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 68 users online :: 3 registered, 0 hidden and 65 guests


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

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

My first Pneumatic Cannon Showcase... but will it blow

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
Sponsored 
  • Author
    Message

Unread postAuthor: Gaderelguitarist » Fri Nov 19, 2010 12:38 pm

PS. what do u think of the stock everybody I'm busy finishing it off now as we speak

Here are the pics of it half done, just got to thin the grips out for a more comfortable holding.


It looks as though you're using 3/4" thick board for your stock. A good starting point, but what gun stock is actually that thin throughout?

I would suggest getting some 1/4" thick material and placing it on the grip and the butt plate. The thinnest I've ever made a grip was 1", and I still used excess material to bulk it up for my hand.

Edit: Put the 1/4" stuff on BOTH sides in a symetrical fashion, paint the 3/4" stuff black, and stain the 1/4" before final assembly and it will be sure to turn heads.
  • 0

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

Unread postAuthor: Selador » Fri Nov 19, 2010 2:41 pm

Gippeto wrote:You've also hooked your blowgun up backwards. It's alright to try it that way, (maybe you get lucky?) but I wouldn't expect it to seal.


I have a GD-10, just like that.

And indeed, it will not seal, if hooked up backwards.

Doesn't mean that none of them will seal. But mine sure doesn't.
  • 0

If you can't fix it, you don't own it.

Selador
2nd Lieutenant
2nd Lieutenant
 
Posts: 213
Joined: Wed Nov 03, 2010 9:44 pm
Reputation: 0

NEW !!!

Unread postAuthor: sumisukyo » Sat Nov 20, 2010 1:29 am

OK so I went out to this local paint ball shop the one I got the Canister from and told him about my build he was really amazing took me to the back and started going over parts he had from old stock that would work and the pressures they could handle and the outcome is this

<a href="http://www.flickr.com/photos/24974530@N03/5190956729/" title="IMG_20101120_081559 by crks_wolf, on Flickr"><img src="http://farm5.static.flickr.com/4087/5190956729_317c3151d9.jpg" width="500" height="376" alt="IMG_20101120_081559"></a>

nice hey, I might extend the cable more to my hip belt.

<a href="http://www.flickr.com/photos/24974530@N03/5190956731/" title="IMG_20101120_081606 by crks_wolf, on Flickr"><img src="http://farm5.static.flickr.com/4087/5190956731_c5cdb5d6a7.jpg" width="500" height="376" alt="IMG_20101120_081606"></a>

using a paint ball valve and turning it to only allow a little pressure into the chamber until I have the pressure I want.

<a href="http://www.flickr.com/photos/24974530@N03/5190956733/" title="IMG_20101120_081615 by crks_wolf, on Flickr"><img src="http://farm5.static.flickr.com/4112/5190956733_d44f4a6bf9.jpg" width="500" height="376" alt="IMG_20101120_081615"></a>

Ok now I just have to replace these plastic bits and im ready to go

I saw what u mean about the PVC glue pulled it out with my bare hands going to get some epoxy today and use that :oops:

OW YA I showed my GF how the valve works by opening and shooting some gas off had about 2 quick bursts and I was out. Is That really the capability of this thing if I can only get 2 shots off ??

What i mean is everything attached (fully built) will i only get 2 shots ??
  • 0

Last edited by sumisukyo on Sat Nov 20, 2010 1:42 am, edited 1 time in total.

sumisukyo
Private
Private
 
Posts: 23
Joined: Mon Nov 15, 2010 1:56 pm
Reputation: 0

Re: NEW !!!

Unread postAuthor: Selador » Sat Nov 20, 2010 1:35 am

sumisukyo wrote:OW YA I showed my GF how the valve works by opening and shooting some gas off had about 2 quick bursts and I was out. Is That really the capability of this thing if I can only get 2 shots off ??


Age old story....

:wink: :lol:
  • 0

If you can't fix it, you don't own it.

Selador
2nd Lieutenant
2nd Lieutenant
 
Posts: 213
Joined: Wed Nov 03, 2010 9:44 pm
Reputation: 0

Re: NEW !!!

Unread postAuthor: jackssmirkingrevenge » Sat Nov 20, 2010 1:42 am

Oxbreath wrote:Age old story....

:wink: :lol:


Beat me to it :D

But seriously, unless your sprinkler valve takes ages to re-close, you should be getting a lot more than just 2 shots.

using a paint ball valve and turning it to only allow a little pressure into the chamber until I have the pressure I want.


