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New scuba tank cannon +video

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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New scuba tank cannon +video

Unread postAuthor: AircannonSweden » Wed Mar 14, 2012 12:15 pm

Okey,so i am finally finished with this project,it took about 4 months to complete.iIt was hard to find parts and fittings.The whole cannon is 52 inch long.

EDIT: I have made some adjustings on the cannon,i have put on a bigger valve(3/4 inch). I have put on a 3/4 inch steel pipe insted of the blue long pipe

Parts list:
scuba tank
T-fitting 1/2
Compressor quick chance adapter 1/2
Fitting 3/8 - 1/2
Threaded pipe 1/2 on both ends
Fitting 1/2 - 1/2
Fitting 1/2 - 3/4
Fitting 3/4 - 1/2
Some ordinary pipe as a barrel

Pics:

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All barrels,ammunition and other stuffs!


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"filling station"

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"filling station"

[youtube]http://www.youtube.com/watch?v=Xjzm5tPG_u4[/youtube]

All these dry-shoots was made with about 87 PSI(6 Bars)
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Last edited by AircannonSweden on Sat Jul 14, 2012 1:13 pm, edited 7 times in total.
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Unread postAuthor: jackssmirkingrevenge » Wed Mar 14, 2012 3:02 pm

What pressure are you shooting at?

... and why such a short barrel? and "bad" valve?

I'm sure it's fun, but I'm also confident you can do a lot better?
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Unread postAuthor: AircannonSweden » Wed Mar 14, 2012 3:09 pm

jackssmirkingrevenge wrote:What pressure are you shooting at?

... and why such a short barrel? and "bad" valve?

I'm sure it's fun, but I'm also confident you can do a lot better?


I shoot with 1 bar at the time...i know i can go MUCH higher.I take it easy in the beginning. The valve is not bad ;) and the barrel is short becuse i took it from a thing that you hang clothes on!
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Unread postAuthor: Mr.Tallahassee » Wed Mar 14, 2012 3:17 pm

Custom machined piston valve and much MUCH higher pressure. You could probably shoot a toothpick through a 2x4. :wink:
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Unread postAuthor: AircannonSweden » Wed Mar 14, 2012 3:22 pm

Mr.Tallahassee wrote:Custom machined piston valve and much MUCH higher pressure. You could probably shoot a toothpick through a 2x4. :wink:


Hmmmmm okey... :D sounds interesting ;))))
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Unread postAuthor: velocity3x » Wed Mar 14, 2012 6:47 pm

AircannonSweden wrote:
Mr.Tallahassee wrote:Custom machined piston valve and much MUCH higher pressure. You could probably shoot a toothpick through a 2x4. :wink:


Hmmmmm okey... :D sounds interesting ;))))


I don't know about a toothpick but you can shoot a Golf Ball at mach 1.04!
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Unread postAuthor: Mr.Tallahassee » Wed Mar 14, 2012 9:31 pm

velocity3x wrote:
AircannonSweden wrote:
Mr.Tallahassee wrote:Custom machined piston valve and much MUCH higher pressure. You could probably shoot a toothpick through a 2x4. :wink:


Hmmmmm okey... :D sounds interesting ;))))


I don't know about a toothpick but you can shoot a Golf Ball at mach 1.04!
Tornadoes with 250MPH winds have put straw through barns. In fact, Mythbusters shot straw into a palm tree. The right speed for any given mass can be devastating. I'm sure the right set up could do worse. :lol:
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Unread postAuthor: AircannonSweden » Sat May 12, 2012 11:00 am

I updated a picture today!look at the top!
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Unread postAuthor: AircannonSweden » Fri Jun 08, 2012 2:25 am

I have made some adjustings on the cannon!pics will come a little later
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Unread postAuthor: AircannonSweden » Sat Jun 23, 2012 7:12 am

Okey,i made some miscalculations,i said that i shot with "1 bar","1 bar" is actually 6 bars(87 PSI) ... :D
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Unread postAuthor: AircannonSweden » Tue Jun 26, 2012 11:54 am

I "invented" a new barrel today,now i can shoot golfballs,sorry for a ghetto-barrel-figure-thingy... :D We don't have PVC-pipe in Sweden...

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Unread postAuthor: jackssmirkingrevenge » Tue Jun 26, 2012 10:47 pm

Do you have eBay in Sweden :D

Seriously, get yourself a better valve!

http://www.ebay.com/itm/Pneumatic-QE-04 ... 4166cb71ea

Costs less than a trip to McDonalds, come on :)
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Unread postAuthor: AircannonSweden » Wed Jun 27, 2012 11:38 am

Hehe ;) i are building a QEV-gun right now,I only need a air-tank ;)
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Unread postAuthor: AircannonSweden » Sat Jul 14, 2012 1:14 pm

I added a video today,look @ the top
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Unread postAuthor: mattyzip77 » Sat Jul 14, 2012 2:43 pm

Does the golfball just roll out of the barrel when u release the ball valve?
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