9 Foot Long Pneumatic Cannon
This is my second pneumatic cannon. It has a ball valve trigger system. The expansion chamber is 4' long and 4'' in diameter. I fill it with a schraeder valve. There are two inter changeable barrels, they are both 4' long and one is 2'' in diameter and the other is 1.5''. I typically shoot at 65 psi but my cannon is capable of higher pressures
- Attachments
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- Hanging up
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- Ready for battle!!!
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- Up against the tree
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- Profile of 3/4'' plywood
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- Rear view of 3/4" plywood after a hit from a duct tape wrapped golf ball at 65 psi
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- Frontal view of 3/4" plywood after a hit from a duct tape wrapped golf ball at 65 psi
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- Laying down
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- At 65 psi a duct tape wrapped golfball went through two layers of 1/2 inch plywood! (side view)
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- At 65 psi a duct tape wrapped golfball went through two layers of 1/2 inch plywood! (front view)
Last edited by msg72391 on Wed Apr 19, 2006 5:22 pm, edited 1 time in total.
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zvallance1
- Private 4
- Posts: 94
- Joined: Wed Dec 21, 2005 11:34 pm
well nice gun! love the black paint =)
couple things though:
1. What's the purpose of the Wye you have near the valve...do you use it as a shoulder rest or something? or is it there "just cause"
2. You might want to fashion a spring or small pnuematic ram to your ball valve, to lower the opening time, or better yet go with a sprinkler valve!.
3. doesnt look like you have the best spot to shoot from, from your backyard (or where ever this picture was taken) so be careful where you point that beast!
4.you said you're using golf balls, as ammo...you might want to check out pimpmann's signature, or some hardware store and pick up some SDR-21 1.5" pvc..its a perfect fit for golf balls.
On that note, with the right barrel, and the sprinkler valve, i can shoot golf balls through a 2x4 easily with one of my cannons thats not too much larger than yours 8) (just thought i'd give an example of how great a couple little upgrades can make a cannon!)
anyways, great cannon, and happy spudding!
couple things though:
1. What's the purpose of the Wye you have near the valve...do you use it as a shoulder rest or something? or is it there "just cause"
2. You might want to fashion a spring or small pnuematic ram to your ball valve, to lower the opening time, or better yet go with a sprinkler valve!.
3. doesnt look like you have the best spot to shoot from, from your backyard (or where ever this picture was taken) so be careful where you point that beast!
4.you said you're using golf balls, as ammo...you might want to check out pimpmann's signature, or some hardware store and pick up some SDR-21 1.5" pvc..its a perfect fit for golf balls.
On that note, with the right barrel, and the sprinkler valve, i can shoot golf balls through a 2x4 easily with one of my cannons thats not too much larger than yours 8) (just thought i'd give an example of how great a couple little upgrades can make a cannon!)
anyways, great cannon, and happy spudding!
Last edited by zvallance1 on Tue Apr 18, 2006 6:43 pm, edited 1 time in total.
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saladtossser
- Sergeant 3
- Posts: 1234
- Joined: Sat Mar 26, 2005 10:40 am
- Location: Toronto
- Contact:
BOOYA
simple and powerful, me like, me like
simple and powerful, me like, me like
"whoa... I thought pimpmann was black..."-pyromanic13
Nice Gun.
Your chamber is a overkill, but I guess it doesnt hurt anything. Check your local pipe stores for SDR 21 and if you cannot get it, you can buy from me. GB's are defintly the way to go for power, by the way nice destruction pic. By covering the dimples your loosing performance. You can get 400% better performance with a un-wrapped ball. Proably even more considering the duct tape creates drag by its self. By all means a duct tape wrapped GB is more destructive then a potato.
Your chamber is a overkill, but I guess it doesnt hurt anything. Check your local pipe stores for SDR 21 and if you cannot get it, you can buy from me. GB's are defintly the way to go for power, by the way nice destruction pic. By covering the dimples your loosing performance. You can get 400% better performance with a un-wrapped ball. Proably even more considering the duct tape creates drag by its self. By all means a duct tape wrapped GB is more destructive then a potato.
istnt that wye nsf-dwv? just wondering, cause it looks it.
in the upcoming presidential election, there will be several candidates who will be running, one of whom is Hillary Clinton. Now WAIT A SECOND!!! I though there was some sort of rule that prevented someone from serving more than two terms in office. Vote Against Hillary: Presidential Elections 08
Absolutely Massive! Your probably gonna scare the crap out of your neighbors. I applaud you.
P.S. How much does that thing way?
P.S. How much does that thing way?
"There isn't a problem in the world that can't be solved by the proper application of explosives"
I would say it wieghs in anywhere from 20-30, but that is just a guess. It is not to hard to handle considering that you shoulder it.
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GhostMonkey
- Private 2
- Posts: 26
- Joined: Fri Feb 10, 2006 11:48 pm
that's huge ... like a freaking basooka or something ...
What is nsf-dwv?
it means it is not pressure rated unlike nsf-pw which is, my personal tests show that some dwv parts are safe up to 80 psi but most people reccomend 50-60 as do i if you havent pressure tested them
in the upcoming presidential election, there will be several candidates who will be running, one of whom is Hillary Clinton. Now WAIT A SECOND!!! I though there was some sort of rule that prevented someone from serving more than two terms in office. Vote Against Hillary: Presidential Elections 08
i have used it up to 65 psi multiple times with no problems, should that be my maximum, or would it be safe to hit 75 psi? Also i do not know if it is nsf-dwv, if there is a way to check i would like to know.
Well I know it goes up to 65 psi so if nsw-dwv cannot go that high i guess i am not using nsw-dwv.
i have taken nsf-dwv to 80 psi without issues but its isnt rated for anything so it isnt gaurentueed. it should have pvcI or nsf-dwv if it is infact. otherwise is would have nsf-pw printed on it.
in the upcoming presidential election, there will be several candidates who will be running, one of whom is Hillary Clinton. Now WAIT A SECOND!!! I though there was some sort of rule that prevented someone from serving more than two terms in office. Vote Against Hillary: Presidential Elections 08