Sprinkler valves usually require a minimum pressure to close, you might be dumping gas through the barrel until this happens. Do you mean you open the paintball tank to pressurise the chamber, close it, then fire and repeat?
  • 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

Re: NEW !!!

Unread postAuthor: sumisukyo » Sat Nov 20, 2010 1:57 am

Sprinkler valves usually require a minimum pressure to close, you might be dumping gas through the barrel until this happens. Do you mean you open the paintball tank to pressurise the chamber, close it, then fire and repeat?


YA thats it until i find a better option or build a second gun.
PS the rand is really weak and this entire build has cost me 2000 rand
thats just under 200 dollars that really sucks we don't have hobby stores :([/quote]
  • 0


sumisukyo
Private
Private
 
Posts: 23
Joined: Mon Nov 15, 2010 1:56 pm
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Sat Nov 20, 2010 2:01 am

I get my paintball parts from eBay, cheap as chips and usually good quality stuff, although shipping might take a while.
  • 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: sumisukyo » Sat Nov 20, 2010 2:10 am

jackssmirkingrevenge wrote:I get my paintball parts from eBay, cheap as chips and usually good quality stuff, although shipping might take a while.


HAHA NICE ONE !!!!
ok ok ok sorry I should explain myself,
THIS IS SOUTH AFRICA
THINGS GET STOLEN IF THEY ARE NOT BOLTED TO THE FLOOR!!!
Post if its not a letter doesn't arrive

Its not a place u trust Ebay to safely travel, You know how u can track where your package is, this is South Africa
leaves America... flies over the ocean... Hits Africa... and ... your package no longer exists in our database
  • 0


sumisukyo
Private
Private
 
Posts: 23
Joined: Mon Nov 15, 2010 1:56 pm
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Sat Nov 20, 2010 2:16 am

sumisukyo wrote:THINGS GET STOLEN IF THEY ARE NOT BOLTED TO THE FLOOR!!!


I see a business opportunity selling spanners then :)
  • 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: Heimo » Sat Nov 20, 2010 2:58 am

jackssmirkingrevenge wrote:
sumisukyo wrote:THINGS GET STOLEN IF THEY ARE NOT BOLTED TO THE FLOOR!!!


I see a business opportunity selling spanners then :)


well also being a South African, I can tell you that bolts does not stop them if they really want to break or steal something they will find a way...
an example of this is, I have once found a vandalized mailbox in a ditch that had been ripped out of a wall even though it had been fastened with 4 12mm rawl bolts I am still wondering how they managed to just rip it out of the wall like that...

besides jack they would most likely hold you up at gunpoint and steal your spanners.
  • 0

The voices in my head may not be real, but they have some good ideas!
User avatar
Heimo
2nd Lieutenant
2nd Lieutenant
 
Posts: 242
Joined: Sun Oct 25, 2009 3:02 pm
Reputation: 0

Unread postAuthor: sumisukyo » Sat Nov 20, 2010 9:17 am

OK my next step is to modify the sprinkler valve correctly so here are my steps
<a href="http://www.flickr.com/photos/24974530@N03/5192161546/" title="1 by crks_wolf, on Flickr"><img src="http://farm5.static.flickr.com/4149/5192161546_801702cf98.jpg" width="500" height="376" alt="1"></a>
<a href="http://www.flickr.com/photos/24974530@N03/5192161550/" title="2 by crks_wolf, on Flickr"><img src="http://farm5.static.flickr.com/4145/5192161550_ce78492223.jpg" width="500" height="376" alt="2"></a>
<a href="http://www.flickr.com/photos/24974530@N03/5192161556/" title="3 by crks_wolf, on Flickr"><img src="http://farm5.static.flickr.com/4084/5192161556_a3bdd257d4.jpg" width="500" height="376" alt="3"></a>
<a href="http://www.flickr.com/photos/24974530@N03/5192161558/" title="4 by crks_wolf, on Flickr"><img src="http://farm5.static.flickr.com/4148/5192161558_94f0944cf7.jpg" width="500" height="376" alt="4"></a>
<a href="http://www.flickr.com/photos/24974530@N03/5192161560/" title="5 by crks_wolf, on Flickr"><img src="http://farm5.static.flickr.com/4091/5192161560_a1e7d2c7d8.jpg" width="500" height="376" alt="5"></a>
<a href="http://www.flickr.com/photos/24974530@N03/5192161562/" title="6 by crks_wolf, on Flickr"><img src="http://farm5.static.flickr.com/4124/5192161562_c950174728.jpg" width="500" height="376" alt="6"></a>
I realize this next black seal is upside down I'v corrected that.
<a href="http://www.flickr.com/photos/24974530@N03/5191572953/" title="7 by crks_wolf, on Flickr"><img src="http://farm5.static.flickr.com/4092/5191572953_4f39e7c086.jpg" width="500" height="376" alt="7"></a>
<a href="http://www.flickr.com/photos/24974530@N03/5192169262/" title="8 by crks_wolf, on Flickr"><img src="http://farm5.static.flickr.com/4015/5192169262_f0834cbbe6.jpg" width="500" height="376" alt="8"></a>
Epoxy sealed the hole as most instructions say to do.
<a href="http://www.flickr.com/photos/24974530@N03/5192170068/" title="9 by crks_wolf, on Flickr"><img src="http://farm5.static.flickr.com/4106/5192170068_5c61db3188.jpg" width="500" height="376" alt="9"></a>

