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Thorondor (High Pressure Copper Pneumatic) - UPDATE 01/12/11

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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Unread postAuthor: saefroch » Fri Mar 18, 2011 6:55 pm

What's the dead volume on your pump? it sounds rather large from your description...
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Unread postAuthor: mark.f » Sat Mar 19, 2011 1:04 am

Dead volume would only be the volume behind the outlet check valve, which would be the volume enclosed by the copper female adapter, steel bushing, and 1/4" brass tee. Not too terribly large.
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Unread postAuthor: mark.f » Mon May 09, 2011 4:00 pm

Alright JSR, happy now?

Nothing much... just shooting an ammo box with some steel nuts...

[youtube]http://www.youtube.com/watch?v=BYVxiRp9YsM[/youtube]
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Unread postAuthor: jackssmirkingrevenge » Mon May 09, 2011 4:05 pm

mark.f wrote:Alright JSR, happy now?


No, it was a perfectly good ammo box :(

How many nuts was that, 5? I bet 3 would have been fast enough to go clean through...

Oooh ooh, for your next trick:

Image

;)
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Unread postAuthor: mark.f » Mon May 09, 2011 4:13 pm

It was four 1/4"-20 nuts. I actually had another smaller ammo box inside of that one (:lol:) which was dented on the outside.

Guess it's time to pick up some penny nails. :/

I sort of agree with you on the ammo box, but I've still got a smaller dented one. :P
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Unread postAuthor: jackssmirkingrevenge » Mon May 09, 2011 4:17 pm

mark.f wrote:It was four 1/4"-20 nuts. I actually had another smaller ammo box inside of that one (:lol:) which was dented on the outside.


Tinception :roll: :D

That would explain the lack of penetration. Still, impressive damage Image

Guess it's time to pick up some penny nails. :/


Hammering the head flat should give some measure of aerodynamic stability...
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Unread postAuthor: Mattrox » Wed May 11, 2011 4:45 pm

Nice pneumatic.
Where is the Paintball holder/Sabot from?
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Unread postAuthor: jackssmirkingrevenge » Thu May 12, 2011 12:27 am

Mattrox wrote:Where is the Paintball holder/Sabot from?


Look at reloading supply stores
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Unread postAuthor: jhalek90 » Tue May 24, 2011 11:23 am

jackssmirkingrevenge wrote:Oooh ooh, for your next trick:
Image
;)


I bought a pound (1lb) of those flachettes (spelling) online last year.

They sounds like a swarm of bees flying through the air.

I packed 150 of them into a paper cup sabot, and launched then from a 2'' bore coaxial cannon, about half of them flew straight enough to stick into trees at about 50 yards. VERY AWESOME projectile.

keep in mind though, they are steel, and if they hit something they cant penetrate they bounce. i had one stick into my leg after it hit a concrete wall some 40 feet or so away from me.
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jackssmirkingrevenge wrote:I wonder... if you put flammable vapours inside a lady... could you get her to diesel?

POLAND_SPUD wrote:Anything is possible with the proper 3-way valve.
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Unread postAuthor: PimpAssasinG » Thu Jun 16, 2011 10:16 pm

so to how many PSI can your pump do, is this a simple 1 stage pump, because i want to build one becasue i have a shock pump and it takes 400 pumps to go to 400 PSI hahah
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