New kits are here. Have a look!
“Awesome! The Oakland Ballistics trebuchet was the highlight of our Catapults camp. Kids loved building them and parents were impressed by the knowledge their kids gained. I highly recommend these projects - the directions are clear and easy to follow, the materials are durable and work well, and it’s a great value for the price. We’ll be using these projects again and again in our science summer camps. Thanks!”
- Science Matters in Colorado
Would you like to build your own trebuchet? We've taken the time to explain the basic process in detail. We've built enough working trebuchets by now to compile quite a collection of tips and tools of the trade to help an aspiring launcher. Click the 2 files below to download the detailed instructions.