GUN Potato Guns?

Discussion in 'On Topic' started by Iceburn, Jul 18, 2006.

  1. Iceburn

    Iceburn Made in the USA

    Joined:
    May 16, 2006
    Messages:
    3,043
    Likes Received:
    0
    Location:
    Scottsdale, AZ
    Does anyone else here have one? I think they're just as fun as shooting real weapons. What else can compare to lobbing a potato clear across a football field?

    My BBQ starter ignited 5-foot, 2.5in, spud gun.
    [​IMG]
     
  2. BigBadJohn

    BigBadJohn Pay-back time OT Supporter

    Joined:
    Sep 11, 2005
    Messages:
    21,272
    Likes Received:
    8
    Location:
    Kell, Illinois
    Ive always wanted to build my own airpowered one, but never had the parts or designs.
     
  3. BigBadJohn

    BigBadJohn Pay-back time OT Supporter

    Joined:
    Sep 11, 2005
    Messages:
    21,272
    Likes Received:
    8
    Location:
    Kell, Illinois
    How is yours constructed?
     
  4. BigBadJohn

    BigBadJohn Pay-back time OT Supporter

    Joined:
    Sep 11, 2005
    Messages:
    21,272
    Likes Received:
    8
    Location:
    Kell, Illinois
    Have you ever used your cannon to destroy stuff?


    What would happen if the chamber were 2 or 3 times longer?
     
  5. Iceburn

    Iceburn Made in the USA

    Joined:
    May 16, 2006
    Messages:
    3,043
    Likes Received:
    0
    Location:
    Scottsdale, AZ
    I shot it at a broken printer completely blasting it appart and at a pigeon having a similar effect. Shit on my car will you? :rl:
    Edit: To answer your question it would make a bigger explosion and result in more power but to make it effecient you would need 2-3 igniters to insure even combustion. Also if you makeit too big it starts getting dangerous. Think PVC pipe bomb going off in your hands.
     
  6. BigBadJohn

    BigBadJohn Pay-back time OT Supporter

    Joined:
    Sep 11, 2005
    Messages:
    21,272
    Likes Received:
    8
    Location:
    Kell, Illinois
    I guess after you make the chamber so big, it wont matter because the potato will already be out of the barrel before it can force it out at top speed, so I guess, with the lengthening of the chamber you also have to lengthen the barrel :dunno:
     
  7. BigBadJohn

    BigBadJohn Pay-back time OT Supporter

    Joined:
    Sep 11, 2005
    Messages:
    21,272
    Likes Received:
    8
    Location:
    Kell, Illinois
    What about a spark plug ignited one! :eek5:
     
  8. Iceburn

    Iceburn Made in the USA

    Joined:
    May 16, 2006
    Messages:
    3,043
    Likes Received:
    0
    Location:
    Scottsdale, AZ
    Have fun lugging around a 12-volt car battery. :)
     
  9. BigBadJohn

    BigBadJohn Pay-back time OT Supporter

    Joined:
    Sep 11, 2005
    Messages:
    21,272
    Likes Received:
    8
    Location:
    Kell, Illinois
    Well what do you mean by bbq starter? An electric sparker use to start a gas grill or just a stick lighter?



    Could use a lawnmwer battery :dunno:
     
  10. mds2004

    mds2004 OT Supporter

    Joined:
    Jul 10, 2004
    Messages:
    10,600
    Likes Received:
    2
    Location:
    Bakersfield, CA
    From what I have read the BBQ lighter seems to be the cheapest but the most efficient one is the stun gun.
     
  11. BigBadJohn

    BigBadJohn Pay-back time OT Supporter

    Joined:
    Sep 11, 2005
    Messages:
    21,272
    Likes Received:
    8
    Location:
    Kell, Illinois
  12. Wave

    Wave Carlos Spicy Weiner

    Joined:
    Mar 21, 2000
    Messages:
    3,524
    Likes Received:
    0
    Location:
    Seattle, WA
    Mine's rigged with an oldschool flint sparker. The kind you see people lighting blow torches with. Something like this:

    [​IMG]

    I actually found a barrel just the right size to hold a golf ball. :bigthumb:
     
  13. BigBadJohn

    BigBadJohn Pay-back time OT Supporter

    Joined:
    Sep 11, 2005
    Messages:
    21,272
    Likes Received:
    8
    Location:
    Kell, Illinois
    How close are you guys when youre igniting your cannons?
     
  14. silversilvia

    silversilvia OT Supporter

    Joined:
    Sep 28, 2003
    Messages:
    1,066
    Likes Received:
    0
    When i was living up in Alaska i strapped mine to the roof of my minivan and drove around and shot shit. once i shot at a friends garage door. made a huge crack in the front part and dented the internals so bad that it wouldn't go up past that point.
     
