Scorpion-II Plans
Downloadable Scorpion-II Plans
The Scorpion's sting is a wicked one, and this version of the scorpion is the most wicked yet! It's a new advance in catapult technologies, based on the the power of bungee cords!
The Scorpion II main fulcrum is attached to an aluminum linkage for smooth action and a dynamic arm tip movement. Double bungee and double pulleys give this machine super power to hurl golf balls as far as 300 feet.
The Scorpion II was designed from the start to hurl golf balls and tennis balls, but you can try it out on just about anything small and round. In our tests, golf balls shoot about 280 to 300 feet, and tennis balls about half that far (due mostly to aerodynamic drag from the fuzz).
These plans are easy to build, and the finished model is a whole lot of fun to shoot. The completed model is 18 inches long and 9 inches wide. The arm is 28 inches long.
Tools you'll need include a table saw, drill, scissors, hack saw, pliers (to bend some wire) screwdriver, clamps and glue.
We've put a lot of time and effort into making these plans as easy, complete and as functional as possible. It's a fun way to learn about physics and engineering!
