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How to make your own mini catapult
Fasten three pencils in the shape of a triangle
Pass a plastic spoon between them and attach with a rubber band
Your catapult is ready!
Let's see it in action
When the spoon is bent backwards, the rubber band stretches and energy is stored in it
And when the spoon is released, elastic force returns the rubber band and the spoon to their original states
Part of the energy is transferred to the projectile, and it takes flight!
Constructing the catapult using supplies from the pisco catapult kit
Begin constructing the catapult
Apply glue to the notched edge of part four
Insert the glued tenon's into the mortises
Apply glue to the inside of both notches
Apply glue to the spot between the pencil marks
Push a 3 / 4 inch dowel through all three holes
Apply glue between the pencil marks
Attach the rubber band
Place a ball of clay in the holder