spud launcher #1

[cody2]

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.

[pyromaniac]

can you get more pics and some specs.

it looks pretty good.

[super spuder]

looks kool. what does it run on? and can we have some specs

[mega_swordman]

Very nice. What are you planning to shoot? Some more specs would be nice.

[ArticWolf]

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

[Insomniac]

I think there is a wye there as well, they arn't pressure rated (I think)

[cody2]

It fires propane but doesn't distribute well

[cody2]

its not abs its black painted and is going to have barrel flames

[frankrede]

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?

[ArticWolf]

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.

[frankrede]

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.

[cody2]

Im pretty sure its presure rated

[ArticWolf]

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

[cody2]

this is going to be a advanced combustion

[Specialist]

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.