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10" by 5' steel pipe.... What to do, what to do

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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10" by 5' steel pipe.... What to do, what to do

Unread postAuthor: brogdenlaxmiddie » Fri Jan 25, 2008 5:23 pm

Hey, as I said, my dad brought me home a big 10" by 5' piece of steel(?0 pipe.... And i have no idea what in the hell to do with it. BTW, its about a quarter of an inch thick. Any ideas for a project that doesnt cost as much as a car? LOL :lol:
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Unread postAuthor: DYI » Fri Jan 25, 2008 5:42 pm

Weld some 1" plates on both ends of it, attach a 4" union to one, rig up a few spark gaps, and make the monster hybrid from hell. :twisted:
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Unread postAuthor: daberno123 » Fri Jan 25, 2008 5:46 pm

I vote for a hybrid or a super high pressure pneumatic.

Why did your dad just randomly buy you a huge piece of pipe?
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Unread postAuthor: brogdenlaxmiddie » Fri Jan 25, 2008 5:47 pm

undortunatly, i don't have a welding machine.... and I don't iknow how much it would cost to get all steel stuff.... IE barrel..... but I was thinkin to put it under my house and then when i have a car and mo' money, then build the ultimate one :D
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Unread postAuthor: daberno123 » Fri Jan 25, 2008 5:52 pm

Yeah it would probably be pretty expensive for fittings. You could always hire a welder at your local machine shop. Perhaps your already willing dad would chip in a few bucks to help?
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Unread postAuthor: brogdenlaxmiddie » Fri Jan 25, 2008 5:53 pm

nah.... unfortunatly he somewhat condones spudding... oh well, too damn bad for him..... but uhhh
yeah. I think that I should build my other cannons and stuff first... then maybe by that time i'll have the money :D
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Unread postAuthor: brogdenlaxmiddie » Fri Jan 25, 2008 5:54 pm

he didn't buy it... he works at Duke University as a chairman, and had the truck with him and recently they had been doing some highpressure water mains and they were throwing away the left over pipe.... and my dad was like :O THOMASS!!!!!
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Unread postAuthor: e1337 » Fri Jan 25, 2008 5:55 pm

I have to agree with DYI
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Unread postAuthor: maxfreke88 » Fri Jan 25, 2008 6:13 pm

i would have to go with a high pressure cannon (be hard to get a right Fuel to air mix with hairspray) or use metered LP with a 10 gal LP tank!? :twisted:

The trouble is getting the right reducers :evil:
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Unread postAuthor: Velocity » Fri Jan 25, 2008 6:16 pm

Definitely invest in some welding as DYI suggests; without some type of welding, this pipe is unfortunately worthless. Sure, you could build a big combustion without welding... but thats kinda bland compared to a 10" hybrid or pneumatic.
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Unread postAuthor: DYI » Fri Jan 25, 2008 7:01 pm

Brog, welding is dirt cheap in most cases. I doubt that the whole job of welding the plates on and a union on the front would cost more than $100 at a welding shop, especially if you tell them what it's for. I got 18" of 2.5" diameter hardened steel round bar for $4 dollars for the valve casing on my BB gun (which is currently delayed).

And how is it unfortunate that your dad condones spudding? Isn't that a good thing for you?
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Unread postAuthor: Ragnarok » Fri Jan 25, 2008 7:07 pm

DYI wrote:And how is it unfortunate that your dad condones spudding?

A lot of people get the words "condones" and "vetoes" mixed up for reasons I don't particularly understand - but I suppose the word "condone" does sound a bit negative.
I'm used to the confusion, and I assumed he meant "vetoes" from the context.
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Does that thing kinda look like a big cat to you?
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Re: 10" by 5' steel pipe.... What to do, what to do

Unread postAuthor: bigbob12345 » Fri Jan 25, 2008 7:15 pm

brogdenlaxmiddie wrote:Hey, as I said, my dad brought me home a big 10" by 5' piece of steel(?0 pipe.... And i have no idea what in the hell to do with it. BTW, its about a quarter of an inch thick. Any ideas for a project that doesnt cost as much as a car? LOL :lol:



Wow you are very lucky to get your hands on steel pipe that big
Im actually kind of jealous :angry6: Well whatever you do its going to cost a lot of money I would go the high pressure pnuematic rought but the hybrid one works too.
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Unread postAuthor: Hotwired » Fri Jan 25, 2008 7:22 pm

DYI wrote:I got 18" of 2.5" diameter hardened steel round bar for $4 dollars for the valve casing on my BB gun


You lucky bugger :o

If I try getting silver steel round here in 2.5" it would be about £50 for that length.
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Unread postAuthor: jrrdw » Fri Jan 25, 2008 7:22 pm

When I read the size of this pipe, I can only think of one thing, MORTER!!!
Bury it in the ground half way, find a ball that fits a little loose, squirt flammable liquid, (zippo lighter fluid) all over the inside of the pipe, stand back and flick a match in. Don't be in the way of the ball or what ever you use for ammo. These kind of cannons/morters are great fun!
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