This instructable is on how to make a knife which can fire its blade. Useful when you are down to a knife when your opponent still has a gun, you can lull them into a false sense of security muahahaha! It can also fire small pellets.

I am not going to say 'it is my first instructable so be nice' because i hate it when people say that, so feel free to say so if it is rubbish. However, i do not want people saying bad things about k'nex in general.

Enjoy,

Knexguy

Step 1: Pieces Needed:

8 yellow 5-way connectors
4 red 3-way connectors
1 ball socket connector
1 light grey two-way connector
2 hand connectors
8 white rods
9 green rods
1 yellow rod
2 bendy orange/red rods the length of yellow rods
2 elastic bands

all knex colours are in the metallic colours.

pic 2: you will also need these three pieces.

Step 2: Make Frame

Make both of these identical pieces.

Step 3: Make Trigger, Ram, Ram Aligner and Side Support

pic 1: trigger

pic 2: ram

pic 3: ram aligner

pic 4: side support

Step 4: Make Blade and Pellet

pic 1: blade

pic 2: pellet

Step 5: Assemble the Knife

pic 1: take the frame pieces

pic 2: add the side support with a white rod

pic 3: add the other side of the frame

pic 4: insert a white rod through the hole indicated

pic 5: add frame aligner

pic 6: snap white rod on where indicated

pic 7: add trigger

pic 8: insert ram

pic 9:

Step 6: Adding Elastics

pic 1: where the ram elastic goes

pic 2: where the trigger elastic goes

Step 7: Loading and Firing

pic 1: the blade has to be this way up. push it in until the trigger makes a small clicking noise.

pic 2: the blade is now loaded

pic 3: the pellet must be this way up also

pic 4: the pellet is loaded

to fire press the trigger forwards