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Harpoon gun

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Harpoon gun

Unread postAuthor: brplatz » Sun Sep 21, 2008 2:30 pm

Hey all, i have made many cannons before as some know, but this is a first attempt at a retrievable harpoon type gun.

Pretty basic but i think it looks pretty Nice.

Chamber: Old fire extinguisher (not sure of volume ATM)
Barrel: 1/2 SCH 120 about 1.5' long
Valve: Modified 1" Sprinkler Valve
Older finshing reel
Harpoon: made from a fiberglass rid that fits perfectly in the SCH120 barrel.

So here it is!

Image
Image
Image
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"Any problem on Earth can be solved with the careful application of high explosives...the trick is, not to be around when they go off" Col. Mertz Von Quiriheim
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Unread postAuthor: Pilgrimman » Sun Sep 21, 2008 3:12 pm

Nice cannon! I like how the tank is incorporated into a kind of stock. That thing could take some serious pressure if you upgrade to a QEV! Btw, your sig says your isp is Oregon State. I'm there too! We need to do some spudding together :D
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Yeah, we wouldn't want to anger the bees, now would we??

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Unread postAuthor: jackssmirkingrevenge » Sun Sep 21, 2008 3:15 pm

Pilgrimman wrote:your sig says your isp is Oregon State. I'm there too! We need to do some spudding together :D


It says that *your* IP is Oregon State :p

Nice cannon, does it actually work, in harpoon terms?
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Unread postAuthor: Pilgrimman » Sun Sep 21, 2008 3:20 pm

It says that *your* IP is Oregon State :p


Well, that demonstrates my ignorence of the internets:P
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Yeah, we wouldn't want to anger the bees, now would we??

I HATE YOU BEES! I HATE YOU BEES! I HATE YOU BEES!

LMAO Classic!!!! I love Family Guy!
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Unread postAuthor: brplatz » Sun Sep 21, 2008 3:26 pm

its a little back heavy due to the metal ring that covers the last 2.5" or so. i think i will hacksaw it off so only a little of the metal is there to see if longer range flight is better.

Short range ( 10 feet) is pretty good but i haven't shot it over 35 psi.

More tests to come!

Yes the sig is a funny lil thing i found and liked it so i used it.
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Unread postAuthor: Sticky_Tape » Sun Sep 21, 2008 5:28 pm

Cool gun but about your sig: does it say your ip is 142.68.161.7 for everybody who sees it? Check.
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You can tell how awesome a cannon is by the pressure used.
http://www.spudfiles.com/forums/high-pr ... 12803.html
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Unread postAuthor: blind909 » Sun Sep 21, 2008 6:09 pm

Sticky_Tape wrote:Cool gun but about your sig: does it say your ip is 142.68.161.7 for everybody who sees it? Check.


No, That is YOUR IP Sticky. The whole purpose of the sig is to freak people out. The only IP you will see on one of those sigs are your own. Now everybody knows YOUR IP because I had to quote your post. If you would have read the above posts, you would of knew that. Basically what it is a 1 way mirror, where It will show you your own IP, And all that info, but nobody else will see it, freaky huh?
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Unread postAuthor: cannon monkey » Sun Sep 21, 2008 7:12 pm

every nice cannon and i just got the code for that little sign i plan putting it as my sig

i like the reel on there i did that once :lol:
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Last edited by cannon monkey on Sun Sep 21, 2008 7:52 pm, edited 1 time in total.

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Unread postAuthor: nivekatoz » Sun Sep 21, 2008 7:51 pm

Thats a very cool gun. I was thinking of doing something like that with my gun.
You could try using real arrows..You might have to mod them a little. I think they would work good.
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Last edited by nivekatoz on Thu Sep 25, 2008 4:56 pm, edited 2 times in total.

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Unread postAuthor: brplatz » Sun Sep 21, 2008 8:03 pm

Thanks guys!

Yes the sig is just as blind909 says it is.

the harpoon does not fly as well as i want it to so i am looking into a better design at the moment
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Unread postAuthor: biggsauce » Sun Sep 21, 2008 10:57 pm

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Unread postAuthor: starman » Mon Sep 22, 2008 12:07 am

Very cool and solid looking gun. I'm sure with a little work you will get your harpoon performing better. I'm thinking a somewhat longer barrel will help you too.

Just don't take it fishing with you. Game wardens aren't known for their sense of humor with these things....right Biggsauce!!!?
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Unread postAuthor: biggsauce » Mon Sep 22, 2008 1:13 am

Oh so right you are Starman. I forgot to mention that. Don't even think of fish while you're holding that thing. They will probably write you a ticket for that too...

My court date is October first, and its looking like a $635.15 fine. Is the .15 really necessary?

Be smart with it
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Unread postAuthor: starman » Mon Sep 22, 2008 3:02 am

biggsauce wrote:...looking like a $635.15 fine.


:shock: Holy Crap :shock: That's almost worth getting a lawyer over. Utterly preposterous.... :?
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Unread postAuthor: biggsauce » Mon Sep 22, 2008 9:26 am

It initially was $1135.15 for "taking fish illegally"

I was then re-issued a ticket (becuase I didnt actually have any fish in the boat) for "attempting to take fish illegally"
wich is a bit cheaper.
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