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International symbols for folding paper
Begin with a square folded in half. Push the lower left corner toward the right so that it lies between the front and back flaps.
Flatten the model so that the large front and back flaps are together.
This procedure is called a reverse fold because a mountain fold-the left edge in this instance-is reversed to become a valley fold.
The reverse fold is notated like this.
Begin with a square sheet of paper. Valley-fold along the diagonal.
The drawings above show how to fold a Waterbomb Base. Begin with a square piece of paper colored side down. Step 1 tells you to valley-fold the paper on the diagonal and shows the direction to make the fold. It is very important when folding the Waterbomb Base to be as precise as you can. The edges of the paper must be lined up exactly. Step 2 shows what the paper looks like when you begin to make the crease. It also tells you to unfold the near flap, returning the paper to its original position.
Valley-fold in half on the diagonal.
Step 3 tells you to make another valley fold and the direction to fold. Step 4 shows the paper after the fold and tells you to unfold the paper again. In later drawings, these two steps of folding and unfolding are included in one step.
Mountain-fold in half.
Steps 5 and 6 tell you to make a mountain fold, show the direction of the motion, and show how to unfold the paper. Notice that when you unfold the paper there is no color.
Mountain-fold in half.
Steps 7 and 8 tell you to make a mountain fold, show the direction of the motion, and show how to unfold the paper. Notice that when you unfold the paper there is no color.
Press down on the center of the paper, then pull the ends of the mountain crease down toward the black dot.
Continue to pull the ends of the mountain crease down toward the black dot.
Step 9 shows all the folds you have made in steps 1-8 and shows how to pull the left and right edges of the paper downward and together to form a completed Waterbomb Base. Steps 10-12 show this process in progress.
Continue to pull the tips of the mountain crease down toward the black dot. Flatten the paper.
A completed Waterbomb Base.
Begin with a Waterbomb Base (page 4). Valley-fold to the centerline the near left and right folded edges and unfold. Repeat behind.
Valley-fold the near right flap to the left along the centerline as if turning the page of a book. Turn over and repeat behind.
Valley-fold to the centerline the near left and right folded edges and unfold. Repeat behind.
Valley-fold the tip of the near left flap up to the top and unfold.
Valley-fold the near left flap so that the crease formed in step 4 lies along the vertical centerline and unfold. Repeat steps 4 and 5 on the three remaining sides.
The completed Rocket Base.
ORIGAMI ROCKETS. Copyright © 1999 by Lew Rozelle. All rights reserved.