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 64 users online :: 3 registered, 0 hidden and 61 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

M203 Tatical Paint Nader

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

M203 Tatical Paint Nader

Unread postAuthor: PCGUY » Sun Jan 30, 2005 11:39 pm

<div align="center"><img src="http://www.spudfiles.com/title.php?text=M203 TATICAL PAINT NADER">

Provided By - Longshot

Ok this launcher is my M203 Tatical Paint Nader
It is basically a "tiny-medium bore-floating diaphragm-coaxial"
It consists of a sch80 2.5" threaded plug in the back threaded into a female NPTxPipe threaded adapter. Then that is glued into a short section of 2.5" sch40 pvc pipe which is glued into a 2.5" Coupler. This coupler then is glued into the 2.5"x1.5" slipxsigot reducing bushing. This reducing bushing was sanded out to allow a 16" long piece of 1.5"sch40 pvc pipe to be inserted in and past it. The barrel extends to about the middle to middle back of the threaded adapter on the back of the gun. This makes it the coaxial.

The chamber space is obviously all the area around the 1.5" but inside the 2.5". The diaphragm consists of 3/8" neoprene disc fitted to move freely inside the threaded adapter's threads but not be too small that it will fall into the threaded plug. This is then inserted in between the barrel's end inside the gun and the threaded plug. There is maybe 1/8" of travel for the diaphragm. Enough to help out flow but not enough to cock to one side and not be able to reseal thus making it realiable as all get out.

The pilot for this valve is a 1/4" ball valve with a 1/4" male quick-disconnect adapter on the end and is threaded in via a 90* into the plug so that it points downward. I modded the handle to be longer in case there is a need for more leverage. To fill the gun you open the valve. And attach a female quick-disconnect with a shrader valve and the pro cede to pump. Or you can hook your Compressor right up to the Male fitting. This is all done with the Ball Valve open.

***(((IMPORTANT)))*** Then before you disconnect your air source from the quick disconnect, Close the Ball valve. If you don't you will shoot the thing off and probably poke your eye out, or in...Either way there will be blood tears and a bunch of us flaming you. Then since the valve is closed it is now ready to fire as long as the path from the plug to the valve to the male quick-disconnect then to the open air is clear. You will be able to fire it.

To fire it simply Open the ball valve to equalize pressure in the exhaust chamber which causes a suction to pull the diaphragm back and also deform it and let the air escape through the barrel. Sorta like in this drawing. That also is a visual of the valve. The only difference in it is that i didn't use a threaded adapter on the front. It could be a good idea and save yourself some bux if you mess up the Pass through barrel.

Performance with a 1oz milk cap.....
50 psi
213.8-218.7 fps

80 psi
401.2-403.2 fps

100 psi
486.1-490.3 fps

Provided By - Longshot</div>
  • 0

Attachments
diaphragm.jpg
IMAGE059.jpg
IMAGE058.jpg
IMAGE052.jpg
IMAGE048.jpg
IMAGE002.jpg
Golf ball with shell chiped off in the cannon.
IMAGE001.jpg
New Ammo
Last edited by PCGUY on Mon May 08, 2006 9:29 pm, edited 1 time in total.
Yes, I am the guy that owns & operates SpudFiles (along with our extremely helpful moderators).
User avatar
PCGUY
Site Admin
Site Admin
 
Posts: 1576
Joined: Wed Aug 18, 2004 10:54 pm
Location: Illinois
Country: United States (us)
Reputation: 19

Unread postAuthor: syco kilaa » Mon Jan 31, 2005 3:07 pm

well, I guess that it looks ok and all, but I think that you should have used a small diameter barrel, that way you could have more air space, also you should have extended the chamber all of the way to the barrel tip, that way the barrel will barely be sticking out the end of the gun if any would be in the first place, besides that it looks nice.
  • 0

NEGATIVE
User avatar
syco kilaa
Corporal
Corporal
 
Posts: 66
Joined: Wed Dec 29, 2004 11:01 am
Location: Raleigh, NC
Reputation: 0

Unread postAuthor: theexp » Mon Jan 31, 2005 7:10 pm

did you make the handle thingy for the ball valve? NIce name. Nice small cannon
  • 0

<img src="http://www.spudfiles.com/uploader/uploadFiles/post-12-1064980630.gif">

My website www.freewebs.com/potato_cannon/
User avatar
theexp
Master Sergeant
Master Sergeant
 
Posts: 157
Joined: Sun Oct 03, 2004 3:19 pm
Location: Chapel Hill NC
Reputation: 0

