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"In the world of spuds today"

A place to ask general spud cannon related questions.
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Unread postAuthor: Brian the brain » Tue Feb 21, 2012 4:27 pm

This was a BTB inspired venture to further my work on another BTB inspired venture


Damned BTB going around inspiring people!
:D
Watcha making?
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Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: Fnord » Tue Feb 21, 2012 7:13 pm

^I needed some thick aluminum for the chamber ends on my pumper :wink:

It's going to get cut up, sanded and soldered into a nice clean assembly.
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Unread postAuthor: MrCrowley » Tue Feb 21, 2012 7:24 pm

Some of you would have already seen this but I mentioned earlier in this thread I would upload a video of the barrel incident:
[youtube]http://www.youtube.com/watch?v=aZgWewJAhtk[/youtube]
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Unread postAuthor: Gun Freak » Tue Feb 21, 2012 8:51 pm

Check out what I got for free, chaps :D
Image
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Output threads are crapped up (it fell out of a truck). Anyone know how the fill works?
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Unread postAuthor: warhead052 » Tue Feb 21, 2012 9:32 pm

Damn! Nice! I wish I could get that sort of stuff free. Take it to your local scuba store (probably tons of them in your area...) and ask them how much it would be for a refill.
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Unread postAuthor: Gun Freak » Tue Feb 21, 2012 10:01 pm

I don't think they'd refill it, it looks like hell :D

Plus I think you need some sort of certificate to get it refilled, like it has to pass inspections and whatnot. The sticker on it says it was approved in June of 2011, but I bet that was pre-falling-out-of-a-truck :D
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Unread postAuthor: Lockednloaded » Tue Feb 21, 2012 10:09 pm

If I were you, I'd at least swing by a scuba store and ask them about it. Like how much repairs could cost and if it's salvageable.
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Unread postAuthor: 9mmguy » Tue Feb 21, 2012 10:17 pm

U should be OK to get it filled I got a vary old tank from a friend got it filled at air as in Tampa with oxigen just sand it by hand and spray paint it to look better
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Unread postAuthor: Gun Freak » Tue Feb 21, 2012 10:30 pm

Appreciate the input, guys. There's a dive shop about a mile and a half away from me, maybe I'll swing by there and ask them about it. I have a buddy who is a professional diver so he might be able to fill it for me, or at least tell me if it's usable. Anyone know how much a fill is? I remember Tech saying something a while back about high pressure oxygen being dangerous as a propellant.
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Unread postAuthor: MrCrowley » Tue Feb 21, 2012 10:33 pm

Yeah, I would stay clear of filling it with oxygen. Not sure if you're able/allowed to get it filled with CO2, nitrogen, air or helium but they would be much better options than oxygen by a long shot.
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Unread postAuthor: Gun Freak » Tue Feb 21, 2012 10:39 pm

Yeah that's what I'm thinking. If I go to a dive shop, I don't think I could get a CO2 fill :tongue3:
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Unread postAuthor: warhead052 » Tue Feb 21, 2012 11:14 pm

Gun Freak, at my local dive shop its $10 for 4,000 psi in the huge scuba tank. I asked if it was alright if I brought a big welding cylinder in, and the woman said yeah but I would have to haul it to the compressor and back out again. But for $10 that's a hell of alot of air.
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Unread postAuthor: Crna Legija » Wed Feb 22, 2012 12:57 am

they don't fill it with oxygen its air or nitrox
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Unread postAuthor: MrCrowley » Wed Feb 22, 2012 4:44 am

Dunno what to use this for, but it was a dollar so I bought it.

Image
Humphrey TAC Valve 3P is a 3-way normally closed, spring return valve. Exhaust is not threaded.

Port Size: 10-32 NPT inch
Type: 3-way NC
Action Type: Push button
Body Thread: 1/8 NPT
Spec sheet at http://airinc.tho
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Unread postAuthor: Technician1002 » Wed Feb 22, 2012 5:30 am

Nice find. Fit it on a sprinkler valve or breech of a piston cannon. Better than a blowgun and cheaper too.

Note on the tank above, a place that inspects and certifies cylinders should be able to replace the valve for you. It should be about $100 to replace it and complete the hydrostatic test.
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