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 61 users online :: 3 registered, 1 hidden and 57 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

Paintball Cannon - The Raptor

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

Paintball Cannon - The Raptor

Unread postAuthor: sodman2k » Tue Mar 14, 2006 6:40 am

:twisted: The Raptor :twisted:
I set out to build a pneumatic sniper rifle for paintballs, but due to lack of funding and some slight redesigning I have ended up with something a little more powerful and, in all honesty, fun!

The barrel and chamber are both 1m long, the barrel is 25mm diameter and the chamber is 40mm diameter. The valve is a modified sprinkler valve. Unfortunately the particular devise that i purchased has a guide rod so I had to drill off to the side which caused quite a problem when it came to sealing the cannon. Because the barrel is slightly too big for a paintball it also allows for some more inventive ammo choices. Hows the penetration of rocks (no wadding) through this 3mm aluminium?

I decided to test the accuracy by setting up a cradle 20m away from a large piece of cardboard. The chamber was filled to approximately 80psi and fired. The problem is that the valve had quite a severe leak during the testing so the air pressure was no always the same. The picture shows a line of four shots, between 60cm of each other as well as a single shot 30cm off to the left. My guess is the differences can be accounted for by slight differences in pressure and paintball shape (I use second-hand paintballs from a skirmish joint next door to us) as well as a shot where the gun was not properly in its cradle.

I have had one accident already. At 6m and 40psi a paintball shattered a car window despite it only hitting the very bottom of glass. Since then I have decided to not fire anything over 60psi due to the risk in the case of an accident.

You may have noticed that the cannon does not have a butt however it uses t-pieces instead of 90 degree elbows. This is because it will get a mini-butt later.

The Raptor was a fast, silent and deadly creature, lacking the brute strength of a t-rex or sheer size of a brachiosaurus, without sacrificing any of its power. I see this weapon the same way as opposed to the massive combustion that a friend has built.

If you would like to ask anymore questions please e-mail me at: sodman2k@hotmail.com
  • 0

Attachments
wholecannon.JPG
The Cannon
penetrationback.JPG
The rock lodged in the metal
holeypenetraion.JPG
the hole
accuracy.JPG
the spread
accuracy&me.JPG

sodman2k
Private
Private
 
Posts: 9
Joined: Fri Feb 03, 2006 6:46 am
Reputation: 0

Unread postAuthor: saladtossser » Tue Mar 14, 2006 10:29 am

lookin sharp, is there any reason that you used a T fitting instead of elbows?
  • 0

"whoa... I thought pimpmann was black..."-pyromanic13
User avatar
saladtossser
Brigadier General
Brigadier General
 
Posts: 1234
Joined: Sat Mar 26, 2005 10:40 am
Location: Toronto
Reputation: 0

Unread postAuthor: SpudStuff » Tue Mar 14, 2006 11:50 am

probably because he didnt have the proper elbows
  • 0

User avatar
SpudStuff
Major General
Major General
 
Posts: 1410
Joined: Sat Dec 10, 2005 3:55 pm
Location: Cupertino, California
Reputation: 1

Re: Paintball Cannon - The Raptor

Unread postAuthor: TfAv1228 » Tue Mar 14, 2006 2:49 pm

sodman2k wrote:You may have noticed that the cannon does not have a butt however it uses t-pieces instead of 90 degree elbows. This is because it will get a mini-butt later.
  • 0


TfAv1228
Private
Private
 
Posts: 24
Joined: Sat Feb 18, 2006 1:08 am
Reputation: 0

Unread postAuthor: dragon finder » Tue Mar 14, 2006 4:34 pm

Nice cannon and welcome to spud files.
  • 0

User avatar
dragon finder
Major
Major
 
Posts: 398
Joined: Sun Jan 22, 2006 10:31 pm
Reputation: 0

Unread postAuthor: drac » Tue Mar 14, 2006 4:45 pm

Excellent! It've very clean!
  • 0

User avatar
drac
Moderator
Moderator
 
Posts: 916
Joined: Sun Apr 24, 2005 8:56 am
Location: North Collins, NY
Country: United States (us)
Reputation: 2

Unread postAuthor: Atlantis » Tue Mar 14, 2006 8:07 pm

Nice cannon. Also, I'm glad somebody actually put some thought into naming their cannon. I'm really sick of seeing 5 different BFG's. When I make a cannon I'm gonna call it the MJOLNIR, the hammer of the gods.
  • 0

User avatar
Atlantis
Brigadier General
Brigadier General
 
Posts: 955
Joined: Sat Sep 03, 2005 10:26 pm
Location: Florida
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: alxjpow » Thu Mar 23, 2006 6:48 am

Hi first post, been a pyro for a while now. only a couple of minor burns and one major ones. but anyway i'm a good friend of 'sods' anyway i helped out on this gun and i just wanna say it SCARES me lol. great design.
  • 0


alxjpow
Private
Private
 
Posts: 2
Joined: Thu Mar 23, 2006 6:39 am
Reputation: 0

Unread postAuthor: mitchelll » Thu Mar 23, 2006 7:05 am

hey sean just seen ur cannon its pretty neat!love it good work like the name to!
  • 0


mitchelll
Private
Private
 
Posts: 4
Joined: Thu Mar 23, 2006 5:46 am
Reputation: 0

Unread postAuthor: schmanman » Thu Mar 30, 2006 7:15 am

what size is the sprinkler valve?
  • 0

User avatar
schmanman
Major General
Major General
 
Posts: 1685
Joined: Sat Mar 25, 2006 12:28 pm
Location: Michigan,U.S.A
Country: United States (us)
Reputation: 0

Unread postAuthor: sodman2k » Mon Apr 03, 2006 10:25 pm

the valve is 25mm (1inch).
Watch this place because i will be posting lots of updates to go with the updates that i have made to the gun.
SNEAK PEAK: I can now fire a paintball 200m with 25psi...
  • 0


sodman2k
Private
Private
 
Posts: 9
Joined: Fri Feb 03, 2006 6:46 am
Reputation: 0

Return to Pneumatic Cannon Database

Who is online

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

Reputation System ©'