Contents
1 Valley-fold in half, corner to corner, and unfold.
2 Valley-fold the bottom left and the top right edges to the vertical center crease.
3 Valley-fold the bottom right and the top left edges to the vertical center crease.
4 Valley-fold the bottom corner to the top. Return the corner to the bottom.
5 Open the top left and bottom right triangle flaps so that they stand 90 degrees to the rest of the paper.
6 The completed module. You will need four. Notice the two tabs and the two blank edges on each module. Tabs will wrap around the outside of the blank edges.
7 Assembly begins by holding two modules together, with their facing tabs set against the facing blank edges. The tabs must be against the outer surfaces of the paper.
8 While cradling the two joined pieces in one hand like a toy boat, add another module in the same manner. Hold the construction carefully while adding the last piece. Once the last module is in place the model will be stable.
9 The Lightning Bolt Octahedron.
1 Valley-fold in half, diagonally. Unfold.
2 Valley-fold the bottom edges to meet at the middle crease, forming a kite.
3 Unfold the two right triangle flaps.
4 Valley-fold the right angle corners of the right triangle flaps to the nearest crease.
5 Use the existing creases to valley-fold the flaps to meet at the center crease.
6 Your paper should look like this. Turn over, left to right.
7 Valley-fold the bottom corner to the level of the two obtuse corners.
8 The completed module. You will need a total of eight.
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