Like most people who are new to oragami and paper planes, I had no idea how to make a waterbomb base. After searching around, I found out how to make it and wanted to share it with other people who might have been like me. A waterbomb base is a certain fold used in intermediate to advanced oragami and paper planes. It takes one standard piece of printer paper, although many oragami projects need a square piece of paper.
Step 1: First Step
Fold one corner as far as you can, then the other. For a square piece of paper it will bring you to the opposite corner.
Step 2: Second Step
Fold vertically, unfold, then fold horizontally and unfold.
Step 3: Third Step
Fold diagonally on your earlier creases.
Step 4: Forth Step
This is the hard part. It's a little hard to explain, so refer to the pictures. You have to pinch the crease in the pictures and smooth it out evenly.
Step 5: Done!
You're done! An endless supply of oragami awaits you! Congratulations!