Picture of Knex Tyre Cannon
It started off as a way to store all of my extra green rods but then i though it could be used as a giant barrel so i made this!!!! it is quite powerful however it is easily damaged if dropped or gripped too hard!!
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Step 1: Pieces

Picture of Pieces
You need:

8 large wheel tyres
2 large wheels
3 elastic bands (UNLIKE IN THE PICTURE)
112 green rods (not including ammo)
2 tan connectors
1 small wheel and tyre
1 grey rod
1 white connector

Step 2: The Barrel

Picture of The Barrel
This it the bit that takes for ages to do!!! Take the 2 wheels and put 2 of the tyres on them then pic up some of the green rods and press them into the tyre treds as hard as you can, as in the picture. then repeat this with the rest of the tyres.

Step 3: Firing rod

Picture of Firing rod
For this you need the small wheel, the grey rod, 2 tan clips and a white connector.
clip the tan clip on the end of the grey rod so that the small rod on the clip is pointing towards the rest of the rod. then slip the wheel on so the tan clip is connected to the wheel. then attach the other tan clip to the rod but on the opposite side to the other clip and so it faces the wheel and connect it to the wheel. then push the rod through the wholes on the large wheels in the barrel and then clip onthe white connector to the end. as below

Step 4: Attaching the bands

Picture of Attaching the bands
Put 2 large elasic bands in the top clip of the white connector (i forgot to put 1 on it the pic) and then hook these bands on to the treads of the tyres and then put a other band around them to secure them.
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knexboy5862 years ago
Asome 5*
its a awesome grenade
i reinforced the inside of mine with duct tape!
Furloy5 years ago
 nice idea but after one shot it turnes into bullshit because youll brake it re-loading, just throw it
ravens claw5 years ago
your gun sucks ha ha you got owned
Did I?...Really?
DrWeird1177 years ago
this gun, or any of Loosewire; SOE Operative's stuff=OWNAGE!!!!!!!!!!!!

worth the 5.154396 seconds it took to build.

airsoft BBs- pour entire container in-release=BOOM!!!!!!!!!!!!!!!!!!!!

only true shotgun on this site! +10000000000000
 mine is a true shotgun kinda

Not the only shot gun, and that still wouldn't be a real shotgun, for there is no pump, stock, trigger, handle, and much of a body.........
A shotgun doesn't need any of those except the trigger.
Either a pump or shells loaded through the back. And it does need a handle....show me a shotgun that is considered a shotgun that has no handle or pump/shells.....
Well...I guess it needs a handle. And shells, you need those. There are some single shot shotguns. And the standard double barrel coach gun, it has no handle per se, and has no pump. l guess you're right.
they dont need handles. have you seen the older, wooden and metal ones? you hold a part of the gun. although it could be considered a handle...
I know, like a standard double barrel coach gun?
In my opinion, it is the only shotgun yes... But not for long: http://www.instructables.com/id/SN723DQFLB4PP3G/ Fifth image.
i like apples too!!!!!!!!!
more of a flak then a shotgun.
i wonder where we would be know if this was the first knex gun
no username5 years ago
RPG stands for rocket-proppeled grenade. why did you name it that?
Because it can be loaded with K'nex 'rockets'.
Knexman20206 years ago
Spelling mistake. Step 5, pritty (pretty) I admit i spell that wrong sometimes. Nice idea for a gun! *notice how i said something about the gun*
superdood6 years ago
could you fire your pepper grenade from this?
im modding this in to a grenade launcher.
T.E.A.6 years ago
u could put the ball of death in here (its a knex grenade look it up)
Oblivitus7 years ago
You should make a box of k`nex around it to bind it together and figure out a way to make a trigger (probably put it behind the barrel) and attach a handle as well.
mxboy147 years ago
+2 iv never seen any one use tires in that way before creative and cool well I'm going to steal your barrle and going to make a gun rite now!!!
Sounds interesting, I'm eagerly awaiting it.
Pumpkin$7 years ago
+1 because real knexers are rare
Thank you.
pyroboy2127 years ago
this would be great for airsoft. sick instructable!!
DanAlmighty7 years ago
well, im gonna post an instructable anyways but here's the preview for it. if u replace the green rods with white, and u use about 5-10 tires guess what you made? a gernade! just throw it against a wall and it will literally rain down about 50-100 white pieces. cool to play with but takes forever to put back together
That would be one of the funniest things i would have ever seen in my life!
it is very funny indeed.
AWESOME! somehow, this is very funny to me.. but cool-funny.
Well thank you.
ferrari4847 years ago
Nice, simple build to make.
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