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 56 users online :: 5 registered, 0 hidden and 51 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

Grib's First Pnuematic Cannon

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

Grib's First Pnuematic Cannon

Unread postAuthor: BigGrib » Thu Nov 22, 2007 5:10 am

Hey check it out it;s my first pnuematic cannon. I went with 1 1/2 for everything, including the valve, which was purchased at an Irrigation Specialists in Pasco, WA good people gave me a nice discount on the valve (like $15 bucks was originally 67 or something).

I decided to make the chamber "stockesque" with a 1/4 npt blowgun for the pilot. The barrel is still reg sch 40 cause the 1 1/2 sdr21 blew out of the back of my truck and was too lazy to go get it. After Thanksgiving i'm gonna go get another chuck or rape my combustion for a couple feet.

Oh yeah and dont get on my ass about no primer streaks, it's called clear primer. Oh yeah and everything is epoxied including that nifty little 1/4 npt to scrader valve which i got at ace hardware for 2 bucks. Anyway hope you guys like it.
  • 0

Attachments
Pnuematic 03.jpg
valve and scrader valve assy
Pnuematic 02.jpg
Valve, pilot assy, and feet
Pnuematic 01.jpg
the gun
Last edited by BigGrib on Thu Nov 22, 2007 2:00 pm, edited 1 time in total.
Yea, that's definitely going to get you at least a tazer.

<a href="http://www.youtube.com/watch?v=AkMkGOpAF4s">DONT TAZE ME BRO.. DONT TAZE ME... AHHHH</a>
facebook.com/biggrib
User avatar
BigGrib
Colonel
Colonel
 
Posts: 652
Joined: Mon Oct 01, 2007 11:43 pm
Location: TriCities, WA
Reputation: 0

Unread postAuthor: Novacastrian » Thu Nov 22, 2007 5:18 am

Clean as, apart from the footsies in the photo. Why the short barrel though, and also what psi does it operate at?
Very nice- Shorten the pilot hose :wink:

Edit: That valve looks like the bomb!
  • 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: BigGrib » Thu Nov 22, 2007 5:25 am

that barrel is that short cause it was all i had left and i wanted to shoot it right away and like i said i'm lazy didn't want to go back and get the piece that blew out,
I been running off of my 10 lb co2 tank for my keg system and the regulator only goes up to 50 psi, i did go over to my buddies who's got a compressor and i regulated it down to 70 just cause it's cold outside.
at 70 i can get about 15-20 seconds of hangtime with a red potato. Oh yeah and that valve is a freaking beast i love it though and you'll appreciate it, i can run my co2 regulator down to like 10 psi and i can start to fill the gun and play with the pilot valve and the way that piston and diaphragm vibrate it sounds like a didjeridoo!! rock on mate
  • 0

Yea, that's definitely going to get you at least a tazer.

<a href="http://www.youtube.com/watch?v=AkMkGOpAF4s">DONT TAZE ME BRO.. DONT TAZE ME... AHHHH</a>
facebook.com/biggrib
User avatar
BigGrib
Colonel
Colonel
 
Posts: 652
Joined: Mon Oct 01, 2007 11:43 pm
Location: TriCities, WA
Reputation: 0

Unread postAuthor: Novacastrian » Thu Nov 22, 2007 5:28 am

That is so cool, you have to pump that sucker up in the summer. Post some damage pics too if you are so kind :wink:
Again, nice work. :)
  • 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: BigGrib » Thu Nov 22, 2007 5:31 am

I'm gonna get her up to 120 in the summer and see what i can get I'm going shooting tomorrow and if i get ambitious i'll rape 2 feet of sdr21 from my combustion and go play a round of golf and get some nice pics
  • 0

Yea, that's definitely going to get you at least a tazer.

