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 36 users online :: 3 registered, 0 hidden and 33 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

Yellow Jacket

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

Yellow Jacket

Unread postAuthor: PCGUY » Tue Feb 01, 2005 12:16 am

<div align="center">YELLOW JACKET

Provided By - Splattered Starch

Yellow Jacket
(A coaxial piston exhaust valve cannon)

Specifications:
84"; x 2"; Smooth bore barrel
70"; x 4"; Chamber size
2:1 Chamber to barrel ratio
10-100 PSI Operating pressure
Piston exhaust Valve type

Special features:
Nitrogen filling setup
¼ quick disconnect for direct hookup to compressor hose as well as a Schrader valve
Removable barrel (uncommon in coaxial guns)
Modular design (in case of failure, which came in handy when a joint broke)

Description:
Yellow Jacket is a coaxial piston exhaust valve cannon. The piston exhaust valve design was selected for my first and only cannon due to its fast operating time, full porting, and simplicity of design. Construction took a weekend in the 2001 winter, one day at home and one in the machine shop. The most difficult part of construction was getting the 4"; by 2"; bushing down the 2"; barrel and trimming the end off the barrel to allow for proper valve operation.

The sprinkler valve was at one time operated electronically, however I discovered that it was just as easy to simply open the bleed lifter screw on the sprinkler valve to fire the cannon. The cannon requires a crew of 2 people to operate one to hold the cannon on his/her shoulder and aim, and another to fire. A stand would remedy the requirement of 2-person crew, however I have not settled on a stand design yet.

A nitrogen setup was later added to allow the cannon to travel further than the compressor hose. I find it to be an effective alternative to carbon dioxide. I was not keen of the fact that carbon dioxide gets very cold when it expands, much more than nitrogen. The nitrogen regulator allows for very consistent pressures, and high flow.

Provided By - Splattered Starch</div>
  • 0

Attachments
pic333.jpg
pic333.jpg (14.27 KiB) Viewed 4514 times
pic233.jpg
pic233.jpg (17.18 KiB) Viewed 4514 times
pic133.jpg
pic133.jpg (16.33 KiB) Viewed 4514 times
Last edited by PCGUY on Tue May 02, 2006 10:58 am, 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: theexp » Tue Feb 01, 2005 7:21 pm

Love the paint job, and nitrogen sytem. You should make a bipod for it. SO it can be worked by one person.
  • 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: syco kilaa » Tue Feb 01, 2005 10:31 pm

Yea, ummm, just a question, whats with the multiple rings around the chamber? is this to increase the strength of it?
  • 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 » Wed Feb 02, 2005 8:20 pm

I think those are couplings, but i don't know, just a guess
  • 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: bubblebathman » Mon Oct 03, 2005 12:34 pm

Nice name and gun. Maybe you should try to shoot a marble and post some destruction pics!
Edited: Boilingleadbath, caps de-locker
  • 0


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

Unread postAuthor: Andrew52 » Tue Mar 28, 2006 11:24 pm

ive been thinking about makink a large scale one ove these when i get the money
  • 0

User avatar
Andrew52
Sergeant Major
Sergeant Major
 
Posts: 196
Joined: Sun Feb 26, 2006 5:01 pm
Reputation: 0

Unread postAuthor: SpudStuff » Sun May 14, 2006 11:34 am

theexp wrote:I think those are couplings, but i don't know, just a guess


He says it is a modular design so thoes are probably grove seal couplings
  • 0

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

Sponsored

Sponsor
 


Return to Pneumatic Cannon Database

Who is online

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

Reputation System ©'