3 Simple Ways to
Share What You Make

With Instructables you can share what you make with the world — and tap into an ever-growing community of creative experts.

PhotosPhotos

Share one or more photos of a project, recipe, or whatever you've made, quickly and easily.

Get Started

Learn more & Get Tips

Step by StepStep-By-Step

Share your step-by-step photos with text instructions of what you made so others can do it too!

Get Started

Learn more & Get Tips

VideoVideo

Share your how-to video. You'll need your embed code from a video site such as YouTube.

Get Started

Learn more & Get Tips

Print PDF

Favorite

Trebuchet

last photo ←

I made this trebuchet a while back, and found that it could hurl a small fishing weight about 100 feet each time. A trebuchet can fling a projectile by using the counterweight to pull up the arm and the sling. The trebuchet was built to throw their projectiles high and not as far as possible. In medieval times the trebuchet would be used as a seige weapon to throw corpses over the walls of a castle or fort, causing the inhabitants of the castle or fort to contract diseases and to die or weaken.