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In this Instructable I will show you how to build a neat little catapult. It requires only a few materials and about an hour of your time. This can be made out of foam board, balsa wood, or various other sturdy, but light materials. And it shoots pretty far for a catapult of its size. I got mine to shoot a plastic airsoft BB 27 feet with only 2 rubber bands.
 
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Step 1: Materials and Tools

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In order to make this project you need a few household things, such as:

Tools
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-Utility or X-acto knive
-Straight pin
-Dremel rotary tool (if you are using balsa wood)

Materials
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-Foam board or balsa wood
-Toothpicks (about 5)
-Super small rubber bands (I used braces rubber bands)
-Super Glue (only if you are using balsa wood)
-Printed out template

Step 2: Cutting the Pieces

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After gathering the materials and tools needed, you can cut out the templates for the pieces. Trace the borders of templates on the foam board or balsa. Using a utility/ X-acto knife cut all the pieces out of the foam board. To make it easier I like to put a piece of carpet under the foam board while I am cutting.

Step 3: Constructing the Frame

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First, where ever there is an X on the templates, using the straight pin poke a hole all the way through the foam board. These small holes will allow the toothpicks to go in easier. Next, cut or break two toothpicks in half. Then, while holding the pieces of the frame together stick the piece of toothpick up through the base and into the side. After the bottom of the toothpick is flush with the base, the point of the toothpick should be sticking up through the side. You can trim this off. You might be thinking why am I using toothpicks and not using some sort of adhesives. Super Glue dissolves foam and hot glue will melt it. I didn't have any other glues, but if you have others that work, you can also use them.
dubswag1 year ago

make a super small ver. of this thingi need to have a catapult for a castle project

i made one that is a fourth smaller than that one with even a firing mechanism and an adjustable elastic strength system.
( its the size of a quarter)

i want to know how you did it then

This is a sick pocket-sized weapon for in class!
jdock74 years ago
i am thinking of using ply wood would that be bad and would i have to make any changes to the steps
Win Guy5 years ago
XD Awesome! 5/5!
Awesome
Hudmaster5 years ago
 Could you give some measurements?  I know it's kind of picky, but I'm doing this for a school extra credit project...
Iliketomakestuff (author)  Hudmaster5 years ago
Yeah Sure! I'll will try to have and update by october  20th
Hudmaster5 years ago
 Looks completely perfect!!
'Mom....do we have any foam board...why?  Um....'
Peacedude5 years ago
The art of warfare in the palm of your hand! wicked!
You could launch mini little seed bombs with this thing and remember vote for How To Make A Seed Bomb and good luck on the contests!
carsoncool6 years ago
I'd love to try it!
al95956 years ago
i like it, nice catapult!