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, 1 hidden and 49 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

1st pneumatic- Irvine SS

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

1st pneumatic- Irvine SS

Unread postAuthor: Jacksa26 » Sun Mar 02, 2008 5:02 am

Hey folks!

Ive been lurking around Spud Files for the past few months now, so i thought it was about time to sign up and share my first completed Pneumatic.
This model has had many chops and changes but im finally happy with its design...
SPECS
VALVE: modded 3/4inch sprinkler valve
CHAMBER: 60mm x 10inch long pressure rated PVC
BARREL: 17mm x 75cm long stainless steel
STOCK: 15mm pressure rated PVC plus various joints
TRIGGER: 1/4inch ball valve
SCOPE: Nikko Stirling 4x40 Gold Crown

I built this because i wanted something different, as since i was a kid ive built combustions, so pneumatics were new to me. I found that using the 1/4inch ball valve for a trigger rather than a blowgun the sprinkler valve gets better air flow and opens faster (maybe i had a dodgy blow gun???)

When i constructed the stock, i didnt want any airflow going through it so i blocked the two ends off by fashioning two small PR PVC discs that would fit perfectly inside the T pieces (see diagram). Once they were cemented in, the stock was fitted which created the seal.
The chamber used to be much larger... im talking about 2ft of the 60mm PVC, which was pretty lousy unless i was resting it on something or using a bipod because it was so unbalanced. It wasnt until i experimented around a bit that i found i could get decent power with a smaller chamber like i have now.

Hope you like it!
  • 0

Attachments
DSCF1477.JPG
DSCF1472.JPG
DSCF1469.JPG
closer shot of the trigger assembly
DSCF1468.JPG
the air flow- T pieces are blocked using shaped PVC discs
DSCF1466.JPG
my gun, with paintball barrel above and secondary chamber below
The Wheel of Time turns, and Ages come and pass, leaving memories that become legend.
User avatar
Jacksa26
Private
Private
 
Posts: 17
Joined: Thu Feb 21, 2008 4:38 am
Location: australia
Reputation: 0

Unread postAuthor: Thursto » Sun Mar 02, 2008 6:08 am

WOW. Im stunned. great job for a first.

i love it when newbies search and study for there first cannon and produce something very good with or without few minor questions.

Looks great. Nice clean construction and paintjob. i like the interchangable barrle and tanks.

nice and shinny barrel :twisted:

Overall great job, whats the performence and accuracy like?

What PSI do you use it at?

~Thursto.

EDIT: Btw to make it more balance you could of added weights to the stock to balance it back out, but it'd make the gun overall more heavy, and a fold-up bi-pod would add a nice little touch!
  • 0

~ AUSSIE LAND ~
Image
User avatar
Thursto
Major
Major
 
Posts: 389
Joined: Fri Mar 02, 2007 5:11 am
Location: Australia, SA, Adeliade, Para Hills
Reputation: 0

Unread postAuthor: Jacksa26 » Sun Mar 02, 2008 7:05 am

thanks Thursto!
i havent had a chance to use it at its full potential yet (work, neighbors), i usually keep it at about 50-60psi which i rekon is more than enough!

The performance is great, when i first made it it had a ball valve instead and the paintball barrel was all i used for all ammo types. Once i changed these two things performance and accuracy went up by a mile.
  • 0

The Wheel of Time turns, and Ages come and pass, leaving memories that become legend.
User avatar
Jacksa26
Private
Private
 
Posts: 17
Joined: Thu Feb 21, 2008 4:38 am
Location: australia
Reputation: 0

Unread postAuthor: Maniac » Sun Mar 02, 2008 10:51 am

Nice gun man i can tell you put a lot of work into this. Hey what kind of scope is that and how much did it cost?
  • 0

Coodude26 wrote:
People who laugh really hard at stuff that pisses you off/you getting hurt, who then say "I'm sorry, I can't stop" but you know they easily could.

Mr.C: That's not as easy as you think. It's like me kicking you in the balls and telling you to stop crying.
User avatar
Maniac
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 496
Joined: Tue Oct 23, 2007 5:55 pm
Location: Right behind you
Reputation: 0

Unread postAuthor: pizlo » Sun Mar 02, 2008 2:26 pm

Nice job with the secondary chamber, more people should do that.
  • 0

User avatar
pizlo
Brigadier General
Brigadier General
 
Posts: 783
Joined: Fri Dec 22, 2006 7:27 pm
Reputation: 0

Unread postAuthor: Novacastrian » Sun Mar 02, 2008 2:49 pm

Great work Jacksa :P I am sure that you will discover that 60psi is far from plenty though :D
How is that scope to use, seems like it may be mounted a little too far forward. I'll give it an 8/10 :D
  • 0

America, the greatest gangster of all time. With 200 million odd foot soldiers at it's whim and call.
When you fill your car with refined oil remember that it has been paid for with blood and guts, some from your own countrymen, most not.

