CO

well, I would say he has his work cut out for him and I too would say you're beter doing something else on your own before this. As piney explaines, CO2 is likely more dangerous a thing than you want to be messing with. this gun is plunger-based and doesn't even have a valve so as so many others have expressed you will have to totally re-build the gun. There's hardly anything you can use for an air gun.

On another note, your comment about making it single-barreled seems to go against the whole 6-barrel rotating-reload system so you should understand that in your first post, you are too vague and provide hardly enough specifics to have anything worth responding to, Furthermore it seems that you're taking a perfectly fine gun, taking out all of its useful features, and replacing them with a mechanism which hasn't been actively researched... UNTIL THE NEW THREAD BY yamo1231...for previously stated reasons... and then you're asking for advice on how you could do this. Talk to yamo1231, perhaps he'll do a writeup and that will help you.
advice? See if you can't undo whatever you've done so far and go dis-assemble a friend's paintball marker to understand its workings. CO2 CAN be regulated but it requires a stronger valve, an expensive regulator, a stronger gun, and the price of such an air system will likely exceed its worth.
good luck,
-co

No piney, I know what you're thinking and I have way better things to do than post for the sake of posting. I'd like to do something more with my life. I'll let it slide but for the reccord, it was light-hearted and just... I dunno, something that caught my eye as a possible source for kicks... perhaps I have a bad sense of humor... whatever. I liked the thread you refrenced... true commedy is hard to find but you're right, the dude's idea in all its vague uncertainty shrouded in a false sense of knowing a great truth which can be summarized as HPA = GOOD is freakin' hilarious. I somehow have avoided these threads over the past month.
By the Way, what's the max PSI of a 3" PVC tank? I've read of some debate over how this changes for different types of PVC (furniture vs piping PVC) but assuming it's simply PVC ground piping... does anyone know?
On another topic relative to the mechanical operation of the gun, what would you all say to this verbal explanation of a firing mechanism... feasible? crappy? better idea? could be improved upon with ___x___?
In its rest position, the breech lies open and a hollow bolt lies farther towards the back of the gun. The valve opens and air is allowed into the back of the bolt sending it shooting towards the front of the gun. The bolt's movement primes the firing mechanism by scooping up the next shell (with dart inside) and forcing it forward against a slight ramp headed towards an o-ring which rests at the rear of the barrel/front of the breech. As the bolt accelerates inside its air-tight sheath, the spring which binds the rear of the bolt to the sheath is being streched. Finally, the bolt stops abruptly as the front of the shell makes contact with the o-ring and is pressed into a tight fit. Simultaneously, the bolt reaches a point where a perhaps 1/2" long (measured parallel to the barrell) groove in the sheath allows air out from the rear of the bolt and into another area previously locked off between the rear of the bolt, which contains the compressed air, and a secondary chamber just ahead of this. The secondary chamber is just as wide as the bolt and is solidly connected to the bolt, but has a hole in the front to allow the air to escape into the shell. If yo've followed me correctly, the air now gushes out around the sides of the bolt and into the aforementioned groove and then out of a hole, centered, in the front of the bolt. The shell lies tightly clamped between the front of the bolt, and the rear of the barrel. OK??????
That's the exciting part... after that, the valve is closed, the bolt is pulled back by the spring, and as it retracts (closing off access to the groove in the sheath) another shell is pushed up by a spring-fed magazine.
This is the image I drew on my tablet of what I just described



Most of this process came from watching those flash videos on the workings of a gas-powered machine gun and thinking about the plungers and bolt mechanisms for some of boltsniper's guns.
-co
PS I'll work on posting a picture in the next edit for all you visually inclined people like me... And this post is only about 500 words so I'll only post a half of a picture to keep things fair and all.


hey inkjet I wrote this as you were writing your last post, does this mean I get a hat?

In response to elf_avec_gun, yeah that would add weight, but it's a moot point.

Yeah, I guess you have a point, we would work our way around the problem. Just so long as you're willing to play with the handicaps necassary (uneven teams, etc) to make the game fair, I guess it wouldn't be a problem.

On the topic of a clip feeding system, i was thinking it would be interesting to make something like a PC clip, basically a bunch of little barrels mounted on top of each other with some sort of mechanism to kick the barrels up a notch after each shot. Technically, you could have your main barrel, and have the darts just fire into that barrel, and then put foam imbetween each barrel, so that even if the dart was still in the main barrel when the clip advances, the foam imbetween the barrels would seal it off and let the dart continue down the barrel without a loss in air power. It's a bit complicated of a design to just talk about though

I'm affraid that the only way this gun will be built is with ONE barrel... are you suggesting that we put like 10 barrels lined up on the front of the gun and THAT's what we're 'kicking up a notch'? that seems a bit impractical. on a second thought, I don't think that's what you're saying at all... check your post to see if you said 'barrel' when you meant to say 'clip'. Infact, draw something up in paint and post that sucker up here. For now, lets assume the body to be a breech-loading mechanism for kicks. The real issue is how do we get it to open and close the breech using compressed air which, after closing the breech, is used to launch the dart?
-co
PS w00t! double digits in posts... and almost all on this ONE thread! That uber-long one should count as like 10 in and of itself.

screw silence... (that didn't last long)
inkjet, if you're addressing me, I would say you're right but at the same time, there is a stunning natural evolution towards better stats (ROF, range etc). Essentially what I'm saying is, by the same token, would it be unfair/not good/less fun if one guy was sitting around with a longshot while the rest of us had... fireflies or something? no... we would make it work out and manage to have fun anyway... if nothing else, just rotate who has the slightly better gun.
If you're worried about me writing up this exceedingly complicated gun, making it work, booking a flight to wherever your next armageddon is, and pawning with it, I would say...
I know a very nice man who can help with these sorts of worries and things... just go have a chat...
seriously, what a dream vacation that would be... a trip to the nerf war... not the psychiatrist's office.
-co

Alright, that'll be my last peep until the writeup. (save all of us some time)
-co