My first big cannon

Boom! The classic potato gun harnesses the combustion of flammable vapor. Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.
KingKyro
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Sun Sep 12, 2010 7:53 am

this is my first big potato cannon i built. I call it BIG DADDY.
the chamber is 4" PVC that i cut to a 2' length. the barrel is a 4' long piece of 2" PVC screw on adapter (added after pics where taken) so i can remove from the chamber for cleaning and storage.
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Me firing the BIG DADDY
Me firing the BIG DADDY
the BIG DADDY logo on the barrel and igniter. (push button igniter off an old gas grill)
the BIG DADDY logo on the barrel and igniter. (push button igniter off an old gas grill)
l_05c56f06a43d4e84b800a268a93a020d.jpg (36.21 KiB) Viewed 4457 times
the chamber with my custom paint job (amazing what spray paint and a stencil can do...lol)
the chamber with my custom paint job (amazing what spray paint and a stencil can do...lol)
l_f3d2ef6a746048f7a1a2e78ec9626b0e.jpg (37.04 KiB) Viewed 4457 times
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jackssmirkingrevenge
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Sun Sep 12, 2010 1:04 pm

Nicely done, especially love the spikes :D
hectmarr wrote:You have to make many weapons, because this field is long and short life
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jrrdw
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Sun Sep 12, 2010 3:05 pm

Is that a Kustom Shop stencil? http://www.tcpglobal.com/kustomshop/ite ... -SKULL11-S

I think I have that one my self. Nice work on the cannon, did you use a adhiesion promoter or a plastic primer?

What kind of range you getting? Fuel used? Details my good man, details...
KingKyro
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Mon Sep 13, 2010 12:43 am

thanks. yes it is a kustom shop stencil. all i used on the cannon was spraypaint i bought from dollar general...lol hasnt faded yet. I use hairspray for fuel and im getting a good 200 yards give or take. i have a vid of me and my friends shooting it but i need to edit out all the boring parts before i upload it.
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bighead33
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Tue Sep 14, 2010 4:10 pm

i have a vid of me and my friends shooting it but i need to edit out all the boring parts before i upload it.
pleas do we have enough boring videos on spud files :D .

and what's your cannons name with that stencil and the way it's turned i cant make out a name.

and nice cannon what make your different is the spikes and the stencil all you have to do is witch out that BBQ ignition with a normal one, i just don't like that one.
some day spudfiles is going to take over the world.
KingKyro
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Tue Sep 14, 2010 9:33 pm

what's your cannons name with that stencil and the way it's turned i cant make out a name.

and nice cannon what make your different is the spikes and the stencil all you have to do is witch out that BBQ ignition with a normal one, i just don't like that one.[/quote]

My cannons name is BIG DADDY, As far as the ignition goes i didnt have any money at the time of creation so i ripped the igniter of of an old gas grill...lol
KingKyro
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Tue Sep 21, 2010 5:44 am

here is the link to my video. i edited out all the boring stuff and basically turned it into a music video with clips of the cannon before and after its paint job. not sure how to upload it here yet...lol

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jackssmirkingrevenge
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Tue Sep 21, 2010 5:50 am

[youtube][/youtube]

had to be Rammstein :D

I like how you turned it into a community event :) one little thing though, don't want to sound like a health and safety nazi but there's a bit around 2:20 where you swing the muzzle almost across the face of the cameraman (though granted it was pointed slightly upwards) that could have been dangerous in the case of accidental discharge. Muzzle awareness is as important for spudguns as it is for any other projectile launching device.
hectmarr wrote:You have to make many weapons, because this field is long and short life
KingKyro
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Tue Sep 21, 2010 6:33 am

Thanks for the tip on the muzzle. i dont think i realized i had the muzzle that low when i moved and i dont think the camera man was payin attention either. I'll definitely make sure i watch how i handle that issue from here on out.
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Tue Sep 21, 2010 6:39 am

At this juncture it's worth posting Jeff Cooper's 4 simple rules:

1. All guns are always loaded.

2. Never let the muzzle cover anything you are not willing to destroy.

3. Keep your finger off the trigger until your sights are on the target.

4. Be sure of your target and what is beyond it.


... and of course, mentioning the spudfiles legend of frog boy :roll:
hectmarr wrote:You have to make many weapons, because this field is long and short life
KingKyro
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Tue Sep 21, 2010 7:28 am

I read the article about frog boy. The only thing i would love to know is why the hell was he trying to shoot a frog in the first place and why did he look down the barrel after he prepped the gun to shoot. I know i made the mistake when i turned with my gun, the evidence is there in plain sight...lol. But even i know not to look into a loaded barrel for one and two you can clearly see my hand is nowhere near the trigger until im in the fire position. All else aside i greatly appreciate you taken the time to help me realize what i did wrong and help me with your advice. That's why i joined this site. i love the friendly helpful attitude
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bighead33
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Tue Sep 21, 2010 11:01 am

cbsnews wrote:On the Internet, they're a phenomenon, with nearly 9,000 spud gun hits. Web sites show people how to build or buy them cheap.
i hate that article :x they make it seem like spud guns and spud files are these evil weapon of mass destruction, just cause some guy shot his eye out doesn't mean there not safe or the people operating them aren't.
some day spudfiles is going to take over the world.
KingKyro
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Tue Sep 21, 2010 12:53 pm

I can agree there. The first thing i thought of when i read it was the old movie a christmas story,,, ( You'll shoot your eye out !!! ). The only reason they try to give us the bad press about spud guns in my opinion is because they dont know how to make one themselves or they are afraid of haveing fun for once in there pathetic lives. Is it wrong of me to laugh when i read the part about him being shot with a FROG? Dont get me wrong im not in anyway amused at the fact he got hurt but come on A F**king FROG
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