<a href="http://www.youtube.com/watch?v=AkMkGOpAF4s">DONT TAZE ME BRO.. DONT TAZE ME... AHHHH</a>
facebook.com/biggrib
User avatar
BigGrib
Colonel
Colonel
 
Posts: 652
Joined: Mon Oct 01, 2007 11:43 pm
Location: TriCities, WA
Reputation: 0

Unread postAuthor: Novacastrian » Thu Nov 22, 2007 5:32 am

Kewl, can't wait spud brother :P
  • 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: jackssmirkingrevenge » Thu Nov 22, 2007 5:34 am

long...hose....hurting...eyes....must....shorten....*reaches for stanley knife*
  • 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

Sponsored

Sponsor
 


Unread postAuthor: Novacastrian » Thu Nov 22, 2007 5:36 am

jackssmirkingrevenge wrote:long...hose....hurting...eyes....must....shorten....*reaches for stanley knife*


Hey i already mentioned that.... but yeah, grib,hose too long :lol:
  • 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: watto » Thu Nov 22, 2007 5:50 am

looks good, definately shorten the hose though or get rid of it completely. I tested mine with long and short hose just to see the difference and it's noticeable.

Image
  • 0

User avatar
watto
Captain
Captain
 
Posts: 327
Joined: Wed Dec 13, 2006 5:47 pm
Location: Australia
Reputation: 0

Unread postAuthor: psycix » Thu Nov 22, 2007 9:01 am

It looks very nice, its a clean and simple constructed gun.
The barrel could be longer for more power and well... yeah the hose
Cut it quickly as you might have JSR commit suicide if you dont!
  • 0

User avatar
psycix
Donating Member
Donating Member
 
Posts: 3684
Joined: Mon Jun 25, 2007 7:12 am
Location: The Netherlands
Reputation: 0

Unread postAuthor: watto » Thu Nov 22, 2007 9:07 am

Yes Ive noticed JSR has imeasureable hatred for large pilot volumes, rightly so I reckon
  • 0

User avatar
watto
Captain
Captain
 
Posts: 327
Joined: Wed Dec 13, 2006 5:47 pm
Location: Australia
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Thu Nov 22, 2007 12:01 pm

psycix wrote:Cut it quickly as you might have JSR commit suicide if you dont!


I'm not *that* commited to efficiency :roll: but if you appreciate the benefits of maximising the power potential of your launcher, screw the blowgun directly into the valve, simple as that.
  • 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: BigGrib » Thu Nov 22, 2007 2:05 pm

yeah yeah ok here's the deal on the hose, i got it from harbor frieght mainly because central hose and fitting was closed yesterday and i hate hose clamps and barbed fitting, so monday when central is open back up i will go down and have that hose shortened up, oh yeah and i didn't want the blowgun on the valve cause it is easier where the blowgun is positioned right now
  • 0

Yea, that's definitely going to get you at least a tazer.

<a href="http://www.youtube.com/watch?v=AkMkGOpAF4s">DONT TAZE ME BRO.. DONT TAZE ME... AHHHH</a>
facebook.com/biggrib
User avatar
BigGrib
Colonel
Colonel
 
Posts: 652
Joined: Mon Oct 01, 2007 11:43 pm
Location: TriCities, WA
Reputation: 0

Unread postAuthor: Ragnarok » Thu Nov 22, 2007 2:26 pm

I took a look at your cannon, thought: "JSR's going to complain about that long tubing", and was totally right.

Moving on, stunning spudgun.
Not awfully stylish, but any man who proclaims that vital for making ballistic chaos is just odd - still good obviously, although uncritical.

Though far from obvious, this post has two unusual traits marking it out. Who knows what?

*Solution from Jack in 3..2..1..*
  • 0

Does that thing kinda look like a big cat to you?
User avatar
Ragnarok
Chief of Staff
Chief of Staff
 
Posts: 5339
Joined: Tue Dec 19, 2006 8:23 am
Location: The UK
Reputation: 8

Unread postAuthor: psycix » Thu Nov 22, 2007 5:08 pm

jackssmirkingrevenge wrote:
psycix wrote:Cut it quickly as you might have JSR commit suicide if you dont!


I'm not *that* commited to efficiency :roll: but if you appreciate the benefits of maximising the power potential of your launcher, screw the blowgun directly into the valve, simple as that.


NONONO thats not good enough!
If you want efficiency build a small piston valve right ontop of the sprinkler wich will be pilotted by the blowgun -- without a hose.
  • 0

User avatar
psycix
Donating Member
Donating Member
 
Posts: 3684
Joined: Mon Jun 25, 2007 7:12 am
Location: The Netherlands
Reputation: 0

Next

Return to Pneumatic Cannon Database

Who is online

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

Reputation System ©'