Facetious
Moderated
http://www.youtube.com/watch?v=pVDHIGaUxCk
http://tom.2ub.org/docs/potato_cannon.html
please shoot responsibly lol !
http://tom.2ub.org/docs/potato_cannon.html
please shoot responsibly lol !
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Anybody ever build a potato cannon ? :)
- Thread starter Facetious
- Start date
assholebythedoor
Baconsalt > WTC7
I have saw them, you take a piece of alluminum pipe, and a couple other things. shove a potato in it.
assholebythedoor
Baconsalt > WTC7
yes, but how do you make it
No_Man
Would you hit it?
Honestly, it was first constructed well before my time so I'm not entirely sure. It had kinda been handed down over the years as a fraternity heirloom and refined whenever we had an ambitious engineering student who was capable of doing so.
I know it looked basically like the cannon in the second link above. Almost entirely PVC piping. Slightly wider barrel (it was a bitch to find potatoes wide enough to fill it, I remember). Biggest difference was that it was not hairspray powered. It had a propane tank on it. I think somebody took the entire tank/ignition/burner assembly from a camp stove and managed to get it sealed into the base of the cannon. For safety, they had lengthened the ignition wire and used a modified sawhorse to lean the barrel against so that it could be fired from several feet away (instead of holding it in your lap like the idiot in the picture above).
I know it looked basically like the cannon in the second link above. Almost entirely PVC piping. Slightly wider barrel (it was a bitch to find potatoes wide enough to fill it, I remember). Biggest difference was that it was not hairspray powered. It had a propane tank on it. I think somebody took the entire tank/ignition/burner assembly from a camp stove and managed to get it sealed into the base of the cannon. For safety, they had lengthened the ignition wire and used a modified sawhorse to lean the barrel against so that it could be fired from several feet away (instead of holding it in your lap like the idiot in the picture above).
assholebythedoor
Baconsalt > WTC7
Well, the time I was around one, the man told me I had five seconds to get away. I could of went out side, but I chose not to see how it worked.
assholebythedoor
Baconsalt > WTC7
actually it is considered rocket science if you read about it.
coolbeers
Stick with Freeones
at 100 psi the velocity is at least 500 mph
make one of these:1orglaugh
http://www.duke.edu/~jwc13/tennisball.html
make one of these:1orglaugh
http://www.duke.edu/~jwc13/tennisball.html
Will E Worm
Conspiracy...
I'd like to put one in my ex-employer's tail pipe. 
I'd like a real canon or a rocket launcher.
I'd like a real canon or a rocket launcher.
Facetious
Moderated
I'd like to put one in my ex-employer's tail pipe.
Oh yeah ! That's a real good way to puzzle your enemies.
Let's see if anybody would like to articulate the effects of engine performance after shoving a potato into an auto exhaust pipe. he he
:rofl2:
Mr. Daystar
In a bell tower, watching you through cross hairs.
Yeah, they're easy. You need the heaviest gauge pvc pipe, I think it's referred to as, schedule 40, but ask a sales person at the supply store for the heaviest gauge, to make sure. You will need 2' of 6" diameter, a 6" screw on cap for one end, and a reducer from 6" dia. to 2" dia. for the other end. You will also need about 4' of 2" dia. pipe, of the same heavy duty gauge, as should be all of the fittings you use to assemble it, and the glue you are going to use to secure it all together. You will also need a gas grill ignition switch, you know the red button you press, that clicks and starts your grill. First drill a hole in the 6" pipe anywhere between one half and one third of the way between the end with the cap, and attach the ignition switch, use a LITTLE bit of silicon sealer to ensure the seal is air tight. Attach the reducer to the 6", and the 2" to the reducer, gluing ALL of the joints EXCEPT the end cap. You will remove this to add propellant, then screw it back on to create pressure. It's much easier with two people. Take a file, and on the small end that you will put the potato into, file around the inside, and outside to create a sharper, blade like edge so that the potato will be easier to stuff in. It's also a good idea to take an old broom stick, and lay it next to the 2" section of pipe, and tape it off so that when you push the potato down, you won't go to far, and shove it into the larger section, and damage the ignition switch. You also should know, some area's consider these things firearms, and discharging them can be a crime, you should know that they WILL cause very serious injuries if fired at anything living, and can destroy property, especially if you freeze the potato and fire it at a car door. Have fun, but be cool, make sure you can find a big open field to shoot it in, because if you are near windows, cars, and other assorted objects that you would find in most urban areas, you will end up getting a visit from someone. Oh, and I found that Pheaton brand carb cleaner, or Brute 33 deodorant worked the best. Open the cap, spray a 2-4 second blast, quickly screw on the cap, and press the ignition switch. You can get a pretty good flame from the end, if you just ignite the propellant, and don't put a tater in the barrel.
We used to make them in college, only we used frozen oranges for a truly lethal projectile. We were right on the river at a pretty wide point and had a long running challenge to see who could build a cannon that would shoot an orange clear across the river. One time some guys accidentally shot one through the window of the passenger ferry and after that we all just kind of lost interest...
lostwood_7
You can check out any time you like, but you can never leave FreeOnes.
I have built a handful of these rigs, PVC is not the best material you can use. But it is the cheapest and the least machine intensive material out there. Do a web search and you can find at least 50 plans on "how-to".
:sunny:My only input is don't be a pussy and use hair spray, use Gumout Carb and Choke cleaner, make sure it has ether in it.(I think they reformulated it sometime ago) Pound for pound that shit is amazing. When you finally feel like being a thrill seeker move up to metal pipe and propane.
:sunny:My only input is don't be a pussy and use hair spray, use Gumout Carb and Choke cleaner, make sure it has ether in it.(I think they reformulated it sometime ago) Pound for pound that shit is amazing. When you finally feel like being a thrill seeker move up to metal pipe and propane.
Galactic
Pain heals, chicks dig scars, Freeones lasts forever
A buddy of mine years ago made one and shot it at my door. I mean ON my fucking door. Thing is, the door wasn't shut all the way. So not only was the door covered in grimy white potato film, but the cannon forced the door open, and shot potato jizz all over the fucking place. Weeks later we were still finding bits and pieces of potato.
Fucker thought it was soooooo funny. Actually, it is.
Fucker thought it was soooooo funny. Actually, it is.
Mr. Daystar
In a bell tower, watching you through cross hairs.
It's the better material if you plan on putting it on your shoulder and firing it like a bazooka. I would agree that aluminum or steel pipe would make a stronger cannon, but you're not hoisting one of cast iron on your shoulder, and for what you would pay for an aluminum one, you could buy a real gun. We would shoot ours like a bazooka crew. Gunman down on one knee, man standing behind sprays fuel, and caps gun. Another thing we tried was, putting a sight on it. We would use one of those hose clamps like on a radiator, and slip something up from the inside, through one of the slots, opposite the adjustment screw, and then tighten it down real good.
Sicario
Out of my mind. Back in five minutes.
For Y2K, a couple of friends and I were going to build a big one in my buddies backyard in Plainfield, IL until some ass wipe neighbor decided to call the cops. My friends house sits on five acres with wide open space in back, but the 5-0 put a stop to that and threatened to give us citations for not having a permit to build such contraption. The funny thing is, sometimes we would paint ball on his property with no problems.
Oh well.
Oh well.
