It will work, a similar design is being used in paintball right now.

It may not be listed on this site, but check this site out, paintballs a little bit ahead of us in valve design.

http://www.zdspb.com/tech/misc/animations.html

your design is essentially a really simple spool valve.

How come every time I bring up my paintball rifle project there’s always someone who has to make the argument that you can’t rifle a paintball… Sorry for my somewhat offensive response it was late and i was deranged from being up for so long, so alot of my "facts" are just copy paste shit from pain...

Mobile Chernobyl, I’ve read those reviews and found one thing in common: they were all based off paintball gun platforms, as such they had short barrels (12-14 inches) and accelerated the paintball far to fast, never mined the fact that the naked paintball couldn’t have engaged the rifling to well,...

I'm not sure if paintballs have changed, but last time i checked they were round gel capsules with some sort of oil (fish oil sometimes) and die in the center. That presents a liquid filled capsul. There have been endless discussions on rifling in paintball, and countless tests have proven it to be ...

In the diagram on the first page, whats to stop the air from only taking the path of least resistance - the pilot exhuast. It looks like it could easily just all drain out the back unless you put a third seal in the middle that engages at firing point on the rear spool body. spool valves can be fun,...

haha wow the general populous of this forum is quite young. I made my first cannon at 13, and im 20 now. so no, hiding is no longer an issue. My first cannon was a combustion and being an ancy youngin i just wanted to shoot it, so i gave it 12 hrs to cure and started shooting. Luckily i understood t...

That FPS sounds a little high, not doubting you, but are those actual Chrony readings, or GGDT outputs? if thats actual Chrony readings im impressed! I made a design somewhat similar to yours thats putting marbles through steel 55 gallon drums with accuracy (shot a marble through an existing marbles...

u r correct

noname - no problem, the air ram is pictured below. [albumimg]312[/albumimg] Unlike the spring driven ram, an air ram will expand to no limits as long as there is pressure, hmm kinda sounds like a projectile in a spud gun lol. simple idea, and it allows me to make a much larger ammo chamber than mr....

well, it took me all of about 12 hours from inspiration to decimation.... The challenge: I liked Mr. Plow's inline vortex design ALOT! its pretty genious, and even if he wasnt the orignal creator of it, it was still made so nicely that it inspired me to make one, somehow, someway. The whole inlinene...

the chambers fine, i've also seen people fill it throught the pneumatic actuation port on the qev itself.

Bluetooth - Yea i definately agree that the pvc ballistics design is worn out and it got poor flow with all the bends and it all leads up to a weak 1" sprinkler valve. I'm sure it still packs a punch, but i think my design looks a little cooler, or abstract is it? lol. well heres the pics of both gu...

jrrdw - It takes about 2-4 hours from start to end. take in mind that includes cutting the pipe, cleaning, aligning and whatnot. i just use a mapp gas set up that cost about $20 at home depot, but propane would work just as well, just not as fast. triggahappy - yea they arent cheap, it cost me about...

Spudstuf - Hmm, i have noticed that, ill take note of that in my design im building tonight (nearly identical, but barrel will be big enough to launch a 12gr CO2 powerlet (sweet). This gun will retain the same dimentions, but ill have a 1.5' section of 2" copper in place of the 1.25" copper in the f...

Well i got bored waiting for the parts for my 3" porting 3000 cu in mega cannon, so i decided to build a copper sniper rifle. my first venture into copper mind you... [albumimg]276[/albumimg] Chamber: appx 3+ feet of 1.25 inch copper pipe (i say 3+ cause of all the FRIGGEN EXPENSIVE copper fittings....