Fold and unfold the left and right edges to the central crease.

9 Turn the model around and make creases, as shown in figure.

10 Turn model over and make preliminary creases.

11 Turn model over and make "step" folds.

12 Bring the left- and right-hand sides around and together by filling a unary layer in double as shown.

13 Press a forward wall, pull lateral walls in the direction shown by the arrows and cover it by a back wall. Repeat for the bottom.
14 Insert the edges and under a crease at the centre.
15 Cube-module is ready!