Search found 747 matches
- Sat Jan 17, 2009 10:53 am
- Forum: Pneumatic Cannons
- Topic: How To: Know When Your Soda Bottle Chamber Is About To Blow
- Replies: 50
- Views: 8257
- Fri Jan 16, 2009 10:49 am
- Forum: General How-To & Discussion
- Topic: Any Regulars on here from NC, USA???
- Replies: 7
- Views: 1624
- Thu Jan 15, 2009 4:58 pm
- Forum: Pneumatic Cannons
- Topic: Doing some testing, Soon.... updated 02-10-2009..Damage pics
- Replies: 31
- Views: 4557
I think you'll see that with proper planning, a couple of hours is all that are needed to build a gun properly... Using standard parts, perhaps, but sadly I'm of the epoxy mindset, a versatile material but it turns hours of building time into days of waiting :roll: I shave a lot of time in the pist...
- Thu Jan 15, 2009 1:39 pm
- Forum: Pneumatic Cannons
- Topic: Doing some testing, Soon.... updated 02-10-2009..Damage pics
- Replies: 31
- Views: 4557
- Thu Jan 15, 2009 11:06 am
- Forum: Pneumatic Cannons
- Topic: Doing some testing, Soon.... updated 02-10-2009..Damage pics
- Replies: 31
- Views: 4557
Doing some testing, Soon.... updated 02-10-2009..Damage pics
Alright Guys, I'm picking up my materiels for my GB gun this afternoon and plan on having it done by tomorow, and since you guy's seem to be all about some pics/video/damage shots(who isn't?), I've got a video camera lined up for sunday... Specs on the gun: 60" sch80 with sdr21 inner barrel, 36" cha...
- Wed Jan 14, 2009 5:29 pm
- Forum: General How-To & Discussion
- Topic: Any Regulars on here from NC, USA???
- Replies: 7
- Views: 1624
Any Regulars on here from NC, USA???
Just curious, I'd be interested in getting together with other spudders to, as my wife says "see how far you can shoot random stuff"... It'd be cool if we could get several together and do some video's and such(if someone can bring a vidcam)... I know I've piqued the interest of a few on here with m...
- Sat Jan 10, 2009 2:24 pm
- Forum: Pneumatic Cannons
- Topic: large volume pilot valve....CHEAP!!!
- Replies: 19
- Views: 4315
And my question is how much does that affect acceleration??? Well, that would be a function of the speed of the projectile. In a normal barrel, as the projectile speeds up, the air in front of the projectile compresses more and more until the point where the projectile is nearing the speed of sound...
- Sat Jan 10, 2009 1:12 pm
- Forum: Pneumatic Cannons
- Topic: large volume pilot valve....CHEAP!!!
- Replies: 19
- Views: 4315
You should really get a video up of the operation in progress. I've been here 3 years and never seen anything like this yet. Very interesting concept. I actually got the idea from my grade school son's science fair, if you google ping-pong cannon, you'll get the idea... it's a science project where...
- Sat Jan 10, 2009 10:42 am
- Forum: Pneumatic Cannons
- Topic: large volume pilot valve....CHEAP!!!
- Replies: 19
- Views: 4315
Once the projectile reaches the vacuum port, would it not hinder the projectile at that point in travel? Being as how the vacuum port is off the side of the barrel, instead of straight out of the muzzle. the vacuum port is 3/64" located .5" from the exit end of the barrel, and I close the valve at ...
- Sat Jan 10, 2009 9:29 am
- Forum: Pneumatic Cannons
- Topic: large volume pilot valve....CHEAP!!!
- Replies: 19
- Views: 4315
I'm just trying to figure out WTF "vacuum assist" is. the gun referenced is a 72"x1.5" barrel attached by a 1.5" high pressure butterfly valve to a 5gal 200 psi rated steel tank.... when firing with vacuum assist, I use a "burst disc"(actually it's the bottom from a plastic cup with sealing grease ...
- Fri Jan 09, 2009 3:31 pm
- Forum: Pneumatic Cannons
- Topic: large volume pilot valve....CHEAP!!!
- Replies: 19
- Views: 4315
Re: large volume pilot valve....CHEAP!!!
NO piston honk on my gun... So? In many cases "honking" has nothing to do with the performance of the gun. The "honk" only occurs after the ammo has left the barrel. I was refering to the fact that it doesn't honk even when I have active supply still hooked up... before I was using a blowgun for th...
- Fri Jan 09, 2009 1:41 pm
- Forum: Pneumatic Cannons
- Topic: large volume pilot valve....CHEAP!!!
- Replies: 19
- Views: 4315
large volume pilot valve....CHEAP!!!
I been watching this forum for a few weeks, just registered today... What I'm using on my 1" coaxial gun is a high quality garden hose sprayer slightly modded since I'm not worried about spray patterns, it's rated at 150psi and I mean to tell you there is NO piston honk on my gun... now to use a spr...