No problem, I never really used to read full post before I became the head moderator of a site, and if you say anything remotely stupid, due to not reading a post while a moderator, people will indefinitely blame something on you :roll: :wink: PS: A blowgun didn't pilot either of my valves correctly...

What are you talking about?

Look at the first post...

I'm using a Sprinkler / 1" Barrel Sealing Tee for the Pilot valve

I originally had a blowgun, but that was a different valve. Many changes have happened since then... Notice the "Gun Update!"

Thank you for the comment

Here's the catalog number of the McMaster 3/4" QEV... 6646K23 Simply type into McMaster search to order... The easiest way to direct flow between two sources would be a 2\3 way valve... I forget what they call them, but they look like a Y tee but with a single ball valve that directs flow... I don't...

Here's another new gun I decided to plop out... :shock: Plopping out a 2" cannon sounds painful :lol: :roll: Here's the gun's specifications. Specifications: Chamber: 2" x 12" Barrel: 3/4" x 12.5" Internal Barrel: 3/4 x 9" Effective Chamber: (2.049" x 9") - (1.050" x 9") About 21.88 in^3 Pictures: 2...

Ya I thought it would end up looking a lot like yours... I didn't plan on 1.5" porting in the beginning, but not having it would be a waste... But now I have so many downsizing threaded bushing on it :P ... 1.5" to 1", 1" to 3/4", and I have a 3/4" to 1/2", but I'm definitely not using a 1/2" barrel...

Ok. I have to say quite a bit has been done with this gone since my last post... From rebuilding small homemade QEV's to get one that works, to using a sprinkler valve, to breaking my pistons multiple times... Gun Update: Typed on front pages, but images posted here... http://img337.imageshack.us/im...

That guns a beauty man! Hope you still have most of it?

Those 3/4" QEV's are pretty nice... I think they cost around $20 here in the US each... well at least from McMaster-Carr

I put together a few more valves\guns this weekend through today... I'll post the images after I make sure they're working... Hopefully with a small test shoot if I can... Supposed to be reaching subzero temperatures soon aren't we though? I have a 2" to 3/4" coaxial (PB\airsoft), now completely fin...

I'll definitely be making an advanced combustion... As of now I have plenty of 3" pipe to make it, but I'm thinking about 4" pipe, or a clear chamber... $30 for 4' of 2" that's only rated for 140 psi or so isn't very interesting though :? I'm probably going to go with a 3" to 2" or 4" to 2" gun Why ...

Gasoline powered spudguns are quite rare, so I don't know that myth will be notable enough to them - but I suppose. Truly, outside of SpudFiles, I believe there are many gasoline powered guns... Most people here on SpudFiles don't build gasoline powered guns, because they know that so many other fu...

I'm planning on making a fancy advanced combustion... A pneumatic airsoft sniper... A paintball trip mine-type grenade... Countless ideas I will most likely carry out... Expect many guns at our shootout :P I'm trashing a few old ABS guns, even though they are perfectly safe, they're just too ugly fo...

I'm just going by the parts I thought he was going to use... I suggested that he not step it down. Even though I think he already had that it mind :o If a tee is 3" ported... That normally means 3" everywhere, except for the piston in some cases... Your post doesn't really make sense though... Why w...

Just be sure not to mess anything up with the chamber... Make it the size you want :P A 4" Slip Tee and a 4" x 3" Slip tee are both $14.78... So I'd definitely go with simply a 4" Elbow, a 4" Slip tee, and a small 4" piece of pipe for connection... Really it's easy to prevent leaks with teflon, but ...

This is probably your cheapest setup with ease of build... http://img135.imageshack.us/img135/84/barrelsealingteenc3.png That's pretty much the same as my gun, and most other barrel sealing tees... Normally I would use a 4" male and a regular 4" (S x S x T) Tee, but 4" Tee (S x S x T) are like tripl...

If you have any power in your arms or any weight in your body you can pump it or even "jump" while pushing down with your arms to at least 80 psi...