They all became engineers, but I doubt that everyone who tried to make these contraptions became engineers. If your family wants to try this cardboard one, it’s quite a big project.
For smaller ways to get started in this hobby, check out the projects on the right sidebar of the linked Instructable including mini-siege engines, a pocket-sized catapult from a mint container, and desk-top catapults.
Click here to link to the tutorial at Instructables.
Just be sure they don’t break anything valuable or hurt anybody. This one will throw a softball 50-60 feet, so plan to test it at a park or ball field. I wonder how far a water balloon would go? Somehow that seems safer and more fun.
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