Have i done it correctly ??
Because Air just goes right through it
i used these instruction
http://www.thehalls-in-bfe.com/GGDT/library/valve_orbit1_mod.html
Side note: If i push down onto the white membrane it stops the flow ??
PS just in-case I've removed the epoxy from that small hole in the last picture.
  • 0


sumisukyo
Private
Private
 
Posts: 23
Joined: Mon Nov 15, 2010 1:56 pm
Reputation: 0

Unread postAuthor: Technician1002 » Sat Nov 20, 2010 9:32 am

Many tanks are shipped with a low pressure dry Nitrogen charge to prevent moisture from entering the tank. They are almost never shipped with a full pressure charge due to shipping regulations.

If you bought a "tank" you got just the cylinder. If you bought a canister of Nitrogen or CO2 you got a canister of gas.

This shipping pressure would be good for your 2 shots.

Did you buy gas?
  • 0

User avatar
Technician1002
Chief of Staff
Chief of Staff
 
Posts: 5190
Joined: Sat Apr 04, 2009 11:10 am
Reputation: 14

Unread postAuthor: Crna Legija » Sat Nov 20, 2010 10:12 am

sumisukyo wrote:
jackssmirkingrevenge wrote:I get my paintball parts from eBay, cheap as chips and usually good quality stuff, although shipping might take a while.


HAHA NICE ONE !!!!
ok ok ok sorry I should explain myself,
THIS IS SOUTH AFRICA
THINGS GET STOLEN IF THEY ARE NOT BOLTED TO THE FLOOR!!!
Post if its not a letter doesn't arrive

Its not a place u trust Ebay to safely travel, You know how u can track where your package is, this is South Africa
leaves America... flies over the ocean... Hits Africa... and ... your package no longer exists in our database




if shits like that id save my money and get fuk out of there, if they dont steal my plane tickets. :lol:
  • 0

'' To alcohol... The cause of, and solution to, all of life's problems.”
--Homer Simpson

Add me on ps3: wannafuk, 8/11/11 cant wait
User avatar
Crna Legija
Major General
Major General
 
Posts: 2333
Joined: Sun Jul 20, 2008 5:14 am
Location: australia
Reputation: 0

Unread postAuthor: sumisukyo » Sat Nov 20, 2010 10:24 am

Technician1002 wrote:Many tanks are shipped with a low pressure dry Nitrogen charge to prevent moisture from entering the tank. They are almost never shipped with a full pressure charge due to shipping regulations.

If you bought a "tank" you got just the cylinder. If you bought a canister of Nitrogen or CO2 you got a canister of gas.

This shipping pressure would be good for your 2 shots.

Did you buy gas?


Yes the tank is a paintball tank fulled when I purchased it.
  • 0


sumisukyo
Private
Private
 
Posts: 23
Joined: Mon Nov 15, 2010 1:56 pm
Reputation: 0

Unread postAuthor: sumisukyo » Sat Nov 20, 2010 10:43 am

PLEASE DONT TELL ME IM STUPID PLEASE DONT TELL ME THE SPRING GOES ON TOP !!!!!!!!!
(sorry if theres a all caps rule but seriously dont tell me)
  • 0


sumisukyo
Private
Private
 
Posts: 23
Joined: Mon Nov 15, 2010 1:56 pm
Reputation: 0

PreviousNext

Return to Pneumatic Cannon Discussion

Who is online

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

Reputation System ©'