First you want to attach two pencils to the middle of one pencil as show below perpendicular.
How to build a catapult with pencils and rubber bands. Use rubber bands to make a t shape with two dowel rods. Then add three more rods to make the square base of the catapult like this. First picture below build the main unit. They wanted me to cut little holes on each side of the bottle cap and then use it to pull back and launch the ammo.
Then we connected 2 more pencils and attached them to the first triangle build. In this session you will learn how to make a catapult at home. This will act as the lever arm launcher. Check out our interesting video on how to make a diy catapult with the rubber band.
The book suggested using a bottle cap and a knife. Add a small dab of hot glue to each end of the stack and glue a craft stick to each end. Arrange the catapult so the stack of craft sticks is laying on the table and the throwing arm is sticking up. Then add three more rods to make the square base of the catapult like this.
Below you will see some photographs outlining the order in which we put the pencil catapult together. What do you need 5 pencils 5 rubber bands one plastic spoon.