  15. BigBadJohn

    BigBadJohn Pay-back time OT Supporter

    Joined:
    Sep 11, 2005
    Messages:
    21,272
    Likes Received:
    8
    Location:
    Kell, Illinois
    Should have mounted 2 cannons on the ''Air forces super secret weapon'' :bowdown:
     
  16. Iceburn

    Iceburn Made in the USA

    Joined:
    May 16, 2006
    Messages:
    3,043
    Likes Received:
    0
    Location:
    Scottsdale, AZ
    I just push a button and boom!
    This is what a BBQ igniter looks like. It makes a small spark when you push the button.
    [​IMG]

    This guy made an igniter from a taser.
    http://www.advancedspuds.com/stungun.htm
     
  17. 7

    7 First comes smiles, then lies. Last is gunfire.

    Joined:
    Jul 5, 2002
    Messages:
    25,055
    Likes Received:
    0
    When I knew where the one I had was I used to fire it off my leg :dunno:
     
  18. sparq

    sparq New Member

    Joined:
    Dec 3, 2004
    Messages:
    13,183
    Likes Received:
    0
    Location:
    Syracuse
    I used to have one, 4" tank, 2" barrell.... did it the cheap way, drilled out an end cap and hot glued a long stick lighter in. Worked good, but after a few firings the hot glue would warm up and you would have to let it cool down. I was like 13 or 14 at the time, so I didnt care.

    I would like to build one again, but living in the city right now I got no place good to shoot it.
     
  19. Want2race

    Want2race Fearless

    Joined:
    May 29, 2001
    Messages:
    6,699
    Likes Received:
    0
    Location:
    Georgia
    Im pretty sure the ATF classifys them as a destructive device...

    Just buy a full auto gun/ short barrel ar15.. The jail time will be more worthwhile!
     
  20. millero

    millero Aluminum Member

    Joined:
    Jun 10, 2004
    Messages:
    3,566
    Likes Received:
    0
    Location:
    South Carolina
    mine shoots carrots. basically the same as any potato gun but the barrel is 3/4".
     
  21. Iceburn

    Iceburn Made in the USA

    Joined:
    May 16, 2006
    Messages:
    3,043
    Likes Received:
    0
    Location:
    Scottsdale, AZ
    They're not Destructive Devices

    Department of the Treasury
    Bureau of Alcohol, Tobacco, and Firearms
    Washington, DC 20226
    As defined in section 921(a) (3) of Title 18, United States Code (USC) the term "firearm" means --
    • (A) any weapon (including a starter gun) which will or is designed to or may readily be converted to expel a projectile by the action of an explosive;
    • (B) the frame or receiver of any such weapon;
    • (C) any firearm muffler or firearm silencer; or
    • (D) any destructive device. Such term does not include an antique firearm.
    We have previously examined that certain muzzle loading devices known as "potato guns." These potato guns are constructed from PVC plastic tubing. They use hair spray or a similar aerosol substance for a propellant, and have some type of spark ignitor. We have determined that these devices, as described, are not firearms provided that they are used solely for launching potatoes for recreational purposes. However, any such devices which are used as weapons or used to launch other forms of projectiles may be firearms and destructive devices as defined.
     
  22. Aequitas

    Aequitas If it keeps on raining, levee's going to break.

    Joined:
    Oct 3, 2005
    Messages:
    5,406
    Likes Received:
    0
    Location:
    Florida
    I've got one, I'll have to get the exact measurements when I get home, and a pic or two. My friends and I decided to make it air powered instead of by hairspray.

    We bought an air compressor from walmart, instead of an ignitor at the back we drilled a hole and installed a tire valve, and used a ball valve in between the barrel and the air chamber. It'll launch a golfball pretty damn far when you get it up to around 100 psi.
     
  23. Keesh

    Keesh New Member

    Joined:
    Oct 26, 2003
    Messages:
    15,333
    Likes Received:
    0
    I always wanted to build one with some friends in highschool but we never got around to it.
     
  24. TwistedMind

    TwistedMind New Member

    Joined:
    Mar 20, 2004
    Messages:
    10,608
    Likes Received:
    0
    I have one.

    3" X 18 " combustion chamber
    1.5 " barrel will launch a one pound pepsi bottle filled with sand 300 feet. Im scared to really test it out though
     
  25. twofourtysx

    twofourtysx New Member

    Joined:
    Aug 19, 2002
    Messages:
    13,091
    Likes Received:
    0
    Location:
    CA
    I built one back in the day, its lost somewhere now. That thing had a bigger chamber than the one pictures. You should of seen how far the potatos went ;eek3:
     

Share This Page