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 55 users online :: 3 registered, 0 hidden and 52 guests


Most users ever online was 218 on Wed Dec 07, 2016 6:58 pm

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

The Team
Administrators
Global Moderators
global_moderators.png CS

Steel Pipe QEV air 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

Steel Pipe QEV air gun

Unread postAuthor: MCRKilljoy » Sat Dec 10, 2016 10:04 pm

I built this air gun out of steel pipe. The tank is 1 inch steel pipe, the barrel (not shown) is 1/2 inch copper pipe or 1/2" SCH 80 PVC pipe. The ball valve is the pilot, and you fill with the quick disconnect. I also made a brass adapter to use a bike pump instead of an air compressor. Barrels are interchangeable and I have a 1/2 inch PVC plug as a dust cap when no barrel is installed. Barrels are just screwed in hand tight. This air gun is very loud and makes a big bang when it goes off. Ammo is AA batteries and 1/2 inch dowel sections. I also have a custom machined brass projectile. Corks are also a good option, and corks can be supersonic. In the first picture you can see a brass street elbow, it was later replaced with a galvanized one as you can see in the second picture.
Image
Image
  • 0

Last edited by MCRKilljoy on Sun Dec 18, 2016 2:09 pm, edited 5 times in total.
User avatar
MCRKilljoy
Private
Private
 
Posts: 12
Joined: Wed Dec 07, 2016 7:14 pm
Country: United States (us)
Reputation: 2

Re: Steel Pipe QEV air gun

Unread postAuthor: auxiliary » Tue Dec 13, 2016 8:18 pm

I like the ergonomics so you can hold the tank with one hand and use the elbow as a pistol grip and the ball valve handle as a trigger. Did you try out different pilot valves? It seems like you could get away with a smaller valve than a 1/2" ball valve.
  • 0

User avatar
auxiliary
Sergeant First Class
Sergeant First Class
 
Posts: 145
Joined: Sun Jan 20, 2008 12:01 pm
Reputation: 8

Re: Steel Pipe QEV air gun

Unread postAuthor: MCRKilljoy » Wed Dec 14, 2016 6:21 pm

Auxiliary, I used the 1/2" ball valve because I had it lying around. I hold the tank with one hand and pull the valve with the other. The elbow does not make a good pistol grip. The top port of the QEV is where you hook up the barrel. At 150 PSI I shot an AA battery through thick plywood using the 1/2" copper barrel.
  • 0

User avatar
MCRKilljoy
Private
Private
 
Posts: 12
Joined: Wed Dec 07, 2016 7:14 pm
Country: United States (us)
Reputation: 2

Return to Pneumatic Cannon Database

Who is online

Registered users: Bing [Bot], Google [Bot], Google Adsense [Bot]

Reputation System ©'