How do you make a bungee cord for a catapult?

20-30 long screws or nails. A cup (to hold your projectile) Four x 20-24-inch bungee cords….

Drill holes at the end of your wood.
Mark and chisel the wood.
Make your base.
Attach the legs.
Add a horizontal plank.
Cut the angle.
Add the catapult slinger.

How do you make a catapult that launches far?

How to Make a Catapult Launch Farther

Use Bungee Cord Power. Use the tension of bungee cords as opposed to springs to power your catapult.
Shoot From the Best Angle. Create an arm break that stops the arm at a 45-degree angle from the floor.
Use a Snug Fit.
A Sturdy Base Makes a Big Difference.

How do you make a powerful catapult?

Simple craft stick catapult:

Stack five craft sticks together and wrap a rubber band around each end.
Stack two craft sticks and wrap a rubber band around only one end.
Slide the five sticks in-between the two sticks, as shown.
Wrap a rubber band where the two sections meet to hold the catapult together.

At what angle should a catapult launch for maximum distance?

45 degrees
A projectile, in other words, travels the farthest when it is launched at an angle of 45 degrees.

How do you make a catapult for a high school project?

Helped my student make this catapult for a high school physics project. Used 2″ scrap lumber, screws, 2 cup hooks, and a short bungee cord. Made a projectile seat out of card stock and hot glued it on. Also copied a protractor and taped it to the side for calibration. Throws a small bean bag about 10 meters (32.8 ft) at full force.

How do you launch a pumpkin catapult from a 4×4?

Hook one end of the bungee cord through the eye bolt on the bottom of the 4X4 and one end to an eye bolt on base. Put 3 bungee cords on each side. Pull back the catapult, load it with a pumpkin in the bucket, and launch!

How long does it take to launch a catapult?

This catapult is doable in about half an hour to forty-five minutes. It doesn’t launch very far due to the elasticity of this bungee cord, but a motorcycle strap would much work better. Submitted by Powell Middle School for the Instructables Sponsorship Program.