A trebuchet is kind of like a catapult, but it’s optimized with a sling and a hinged counterweight to make it more effective.
Download the pdf to learn the basics of making a paperclip trebuchet and a medium sized trebuchet that can throw eggs.
Cut your lumber,l drill holes, and screw it all together!
Add a remote control servo to launch the trebuchet from a distance!
You can use trebstar software to test it out first!
The paperclip trebuchet was inspired by this awesome instructable – Link