Login    Register
User Information
Username:
Password:
We are a free and open
community, all are welcome.
Click here to Register
Sponsored
Who is online

In total there are 54 users online :: 4 registered, 0 hidden and 50 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

Registered users: Bing [Bot], Google [Bot], MSNbot Media, Yahoo [Bot] based on users active over the past 5 minutes

The Team
Administrators
Global Moderators
global_moderators.png CS

copper gun...

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
Sponsored 
  • Author
    Message

copper gun...

Unread postAuthor: ckman » Sat Nov 20, 2010 1:48 pm

yeeoooo. This is my new gun I just built, it took me about 2 or three hours last night, after a home depot run. some specs

barrel: about 2 feet of 1/2 copper piping.
chamber: all together about 3 feet of 1/2 copper piping.
main valve: 3/4 inch qev.
pilot valve: 1/2 bv
fill valve: male quick connect with 1/4 inch ball valve.

This gun is pretty fun, it is able to go all the way through 1/4 ply wood with some nail darts, with the same darts i was able to make the nail head disappear into a tree with the other side sticking out the tree. the tree was about six inches thick. I still need to polish it up, and I am thinking about adding some sights.
I am operating at around 125 psi.
questions, comments, reactions...
  • 0

Attachments
Photo on 2010-11-20 at 10.38 #2.jpg
Photo on 2010-11-20 at 10.38.jpg
Photo on 2010-11-20 at 10.37.jpg
User avatar
ckman
Sergeant Major
Sergeant Major
 
Posts: 181
Joined: Sun Aug 03, 2008 11:00 pm
Reputation: 0

Unread postAuthor: Big-E » Sat Nov 20, 2010 2:01 pm

nice job. It should be able to handle more pressure, assuming the solder joints are strong.

Go with open sights, anything more is okerkill, imo.

Blowgun pilot would be a good addition.

Otherwise, a nice looking effort!

Oh, you need to brace the barrel to the chamber where your right hand is in that 3rd pic, cut a block of wood or something that will fit snugly in there, and strap it into place, it will help with accuracy a bit by bracing the barrel properly.
  • 0

-Speed is a question of money; How fast do you want to go?
User avatar
Big-E
Staff Sergeant
Staff Sergeant
 
Posts: 129
Joined: Tue Feb 24, 2009 3:07 pm
Location: Somewhere in Wisconsin
Reputation: 0

Unread postAuthor: Gun Freak » Sat Nov 20, 2010 2:06 pm

Pilot volume is HUGE.
I would suggest using higher pressure too. Looks fun anyway.
  • 0

OG Anti-Hybrid
One man's trash is a true Spudder's treasure!
Golf Ball Cannon "Superna"M16 BBMGPengunHammer Valve Airsoft SniperHigh Pressure .22 Coax
Holy Shat!
User avatar
Gun Freak
Lieutenant General
Lieutenant General
 
Posts: 4969
Joined: Mon Jan 25, 2010 4:38 pm
Location: Florida
Country: United States (us)
Reputation: 11

Unread postAuthor: ckman » Sat Nov 20, 2010 2:25 pm

alright... will do with the barrel brace. I know the pilot volume is enormous. I'm thinking about taking off the bv and piloting with a 1/4 qev blowgun setup.
  • 0

User avatar
ckman
Sergeant Major
Sergeant Major
 
Posts: 181
Joined: Sun Aug 03, 2008 11:00 pm
Reputation: 0

Unread postAuthor: saefroch » Sat Nov 20, 2010 4:03 pm

Extend your stock farther back and put the pilot valve directly behind the QEV where you currently have a tee. You could try using a blowgun, but the flow will be less and I've never found a blowgun to be more comfortable than a ball valve anyways.

Other than that, it looks pretty good. I like how the stock is also part of the chamber to take advantage of that extra volume. The stocks on my builds just direct the pilot jet away (mostly:roll:) from my body.
  • 0

User avatar
saefroch
Major General
Major General
 
Posts: 1679
Joined: Mon Jun 08, 2009 8:47 am
Location: U.S.A.- See Map
Country: United States (us)
Reputation: 0

Unread postAuthor: ckman » Sun Nov 21, 2010 12:21 pm

Thanks. It'll take me about a week to do the pilot valve stock extension but without a doubt I'll do it.
  • 0

User avatar
ckman
Sergeant Major
Sergeant Major
 
Posts: 181
Joined: Sun Aug 03, 2008 11:00 pm
Reputation: 0

Return to Pneumatic Cannon Database

Who is online

Registered users: Bing [Bot], Google [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'