Novacastrian
Major General
Major General
 
Posts: 1604
Joined: Sat Aug 11, 2007 6:59 pm
Reputation: 0

Unread postAuthor: Mitchza89 » Sun Mar 02, 2008 6:23 pm

Great first build you have yourself there mate. You should be very proud. Best of luck with more builds in the future. :D
  • 0

Image
User avatar
Mitchza89
Brigadier General
Brigadier General
 
Posts: 1056
Joined: Tue Jan 09, 2007 12:05 am
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: Cosmic Muffin » Sun Mar 02, 2008 6:47 pm

good one for your first, but one small suggestion, whack in a barrel support, on that can be removed easily to put the thinner chamber in. im only saying this cos im sure theres a lot of pressure on that solenoid valve.
again, Nice gun :D :wink:
  • 0

User avatar
Cosmic Muffin
1st Lieutenant
1st Lieutenant
 
Posts: 275
Joined: Mon Jan 14, 2008 10:30 pm
Location: arse end of nowhere
Reputation: 0

Unread postAuthor: Killjoy » Sun Mar 02, 2008 7:23 pm

wow that looks great, excellent job. Looks decently comfy to shoot. I'm nicer then nova so you got a 9/10.
  • 0

Stanford Class of 2012

"In the end our society will be defined not only by what we create, but what we refuse to destroy"- John Sawhill

Killjoy
Brigadier General
Brigadier General
 
Posts: 1053
Joined: Sun Nov 12, 2006 12:51 am
Location: New Mexico
Reputation: 0

Unread postAuthor: SpudBlaster15 » Sun Mar 02, 2008 7:44 pm

Excellent job. I really like the way this gun appears aesthetically.

So long as your solvent welds are structurally sound, you should be able to purchase a quality track pump and take it to 150PSIG.
  • 0

People should not be afraid of their governments. Governments should be afraid of their people.
User avatar
SpudBlaster15
Major General
Major General
 
Posts: 2385
Joined: Wed Oct 18, 2006 11:12 pm
Location: Canada
Country: Poland (pl)
Reputation: 3

Unread postAuthor: OuchProgramme » Sun Mar 02, 2008 8:01 pm

Wow...i....have the same designs as you have.
I'm still working on it though.
My air chamber is smaller in diameter and is closer to the barrel. The stock is a bit smaller.
The blocking piece i used to block air from pressurizing the stock was a sanded down 1/2 inch endcap.
  • 0


OuchProgramme
Major
Major
 
Posts: 371
Joined: Sat Jan 12, 2008 7:30 pm
Reputation: 0

Unread postAuthor: Jacksa26 » Tue Mar 04, 2008 5:36 am

Thanks for the replies everyone! I really appreciate your comments and ideas.

@ Maniac-
The scope is a Nikko Stirling 4x40 Gold Crown, which i picked up for $20 (!) at a local gun store because was missing its end caps and had a wobbly piece in it (which i fixed).

hey Novacastrian, i just noticed that in the 4th pic the scope looks way too far forward, but i think that might just be the camera. I set it to the most comfy position to shoot with... but i may be wrong, it might be too far forward.

CM, there usually is a support b/w the barrel and the chamber, i must have forgotten to put it back on that day when i was changing the gear around. Thanks for noticing though, i'll make a note not to forget that again.

Thanks again everyone!
  • 0

The Wheel of Time turns, and Ages come and pass, leaving memories that become legend.
User avatar
Jacksa26
Private
Private
 
Posts: 17
Joined: Thu Feb 21, 2008 4:38 am
Location: australia
Reputation: 0

Unread postAuthor: Hydra » Sun Jul 06, 2008 8:39 pm

haha did u follow irwinners (singularity) instructable on instructables.com
cuz seriously, it looks exactly like his.
  • 0

User avatar
Hydra
Sergeant First Class
Sergeant First Class
 
Posts: 131
Joined: Sat Mar 08, 2008 11:58 pm
Location: New South Wales, Australia
Reputation: 0

Unread postAuthor: biggsauce » Sun Jul 06, 2008 9:19 pm

VERY nice! The barrel and larger diameter chamber give it a cool look. Cant go wrong with a black paint job too 8)

I assume you have a threaded hose barb coming from your sprinkler vavle? It looks as if its coming out at an odd angle from the cap on your valve... is it just me?
  • 0

User avatar
biggsauce
Captain
Captain
 
Posts: 338
Joined: Thu Jun 07, 2007 9:42 pm
Reputation: 0

Unread postAuthor: rednecktatertosser » Sun Jul 06, 2008 9:24 pm

Hot Damn!! Very nice. kudos on blocking the flow for better performance.

Hurry up with those damage pics and videos!!

Does the scope work good on this one? Ive shot my uncles Ruger .300 mag using that same scope, and it was pretty good for that purpose!
  • 0

"When you tell some body something, it depends on which part of these United States your standing in, as to how dumb you sound."
-Burt Reynolds as: Bo "Bandit" Darville
User avatar
rednecktatertosser
Colonel
Colonel
 
Posts: 590
Joined: Tue May 22, 2007 7:52 pm
Reputation: 0

Next

Return to Pneumatic Cannon Database

Who is online

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

Reputation System ©'