Small Yet simple and powerful knex firework or marble launcher. WARNING: I am not responsible for any one that gets hurt while using this launcher!
Step 1: Pieces
first you need,
9 yellow rods
1 white connecter
a rubber band
1 red rod
1 end gray piece
8 orange connecters
Step 2: Connecting
first take 8 yellow rods and connect them to the white connecter.
Step 3: Connecting2
Then take the 8 orange connecters and connect them to the ends of the yellow pieces.
Step 4: Building the Ram
to build the ram you need the rubber band, red peice, gray piece, and the last yellow rod.
Put the connecter on the red piece then slide the rubber band through it. Next put the yellow rod through the end of the gray piece.
Step 5: Putting It Togehter
put the ram into the hole of the white connecter. Then slide the rubber band around each side of the orange pieces, and over the yellow ones connected to it.
Step 6: Aim, Fire!
then pull back the yellow piece of the ram, load the firework or marble, and fire!