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Coaxial connector

Posted: Sat Mar 06, 2010 8:12 pm
by sp1ke
what do people use for attaching a coaxial barrel to the end of their chamber? pics would be appriciated

Posted: Sat Mar 06, 2010 8:33 pm
by MrCrowley
http://www.spudfiles.com/forums/search.html

Type in "coaxial"
Select "Pneumatic Cannon Showcase" as the Forum section to search in.

Goodluck and have fun, you will find what you are looking for.

P.S, you didn't really provide us with enough information but it doesn't matter because you can look for yourself.

Re: Coaxial connector

Posted: Sun Mar 07, 2010 1:11 am
by FORE!!!!
sp1ke wrote:what do people use for attaching a coaxial barrel to the end of their chamber? pics would be appriciated
an end cap in the nominated size..

Posted: Sun Mar 07, 2010 9:49 am
by verm
Well no he's just wanting a drilled out reducer isn't he, so the barrel slides straight through.

Posted: Sun Mar 07, 2010 11:02 am
by psycix
I approve Verm's answer.

Use a reducer bushing. If it has a lip, get rid of it. In some cases you can also choose to reverse it.

Posted: Sun Mar 07, 2010 11:45 am
by Gun Freak
It depends on the size of the barrel. If it's half inch and up, then a bushing or a reducer should be fine if you sand/dill the lip out. But if it's undet that, then drill a hole in an endcap or a plug and epoxy the outside of the barrel in it.

Posted: Sun Mar 07, 2010 12:29 pm
by psycix
I would think that an endcap with a hole can handle less pressure than a proper reducer and is less safe.

Posted: Sun Mar 07, 2010 2:22 pm
by sp1ke
thats what i'm wondering. you say " a proper reducer" but what do you use for your proper reducer to connect the barrel? is it just a nipple that you have the barrel epoxied into or is their another way?

Posted: Sun Mar 07, 2010 2:25 pm
by CpTn_lAw
There are "nipples" that come in two different sizes for each end of it. One end is say 1", the other say 1/2". This is a reducer.

Posted: Sun Mar 07, 2010 2:36 pm
by BigGrib
sp1ke wrote:thats what i'm wondering. you say " a proper reducer" but what do you use for your proper reducer to connect the barrel? is it just a nipple that you have the barrel epoxied into or is their another way?

A Proper reducer is just that a proper reducer. If your chamber is 4" in diaameter and your barrel is 2" in diameter, get a reducer from 4" to 2". There will be a ridge in the 2" side to stop the pipe from going all the way through. Get rid of this ridge in whatever way you deem fit. The slide the pipe in as far as you would like it and solvent weld it in place. Ta Daaaah. Co-axial.

Posted: Sun Mar 07, 2010 2:40 pm
by sp1ke
thank you so much. I can finally begin my sniper :D

Posted: Tue Mar 09, 2010 10:07 pm
by FORE!!!!
psycix wrote:I would think that an endcap with a hole can handle less pressure than a proper reducer and is less safe.
depends on what type of material he is using, how he decides to affix it and what pressures he is using, none of witch is listed,,

the brass end cap on my mini handles 400psi so i think that is plenty, and all i used was glue...

http://www.spudfiles.com/forums/brass-p ... 19177.html

Posted: Tue Mar 09, 2010 10:39 pm
by MrCrowley
depends on what type of material he is using, how he decides to affix it and what pressures he is using, none of witch is listed
Assuming the material is either copper, galvanized iron or PVC, I would say a bushing is always safer than a drilled out end cap of the same material assuming both are properly installed with the only difference being the actual fitting.

Not only does a modified bushing give more surface area for the barrel to bond to, i'm sure it would be more structurally sound than an end cap with a hole in it.

Doesn't mean that both wont work, just that one is probably safer than the other.

Posted: Sun Mar 14, 2010 1:59 pm
by sp1ke
ok well i recently went to the store and got these galvanized pieces

12"x3/4" pipe nipple for my chamber

3/4" to 1/2" bell reducer for attaching the barrel with a 1/2" filed out male adapter

a 3/4" coupler and a 3/4" to 1/4" hex bushing to attach to my 1/4" tee with a blowgun and ball valve quick connect fill setup

and a 2 foot piece of 1/2" copper for my barrel

I put it all together but don't really like how the coupling and bell reducer stick up higher than the nipple chamber.

is their any other fittings 3/4" to 1/2" and 3/4" to 1/4" fittings that will not stick up so high so i can attach the coaxial to a stock in a more aesthetically pleasing way?

Posted: Sun Mar 14, 2010 2:01 pm
by Gun Freak
Well you can do it ghetto and wrap it really tighly with masking tape then shove it in a glue it. Epoxy or JB Weld. Thats how I hear some people do it...