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spud launcher #1

Built a combustion 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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spud launcher #1

Unread postAuthor: cody2 » Thu Apr 19, 2007 7:35 pm

this is my second cannon It works good but needs a chamber fan. the ratio is out wack and i cant get a good fuel distribution

new ignition needed, work in process.
specs: 4in chamber to 1 1/2 in barrel
makes a sound like a flat stone dropped in water. :D
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spud gun 004.jpg
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Last edited by cody2 on Wed Jul 25, 2007 9:53 pm, edited 5 times in total.

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Unread postAuthor: pyromaniac » Thu Apr 19, 2007 7:39 pm

can you get more pics and some specs.

it looks pretty good.
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Unread postAuthor: super spuder » Thu Apr 19, 2007 8:24 pm

looks kool. what does it run on? and can we have some specs :roll:
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Unread postAuthor: mega_swordman » Fri Apr 20, 2007 5:18 am

Very nice. What are you planning to shoot? Some more specs would be nice.
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Unread postAuthor: ArticWolf » Fri Apr 20, 2007 5:33 am

Cool cannon. Specs would be cool, and is it painted black, or is that ABS. Is that a bell reducer? I don't thing that they are pressure rated but I could be wrong. Oh yea before I forget a barrel support at the end might help support it better when you hold it so you dont break the elbow (just my thoughts though) but it looks like fun :)
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Unread postAuthor: Insomniac » Fri Apr 20, 2007 5:34 am

I think there is a wye there as well, they arn't pressure rated (I think)
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Unread postAuthor: cody2 » Fri Apr 20, 2007 9:10 pm

It fires propane but doesn't distribute well
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Unread postAuthor: cody2 » Fri Apr 20, 2007 9:11 pm

its not abs its black painted and is going to have barrel flames
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Unread postAuthor: frankrede » Fri Apr 20, 2007 11:06 pm

ArticWolf wrote:Cool cannon. Specs would be cool, and is it painted black, or is that ABS. Is that a bell reducer? I don't thing that they are pressure rated but I could be wrong. Oh yea before I forget a barrel support at the end might help support it better when you hold it so you dont break the elbow (just my thoughts though) but it looks like fun :)
Why would he need a pressure rated part?
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Unread postAuthor: ArticWolf » Sat Apr 21, 2007 5:06 am

I just thought that it would be safer using pressure rated parts for a combustion cannon. I just herd that bell reducers are not good to use and are not pressure rated that is all. Pressure rated parts are what I was told to use on my cannon. If I can get some time to put it together which I can probably do today it is all SCH-40 NSF-PW pressure rated pvc except for the barrel which is SCH-40 NSF-WC Pressure rated too.
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Unread postAuthor: frankrede » Sat Apr 21, 2007 10:59 am

On the average combustion(like his) non-pressure rated parts are fine.
Bell reducers are fine to use.

And I believe you have a great misunderstanding of The nsf system.
If it has a pressure rating it will usually have a nsf-pw and a nsf-dwv.
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Unread postAuthor: cody2 » Sat Apr 21, 2007 2:10 pm

Im pretty sure its presure rated
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Unread postAuthor: ArticWolf » Sun Apr 22, 2007 6:03 am

I'm sorry I didn't think that Dwv was pressure rated. I just found Dwv that was pressure rated. My mistake, I guess being that my cannon is a metered propane setup, chamber fan and a stun gun for ignition it makes it a little different sorry for my miss understanding, and Cody2 you did a good job keep it up. I just thought there were no difference between standard combustion and advanced combustion cannons when it comes to what kinda pvc to use
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Unread postAuthor: cody2 » Sun Apr 22, 2007 9:12 am

this is going to be a advanced combustion
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Unread postAuthor: Specialist » Sun Apr 22, 2007 9:24 am

that gun looks awesome. it reminds e of the black widow. i dont think i use pressure rated pvc on my combustions and they shoot fine and far. i could be wrong though. and good job on the cannon. :D
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