A way to send halloween treats into the sky, without wadding or dangerous projectiles.

video

see the video. 3 sec. hang timefor the candy. container didn't leave the barrel because of loose seal.
 
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Step 1: First you need a large barrel potato gun.

This is the threaded end, where the fuel goes (I use ether). I added screws in addition to the ABS glue for extra strength, although it probably isn't necessary. It is also your access to the ignitor (see next step) and how you ventilate the cannon between shots, to get some fresh air inside quickly.
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Jakeg says: Oct 18, 2009. 11:16 AM
so what do I use that makes it explosive. Is it just the air thats pressurized?
Jimmy Proton in reply to JakegJul 31, 2010. 1:18 AM
hairspray is the most common but you can use most any flammable in a spray can
Colonel88 says: Nov 13, 2009. 2:06 PM
"GTFO you crazy kids! *Shoots at the kids* There, you happy?!?"
geodez says: Sep 28, 2009. 2:30 PM
i see i am supposed to aim it up instead of pointing it at them.
7777777777 says: Jun 3, 2009. 6:45 PM
where can I buy this cannon?
geodez in reply to 7777777777Sep 28, 2009. 2:28 PM
you have to build it, here is a link to a basic cannon, works very well.http://dangerouslyfun.com/spud-gun
thefunktopus says: Apr 16, 2008. 4:25 AM
whats a potato gun? could it be something that fires potatoes? where would i get one? Is there any way to mod this so it can fire rocks or small animals?
Wafflicious in reply to thefunktopusMar 9, 2009. 12:19 PM
Make one with PVC. Yes it can fire small animals but just not your little sisters pet mouse.
Thundertydus in reply to thefunktopusOct 28, 2008. 7:31 PM
hahahahahah wow the last line made me crap my pants laughing
yeerk21 in reply to ThundertydusNov 7, 2008. 9:43 PM
i agree
finnster in reply to thefunktopusJun 29, 2008. 4:03 PM
how do you not know what a potato gun is
Big Bubba in reply to finnsterAug 17, 2008. 8:00 PM
look at this Bad @$5 potatoe gun finn
PotatoGun.jpg
finnster in reply to Big BubbaAug 21, 2008. 7:04 AM
lol haaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa haaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
Big Bubba in reply to finnsterAug 17, 2008. 7:56 PM
look at this one, thats bad-@$5
PotatoGun.jpg
Big Bubba in reply to Big BubbaAug 17, 2008. 8:03 PM
(removed by author or community request)
T3hpw9ag3 in reply to Big BubbaDec 28, 2008. 6:28 PM
(removed by author or community request)
thefunktopus in reply to finnsterJun 30, 2008. 8:31 AM
i thought they were small handguns
Wafflicious in reply to thefunktopusMar 9, 2009. 12:15 PM
those are spud guns
finnster in reply to thefunktopusJul 5, 2008. 8:11 AM
big foot duck can explain
bigfootduck in reply to thefunktopusJun 11, 2008. 5:51 PM
a potato gun is a big cannon, about the same size as this cannon, but it launches potatos hundreds of feet. It is powered by a chamber full of hairspray. You stick the potato in, light the hairspray, and watch the potato burst through walls. I mad a mini one out of a chapstick container once. It was cool!
DYLEGO in reply to bigfootduckJan 9, 2009. 9:53 AM
hairspray is for whimps! you need to go pneumatic if you want to go "hundreds of feet". A pneumatic potato cannon has an air chamber filled to 80-90 psi, and a sprinkler, ball, butterfly, or piston valve right after the air chamber. when you open the valve, the air pushes the projectile out the barrel.
T3Hprogrammer says: Oct 18, 2008. 7:07 PM
I've built a similar device and found that you can nearly double the range/power by putting the container in the other way (opening facing down.) This way the air pressure will expand it, making a better seal, rather than compressing it and creating leaks around the edges.
kiss my donkey says: Oct 18, 2008. 3:13 PM
bad @$$ potato gun
johnnyoh says: Sep 12, 2008. 12:41 PM
I had encountered the wadding problem with my cannons as well. I found that a simple paper cup works if you mark the outside of the cup where it becomes snug in the barrel and then cut down to that point from the rim at the 12 3 6 and 9 o'clock points of the rim. Basically it functions much like a shotgun wadding and lands a few feet away.
paper warrior says: Sep 11, 2006. 4:54 PM
use a beer can filled with concrete for ammo, you could probably knock down a tree or total a car
bob the builder #1 in reply to paper warriorAug 1, 2008. 6:42 PM
LOL
theosullis says: Jul 14, 2008. 8:30 AM
My friend used gasoline instead of hairspray and the whole gun blew up in his hand and almost sent him to the ER. Just a moral, HAIRSPRAY IS YOUR FRIEND!
zachninme says: Sep 11, 2006. 2:59 PM
I would like it if someone could build a "nice" one... one that you can do inside... and won't kill innocent bystanders...
adamazing in reply to zachninmeAug 25, 2007. 12:17 AM
Prrrfft. In my experience, bystanders are rarely innocent.
xproplayer in reply to adamazingApr 2, 2008. 3:18 PM
lol there could be a robber in a crowd dun dun dun lol
Camster911 says: Sep 9, 2006. 7:22 AM
Wow! Knock the children out by embedding hard boiled sweets in there sculls, nice one! :D
Ushanka in reply to Camster911Sep 9, 2006. 2:01 PM
For the record, I launched lollipops out of a model rocket. Yeah, I got hit in the head with one falling from 500 feet. No, I did not crack my "scull". It's friggin CANDY. There's very little momentum and it's mostly prone to shatter if it hits something firm.
jeffconnelly in reply to UshankaDec 23, 2007. 5:54 AM
yeah, try using it at a parade
Kayjay in reply to UshankaJul 13, 2007. 5:23 PM
not to mention the extra drag created because of the wrappers they arnt the best 4 aerodynamics
knexgunner94 in reply to KayjaySep 12, 2007. 2:52 PM
lets make candy parachutes, then we could drop them from model airplanes
funwithfire325 in reply to knexgunner94Oct 6, 2007. 7:50 PM
lol my uncle flies thoughs
xproplayer in reply to funwithfire325Apr 2, 2008. 3:11 PM
lol knock someone out with a good 15,000 feet of momentum
Ushanka in reply to xproplayerApr 2, 2008. 4:40 PM
Nah, the candy will break before anything bad happens. The momentum will be about the same from 15,000 feet as it will from 150 feet. Candy is not very aerodynamic (Well, I suppose Tootsie Pops are pretty bullet-like) and it will have a slow terminal velocity. Combined with the small mass the momentum will be less than knock-someone-out strength. Moral: No Tootsie Pops. :P
octavian234 in reply to UshankaSep 14, 2008. 5:05 PM
what about jaw breakers?
Bad Donut in reply to UshankaSep 10, 2006. 5:34 PM
:D
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