SpudFiles

What size pipe do you need to shoot paintballs? I want to make a combustion type cannon that shoots paintballs so what size chambers and size pipe would i need? Sorry for the noob questions

(Topic renamed by Pete Zaria, please don't post in all caps )

3/4 sch 80
3/4 cpvc
1/2 sdr 11

u obviously didnt search...

If it were up to me, I would just use a 1.5" or 2" piep and scatter shoot them. Oh, and don't shoot them at people.

spudthug wrote:u obviously didnt search...

Cool it youngin' new community members are a good thing. We don't need to make 'em feel stupid or scare them away. He already apologized besides, that's not the least valid question I've heard recently...

spudthug wrote:u blocked off the stock from the barrel right??and teh tee that the scope is on??

lol

Good luck on your cannon djbizz. Be careful not to cook/ ignite your paintballs.
Since you seem to be new an important thing to watch out for is if your pipe and fittings have DWV written on them or NSF-pw.
DWV is for drain applications, and is not pressure rated.
NSF-pw is pressure rated, and is safer.
You can get away with using DWV on a combustion cannon, but always keep safety in mind.

TurboSuper wrote:If it were up to me, I would just use a 1.5" or 2" piep and scatter shoot them. Oh, and don't shoot them at people.

Thanks, I'm already in the process of building one with the 2" pipe thanks to rna_duelers he gave me a pretty cool specs on how to build a loud cannon. But i had so much fun building that one i couldn't wait to build a mini one that shoots paintballs.

spudthug wrote: 3/4 sch 80
3/4 cpvc
1/2 sdr 11

u obviously didnt search...

Ok spudthug,

Now your gonna have to tell me what those are. At this point I only know ABS and PVC.

3/4 sch 80 = Is this some kind of pipe?
3/4 cpvc = What's the c? I only know the pvc part
1/2 sdr 11 = What's sdr?

Pictures or sketch would be helpful. Thanks...

:help: :help: :help: :help: :help: :help: :help: :help:

Jumpin Jehosaphat wrote:

spudthug wrote:u obviously didnt search...

Cool it youngin' new community members are a good thing. We don't need to make 'em feel stupid or scare them away. He already apologized besides, that's not the least valid question I've heard recently...

spudthug wrote:u blocked off the stock from the barrel right??and teh tee that the scope is on??

lol

Good luck on your cannon djbizz. Be careful not to cook/ ignite your paintballs.
Since you seem to be new an important thing to watch out for is if your pipe and fittings have DWV written on them or NSF-pw.
DWV is for drain applications, and is not pressure rated.
NSF-pw is pressure rated, and is safer.
You can get away with using DWV on a combustion cannon, but always keep safety in mind.

Thanks Jumpin Jehosaphat! Can i make it out of a pvc pipe though?

SCH80 stands for schedule 80 and is PVC pipe
CPVC is Chlorinated Polyvinyl Chloride pipe
SDR is a High-density polyethylene pipe

HTH,

Michael

Actually, SDR-13.5 (yes, SDR-13.5, not SDR-11) is a size of PVC pipe. Its just like SCH 40, SCH 80, etc. This type of pipe is rated to 315 PSI, whether you get it in 1/2" size or any other size as well (I don't actually think any other size of SDR-13.5 exists though). SDR stands for Standard Dimension Ratio.

SDR-11 is HDPE pipe....you can't get SDR-11 made out of PVC hence your comment:

"yes, SDR-13.5, not SDR-11"

Michael

SDR is a High-density polyethylene pipe

sdr is a wall thickness not a kind of pipe

SDR-11 is HDPE pipe....you can't get SDR-11 made out of PVC hence your comment:

sdr again is a wall thickness...and yes u can get sdr 11 just not in half inch...i ment sdr 13.5....i made a mistake...

u may want to get better facts before u make a fool of yourself

forgot to add that u cant get other sizes of sdr to...they make sch 40-160 maybe higher but below sch 40 is sdr...sch and sdr are both thickness ratings...

oh and btw cpvc is basically water pipe and is rated to 100 psi..it is a bit wobly so u might need to sleeve it..

cpvc is sdr 11 i think...

Gepard: You are correct that SDR-11 is HDPE pipe... though, I really think spudthug made a mistake is saying 11 instead of 13.5... I could be wrong though.

heh rmich i bet ur gonna have an edit when im done posting this... read my above psot..

Well I looked on Google before posting and I couldn't find *any* SDR-11 pipe that was PVC only HDPE

The second post I didn't say SDR was a material I did say that SDR-11 was made out of HDPE and I've yet to find evidence to the contrary.....

Michael

16mm inner diameter metal pipe mate. Now just get her finished.