Gort's Blue Flame III (Don't forget to watch the video!)

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.
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frankrede
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Fri May 11, 2007 9:58 pm

FeLeX wrote:Great cannon man!!!

How much did that 3 way valve cost you? Where did you get it from? Would a store like HomeDepot carry them or do I need to get them online?
Do you have some kind of pop off valve on it so that it stops puting propane in the pipe at the right PSI?
If not, then do you have some kind of pressure guage and you wait till right PSI and inject the propane?

Thanks man. Again, very clean and nice gun. Great idea on the 3 way valve.
Home depot wouldn't have a valve like that.
I would check on mcmaster.com for a valve like that
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rebalgray
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Sat May 12, 2007 9:07 am

McMasters does have the three way valve. Around $19.00

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FeLeX
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Sat May 12, 2007 5:44 pm

Thanks guys! I think I am going to do the same type of meter pipe. The charging looks so much faster then on regular.
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Punstype
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Thu May 24, 2007 1:11 am

hey gort

ive tried looking on mcmaster for the three way valve and couldnt find it could you give us more info?
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sgort87
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Thu May 24, 2007 8:02 am

They are difficult to find. It's part number: 6464K12
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Spuddin
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Thu May 24, 2007 8:23 am

that is a great looking gun man, im sure u put alot of thought and work into it. very sweet! if this was youtube i would give u 5 stars lol
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Major Woody
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Mon Oct 08, 2007 7:00 pm

Gort,
Beautiful work, nice attention to detail. Way to innovate.

Couple of newb questions for you--I did a forum search but can't seem to find the answers.

First--the Latke style venting...is there a thread somewhere you could point me to which gives a bit more detail on how the plug thing is constructed? I can see a rubber stopper looking thing with a shoulder to it, but what exactly is that rubber piece anyway?

The Lowes near us has bronze bushings in their hardware section. I would think a half inch thick bronze bushing on the metal bracket, used in conjunction with a smooth-shafted hex bolt, would give you the smooth action that the other guys are talking about, without you needing to weld anything up or add a secondary bracket.

Second--the street elbows. My plumbing supply place doesn't have them. Wondering if you could point me to a source?
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wangpushups
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Tue Oct 09, 2007 3:28 am

This gun kicks... I'm not a huge fan of the flames but you did a nice job on that and the details. How many cannons have you made?
xequa
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Sat Nov 17, 2007 12:22 pm

Simply unreal, Gort. I think I need to make one of those.
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The Kid
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Mon Nov 19, 2007 1:26 am

xegua this topic is old
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sgort87
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Mon Nov 19, 2007 1:33 am

I dunno, I think it's safe to call a topic like this one "timeless". :wink: :D
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The Kid
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Mon Nov 19, 2007 1:46 am

sgort87 wrote:I dunno, I think it's safe to call a topic like this one "timeless". :wink: :D
for now its "timeless" but one day people are gonna forget all about it.

*john jaratts wolf creek laugh*

Click link to hear laugh

lrdgz
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Thu Oct 02, 2008 11:53 pm

Well...., and where do I find this single touch meter, because the next one will be inspired by your job
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Fri Oct 03, 2008 9:49 am

He said the valve was from McMaster, part number 6464K12. It currently goes for $18. I also found a similar one at DeeTag. For the rest of the meter, you would need a propane torch, a pressure regulator, and some compression hose fittings, which can all be found at Home Depot.
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