Introduction: Torsion Powered Catapult
I recently saw a TV show about the most american activity ever invented ; "Punkin Chunkin." One category on it was torsion powered catapults. (some others were human powered, air cannons, centrifugal force, and so on.) I used a 2x4 for the base, and small bits of wood that the rubber bands attached to, with the help of screws. I twist the pvc around and around, then I aim it and let it go. The extra pvc pipe you see is just to stop the shaft of the catapult from hitting the ground. It fires about 15-20 feet.
7 Comments
10 years ago on Introduction
I am going to make one of my large trebuchet soon.
Reply 10 years ago on Introduction
Did you fix it
Reply 10 years ago on Introduction
still working on that.
Reply 10 years ago on Introduction
i find it hard to believe that you are working on that at the same time as commenting in ibles
Reply 10 years ago on Introduction
It's getting closer.
10 years ago on Introduction
Bungee cords work better than the rubber bands on the catapults.
Reply 10 years ago on Introduction
I hadn't taken pictures of the bungee cord one I made