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 70 users online :: 5 registered, 0 hidden and 65 guests


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

Registered users: Bing [Bot], Exabot [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

My First pneumatic

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 

Pretty good for a first?

Amazing
1
8%
Good
5
38%
So-so
3
23%
Bad
2
15%
Piece of junk
2
15%
 
Total votes : 13
  • Author
    Message

My First pneumatic

Unread postAuthor: irisher » Thu Apr 30, 2009 7:21 pm

Although I have not posted in order this is my first spudgun.It uses a 1 in. UNmodified sprinkler valve.It is filled through a schreader in the back.It has a 3 inch chamber with a 3 inch barrel.The outer casing is aluminum flashing rolled around then painstakingly pop riveted and filled with Great Stuff.
  • 0

Attachments
t.jpg
The entire cannon.
first 003.jpg
The row of rivets is visible.
first 004.jpg
My ammo of choice,it consists of a soup can attached to the head of a ladle.
User avatar
irisher
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 420
Joined: Mon Dec 29, 2008 2:53 am
Reputation: 0

Unread postAuthor: CrashTestDummy II » Fri May 01, 2009 12:40 am

Looks great for a first pneumatic :)

Only thing I can think of; it looks like the reducer on one side of the sprinkler valve is a bell-reducer, and is probably DWV. But you most likely know about that stuff now, so I won't ramble on about it.

I like the aluminum shroud around the barrel and chamber. The rivets were put on nice and neat :)
  • 0

User avatar
CrashTestDummy II
Private
Private
 
Posts: 19
Joined: Fri Jul 11, 2008 9:40 pm
Location: Hillsboro, Oregon (USA)
Reputation: 0

Unread postAuthor: grock » Fri May 01, 2009 1:04 am

might want to consider a longer barrel for more power/accuracy. the rivets look great
  • 0

User avatar
grock
2nd Lieutenant
2nd Lieutenant
 
Posts: 231
Joined: Mon Dec 29, 2008 2:59 pm
Reputation: 0

Unread postAuthor: Gaderelguitarist » Fri May 01, 2009 1:15 am

Not bad for a first.

The aluminum flashing is interesting, but you did do a good job with the pop rivets.

Seems like you're losing a lot of performance from having too short of a barrel though. I'd lengthen it out a little.

Is the ammo hollow? I generally like to stick with ammo that has more of a punch. Sure it gives you more recoil, but the devastation is priceless.
  • 0

User avatar
Gaderelguitarist
Colonel
Colonel
 
Posts: 580
Joined: Sat Aug 16, 2008 9:56 pm
Location: Columbia, MD
Reputation: 0

Unread postAuthor: jook13 » Fri May 01, 2009 2:16 am

I generally like to stick with ammo that has more of a punch. Sure it gives you more recoil, but the devastation is priceless.


I dont see too much devistation with a heavy ammo combined with this large bore of a barrel and small of a valve. I garentee this shoots empty cans pretty quick though. At least quick to someone who hasnt built a big bore piston with big porting.

I like the cannon. Its nice to see the time you took to make that neat aluminum with rivets. Have fun with it man.
  • 0

I like to play blackjack. I'm not addicted to gambling, I'm addicted to sitting in a semi-circle.
User avatar
jook13
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 434
Joined: Mon Jan 21, 2008 10:39 pm
Location: Prescott Arizona
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Fri May 01, 2009 2:24 am

I'm used to seeing feet included from straight down shots, but this is the first time I've seen one from an angle :roll: you kids just keep looking for new ways to piss me off :? :D

I agree with the above comments, keeping the same overall length but reducing chamber length for a gain in barrel length should increase performance considerably, as well as modding the sprinkler valve.
  • 0

User avatar
jackssmirkingrevenge
Donating Member
Donating Member
 
Posts: 24225
Joined: Thu Mar 15, 2007 11:28 pm
Country: Holy See (Vatican City State) (va)
Reputation: 66

Unread postAuthor: Gaderelguitarist » Fri May 01, 2009 7:23 am

jook13 wrote:
I generally like to stick with ammo that has more of a punch. Sure it gives you more recoil, but the devastation is priceless.


I dont see too much devistation with a heavy ammo combined with this large bore of a barrel and small of a valve. I garentee this shoots empty cans pretty quick though. At least quick to someone who hasnt built a big bore piston with big porting.

I like the cannon. Its nice to see the time you took to make that neat aluminum with rivets. Have fun with it man.


And it doesn't help that I'm speaking from the perspective of someone who fires piston cannons regularly. I haven't used a sprinkler valve as a main valve for a while.

I have no doubt that it fires that can pretty fast.
  • 0

User avatar
Gaderelguitarist
Colonel
Colonel
 
Posts: 580
Joined: Sat Aug 16, 2008 9:56 pm
Location: Columbia, MD
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: inonickname » Fri May 01, 2009 9:13 am

I agree bout the barrel length and sprinkler valve. Essentially a 1" sprinkler is only 3/4" porting so I wouldn't use it with that size pipe but I bet it's great fun. Very good cannon for your first :o

The aluminum work is done very cleanly and compliments the cannon nicely. Good job!
  • 0

PimpAssasinG wrote:no im strong but you are a fat gay mother sucker that gets raped by black man for fun
User avatar
inonickname
Lieutenant General
Lieutenant General
 
Posts: 2606
Joined: Sun Dec 07, 2008 3:27 am
Reputation: 0

Return to Pneumatic Cannon Database

Who is online

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

Reputation System ©'