Thank you for visiting our site. Our goal is to build the best online resource with FREE plans to build a catapult, FREE plans to build a trebuchet, and any other DIY project that involves recreating history's greatest throwing machines. Catapults were a significant piece of historic arsenals, and understanding how they were made is not only educational, but can also be a lot of fun. You'll notice that our site is still quite young (read, not as much catapult or trebuchet information as we'd like). Nonetheless, please be patient as we are always working to add more content. In the mean time, we have included our opinions and reviews of other online resources related to similar catapult / trebuchet topics. If you have any suggestions, please drop us an email at This e-mail address is being protected from spambots. You need JavaScript enabled to view it . Thanks for visiting!