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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 ...
Parts: 3" hinge (I bought a door hinge from Walmart with the screws) 8' of 2x4 12 decking screws 4 eye bolts 3' 1/4 inch rope 90 degree ...
Cut the 2x4 into one two foot section, 2' 3" foot section and one 5' 9" section. The 5' 9" section will be the base.
Attach the hinge about 1' 9" from the back of the board so that one side of the hinge can lay against both sides of the board. Screw ...
Attach the 2' 3" section to the front of the base useing the 90 degree angle on the back and 2 screws on the front.
Attach the can with one screw in the center of the can at the top of the throwing arm. Attach an eye bolt on the bottom of the ...
Tie the rope with about two feet of slack between the back eye bolt and the bottom one. Next attach the bungee cord from the front eye bolt ...
Enjoy your new catapult that the bungee cord controls how far it will fire.
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