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Potato Cannon

— Posted by Duckster on 1:02 pm on Jan. 5, 2002

Hi everyone.
I have been wanting to make a potato cannon for some time but havnt been able to find the stuff to make it with. Could somebody tell me where I could get the stuff for it in the UK and how much it should cost?

— Posted by dellexo on 8:36 pm on Jan. 10, 2002

http://www.geocities.com/spudguns_uk/ hope it helps:biggrin:

— Posted by somefukinsnapov on 3:05 am on Jan. 25, 2002


— Posted by OBCT on 8:13 am on Jan. 25, 2002

both of my spudguns are made with components which were bought at my local B&Q. i would recommend making a pneumatic rather than a combustion cannon because they are generally more powerful and you can keep them powered-up for longer periods of time.

— Posted by pyroman on 7:04 pm on Feb. 5, 2002

Go to xinventions.com that kid has a bunch of stuff on pneumatic cannons check out his links also

— Posted by somefukinsnapov on 4:20 am on Feb. 9, 2002

my best (and easiest)is the aerosol can with the top tapped out,then tape the ass out of the exposed end with gaffer and a 3-4 foot peice of pvc. nail a hole in the end,load with metho and shake out excess, then light the hole, the more compression the more power

email me if u want more details or diagrams

(Edited by preditor at 11:03 pm on Mar. 19, 2002)

— Posted by Omagaman on 5:43 am on Feb. 9, 2002

Well gentelmen, I had added this site called xinventions to my favorites for it does have some merit.  Any ideas are better then no ideas, give the boy a break. At lease it has nothing to do with a web site that I saw devoted to launching nerfs! Yuck, save me…!

— Posted by Omagaman on 9:20 am on Feb. 9, 2002

I thought his plans were free. I WANT FREE STUFF! I’LL GIVE YOU FREE STUFF!!

(Edited by preditor at 11:04 pm on Mar. 19, 2002)

— Posted by dellexo on 2:50 pm on Feb. 9, 2002

Check out the link i posted (second post on this thread) there is quite a few plans there for pnumatic and combustion guns there

— Posted by rageing redneck on 11:03 am on Mar. 22, 2002

my favorite potato cannon consisted of an 8 foot peice of stainless steel pipe,thread a gas grill ignitor in the side of it,(you did figure out that one end of the pipe is welded shut right),with this construction your cannon can with hold a blast of nitro!!!!!!! WWOOOOOOOOOOOOOO HHHOOOOOOOOOOOOO HELLFIRE!!!

— Posted by trowe on 11:57 am on Mar. 22, 2002

This one packs quite abit of punch.

    A simple cannon can be made from a thick pipe by almost anyone.  The
only difficult part is finding a pipe that is extremely smooth on its interior.
This is absolutely necessary; otherwise, the projectile may jam.  Copper or
aluminum piping is usually smooth enough, but it must also be extremely thick to
withstand the pressure developed by the expanding hot gasses in a cannon.  If
one uses a projectile such as a CO2 cartridge, since such a projectile can be
made to explode, a pipe that is about 1.5 – 2 feet long is ideal.  Such a pipe
MUST have walls that are at least 1/3 to 1/2 an inch thick, and be very smooth
on the interior.  If possible, screw an endplug into the pipe.  Otherwise, the
pipe must be crimped and folded closed, without cracking or tearing the pipe.
A small hole is drilled in the back of the pipe near the crimp or endplug.
Then, all that need be done is fill the pipe with about two teaspoons of
grade blackpowder or pyrodex, insert a fuse, pack it lightly by ramming a wad
of tissue paper down the barrel, and drop in a CO2 cartridge.  Brace the cannon
securely against a strong structure, light the fuse, and run.  If the person is
lucky, he will not have overcharged the cannon, and he will not be hit by
pieces of exploding barrel.  Such a cannon would look like this:

            __________________ fuse hole
    | |______________________________________________________________|
    |endplug|powder|t.p.| CO2 cartridge
    | ______|______|____|____________________________________________

    An exploding projectile can be made for this type of cannon with a CO2
cartridge. It is relatively simple to do. Just make a crater maker, and
construct it such that the fuse projects about an inch from the end of the
cartridge. Then, wrap the fuse with duct tape, covering it entirely, except for
a small amount at the end. Put this in the pipe cannon without using a tissue
paper packing wad. When the cannon is fired, it will ignite the end of the fuse,
and shoot the CO2 cartridge. The explosive-filled cartridge will explode in
about three seconds, if all goes well. Such a projectile would look like this:

         |   |
         | C |
         | M |
         |   |
         |   |
         | /|
         | | | —- tape
           | —— fuse

— Posted by Radiant on 11:58 am on Mar. 22, 2002

this page rules www.spudtech.com

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