Introduction: The Kne'x Catapult

this is my knex catapult for the launch it competition when you first build it it needs some fine toning but it is a great catapult otherwise.

Step 1: Materials

1 grey rod
2 large wheels
6 blue rods
one very large rubberband 
12 red rods
7 yellow rods 
11 white rods
2 orange conectors
6 red connectors
8 purple connectors
8 blue connectors
8 green conectors
3 yellow connectors
6 white connectors
3 grey connectors
ammo
one small ruberband
one red conector

Step 2: The Lower Body

Step 3: Appendages

these are adjustable for the most part

Step 4: The Upper Body

after you are done with this part stack the two parts of the body 

Step 5: Ammo

tie the small rubber band through the hole of the red connector and tie it around its self so that it may hook on