Unread postAuthor: pyroben » Mon Jan 31, 2005 7:15 pm

Simple, yet sweet. I like it. How far does it shoot? :?:
  • 0

duct tape makes the world go round
User avatar
pyroben
Private
Private
 
Posts: 7
Joined: Sun Oct 03, 2004 9:07 pm
Location: Chapel Hill, NC
Reputation: 0

Unread postAuthor: taterjim » Thu Sep 29, 2005 8:42 pm

Where can I get some 2.5" pipe? . so I can shoot tennis balls . I have been to several places like Lowes ,home depot ,Atwoods,and local hardware stores but I have yet to see any pipe that size or fittings.
  • 0


taterjim
Staff Sergeant
Staff Sergeant
 
Posts: 123
Joined: Sat Jul 23, 2005 10:14 am
Reputation: 0

Unread postAuthor: CS » Thu Sep 29, 2005 11:17 pm

Look at mcmaster.com
  • 0

User avatar
CS
Donating Moderator
Donating Moderator
 
Posts: 1897
Joined: Fri Feb 18, 2005 5:32 pm
Location: Southern Utah
Country: United States (us)
Reputation: 4

Unread postAuthor: bubblebathman » Fri Sep 30, 2005 10:56 am

that s ite is really laggy so i wouldnt reccommened it lol :lol:
  • 0


bubblebathman
Specialist
Specialist
 
Posts: 50
Joined: Thu Sep 22, 2005 12:45 pm
Location: USA
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: chevy08racing » Thu Jan 25, 2007 7:32 pm

Cool gun!
  • 0

Last edited by chevy08racing on Thu Jan 25, 2007 8:36 pm, edited 1 time in total.

chevy08racing
Specialist
Specialist
 
Posts: 46
Joined: Fri Jan 12, 2007 6:12 pm
Reputation: 0

Unread postAuthor: chevy08racing » Thu Jan 25, 2007 7:33 pm

how did you make the piston?
  • 0

Last edited by chevy08racing on Thu Jan 25, 2007 8:37 pm, edited 1 time in total.

chevy08racing
Specialist
Specialist
 
Posts: 46
Joined: Fri Jan 12, 2007 6:12 pm
Reputation: 0

Unread postAuthor: chevy08racing » Thu Jan 25, 2007 7:33 pm

can you please send me plans for that? sorry for double posting.
  • 0

Last edited by chevy08racing on Thu Jan 25, 2007 8:41 pm, edited 2 times in total.

chevy08racing
Specialist
Specialist
 
Posts: 46
Joined: Fri Jan 12, 2007 6:12 pm
Reputation: 0

Unread postAuthor: schmanman » Thu Jan 25, 2007 7:35 pm

BAN HIM! BAN HIM (chevy)! :evil: :x
  • 0

Persistence is a measure of faith in yourself
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: Hotwired » Thu Jan 25, 2007 7:36 pm

Go take a long walk off a sewage recycling plants observation catwalk Chevy.

We can do without your crap.
  • 0

User avatar
Hotwired
Lieutenant General
Lieutenant General
 
Posts: 2599
Joined: Fri Oct 13, 2006 5:51 am
Location: UK
Reputation: 0

Unread postAuthor: LGM » Thu Jan 25, 2007 7:39 pm

I agree, WTF chevy? :evil:
  • 0


LGM
Captain
Captain
 
Posts: 320
Joined: Mon Jan 22, 2007 3:06 pm
Reputation: 0

Unread postAuthor: ProfessorAmadeus » Thu Jan 25, 2007 7:46 pm

I hate you chevy.
  • 0

Insomniac wrote:Hey why am I a goose???? Why not somthing a little more awe inspireing, like an eagle or something? LOL

SOO CUTE!! OMG!! I COULD JUST LICK YOU!!
User avatar
ProfessorAmadeus
Brigadier General
Brigadier General
 
Posts: 1046
Joined: Fri Apr 28, 2006 5:39 pm
Location: texas
Reputation: 0

Unread postAuthor: schmanman » Thu Jan 25, 2007 7:56 pm

what makes you feel the need to say that? are you making up for you utter retarded-ness, ugliness, and overall F***ing stupidity by lowering others to make yourself feel superior? I remember one time where you were like "im smrt, i gt gud grads and stuffs, and i has a job at a machinesists shop. is is aprentice."

you also said "i cann beatt u up, idiot! I wil post picturer of me tu show huw big i am! so sut up!"

you are not smart, And I am guessing you just sweep floors, if any of this is true.

you are SOO F***ING RETARDED! GO AWAY! YOU ARE NOT WELCOME HERE!

whew, I'm done ranting.... .go away, we do not need people like you on these forums. and DONT EVEN think about joining spudshot.
  • 0

Persistence is a measure of faith in yourself
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

Next

Return to Pneumatic Cannon Database

Who is online

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

Reputation System ©'