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 47 users online :: 3 registered, 0 hidden and 44 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

KAP-R1

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

KAP-R1

Unread postAuthor: PCGUY » Sun Jan 30, 2005 11:58 pm

<div align="center">KAP R1

Provided By - Andeh

This my rifle, my favorite gun so far. </div>
  • 0

Attachments
updated4.jpg
updated4.jpg (10.7 KiB) Viewed 6702 times
updated3.jpg
updated3.jpg (9.29 KiB) Viewed 6702 times
updated2.jpg
updated2.jpg (11.29 KiB) Viewed 6702 times
business2.jpg
For the most part this is based on Rocketbiker's design for a rifle, except with 2 90's coming off the chamber as opposed to 45's. I like the feel quite a bit better and it doesn't hurt performance any. I can punch bouncy balls through plywood at 70 PSI and on up.

Some new updates that I just completed, bipod and strapless supports. They work with metal conduit pipe clamps. The barrel was in em pretty good, but I can't get it to work again.. ah well, I'll figure it out.
business2.jpg (7.98 KiB) Viewed 6702 times
gunwithtbbarrelonandotherstoside.jpg
It sports a 16&quot; x 2&quot; chamber for, with the stock, around 65 CI of chamber.

I have 2.5&quot;, 1&quot; SCH40, 1&quot; SCH80, and .5&quot; SCH40 barrels for it. 2.5&quot; is for tennis balls, 1&quot; SCH40 is for spuds and slightly larger bouncy balls, 1&quot; SCH80 is for slightly smaller bouncy balls, and .5&quot; SCH40 is for whatever small stuff fits. I've used marshmallows, gum balls, round candy.
gunwithtbbarrelonandotherstoside.jpg (10.17 KiB) Viewed 6702 times
Last edited by PCGUY on Mon May 15, 2006 2:55 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: pyroben » Mon Jan 31, 2005 7:17 pm

Awsome it would look even sweeter with a scope or laser guidence. Ver professional looking.
  • 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: theexp » Tue Feb 01, 2005 9:27 pm

Real nice Bipod...
That gun reminds me of the special forces commercial were the guys are sitting with weeds on them, observing the troops,

THat is the kind ofgun they would have.

I agree with ben, it is very proffesional looking and would be sweet with laser guidance
  • 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 10:30 pm

Well, as you may know, I do agree with the nuts above me here, but I highly advise you to make the air flow go directly to the barrel, DO NOT MAKE IT GO TO THROUGH THE STOCK!!! It can blow your arm off as well decreasing the air flow.
  • 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 8:23 pm

I agree with the syco kilaa above me, I would NOT make the air flow throuch the stock, it is dangerouse and restricks flow, but i am a nut, lol


:x transforming into a nut :x :evil: :twisted: :shock: ...

thats just a joke, not stepping on any toes
  • 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: saladtossser » Tue May 24, 2005 3:15 pm

the stock is the chamber, how can it blow? it is a bad idea when he is using a tennis-ball barrel...
  • 0

User avatar
saladtossser
Brigadier General
Brigadier General
 
Posts: 1234
Joined: Sat Mar 26, 2005 10:40 am
Location: Toronto
Reputation: 0

Unread postAuthor: julz » Wed May 25, 2005 1:29 am

yeh, if the valve was b4 the stock it would be bad but with the stock being the chamber too it couldnt hurt could it?
---Julz
  • 0

User avatar
julz
Sergeant Major
Sergeant Major
 
Posts: 178
Joined: Mon Apr 18, 2005 12:54 am
Location: australia
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: 3quarters » Fri Sep 16, 2005 10:59 pm

that stock is awesome
i also agree with the people above with the air running through the stock
believe me i know something about exploding fixtures
otherwise, nice cannon
it looks awesome with the bipod
good job, bro
  • 0


3quarters
Private First Class
Private First Class
 
Posts: 29
Joined: Fri Sep 16, 2005 9:39 pm
Reputation: 0

Unread postAuthor: Flinchy » Tue May 23, 2006 9:22 pm

you want to be careful when you create a lead from the pressure chamber to the barrel via a stock, or something that you will have on your body when you fire it. if you absolutely have to, you want to have the fewest number of bends in the pipe, because it will cause stress on the piping, and can possibly explode, wear out or leak over time. although very nice gun.... i really need to pick up some sch80 sometime.
  • 0

User avatar
Flinchy
Sergeant First Class
Sergeant First Class
 
Posts: 138
Joined: Tue Apr 11, 2006 6:38 pm
Location: Nifelheim
Reputation: 0

Unread postAuthor: sam_516 » Thu Jul 27, 2006 5:16 am

air is like a liquid so any decreases in the width of the chamber or any turns slows down the flow, and it does create an explosive inviroment so i sugest that you stop the air from flowing through the stock.
  • 0

User avatar
sam_516
Specialist
Specialist
 
Posts: 52
Joined: Thu Apr 06, 2006 9:51 pm
Location: brisbane, australia
Reputation: 0

Unread postAuthor: andeh » Sat Jul 29, 2006 9:21 am

You guys are getting way too technical now, it doesn't make a damn bit of difference whether the air goes through the stock or not performance wise. Check it on a chrony...
  • 0


andeh
Private
Private
 
Posts: 4
Joined: Mon Feb 13, 2006 5:58 pm
Reputation: 0

Unread postAuthor: Shrimphead » Sun Jul 30, 2006 12:19 am

It would be dangerous if it wasn't pressure rated. But if you're pumping less pressure into the gun than the pipe is rated for there won't be a problem.
  • 0

Controlled insanity = Genius
Life flies when you're being dumb.
User avatar
Shrimphead
Colonel
Colonel
 
Posts: 509
Joined: Thu Nov 17, 2005 7:42 pm
Reputation: 0

Unread postAuthor: newbie_spuder » Sun Mar 18, 2007 9:26 pm

i wish i had a gun like that
its a cool sniper
i cant tell... but...
does that tennis ball fit in the barrel well :?:
how much did it cost 4 the materialz

hey
im new
  • 0


newbie_spuder
Private
Private
 
Posts: 6
Joined: Fri Mar 16, 2007 10:29 pm
Reputation: 0

Unread postAuthor: fatcat » Sun Mar 18, 2007 9:29 pm

thats a sweet gun. i especially like the bipod
  • 0

User avatar
fatcat
Specialist
Specialist
 
Posts: 51
Joined: Fri Mar 16, 2007 10:56 pm
Location: central CA
Reputation: 0

Unread postAuthor: whittingstall » Mon Mar 19, 2007 7:26 am

Nice gun, looks fairly easy to hold and the different barrels are sweet too, I like interchangeability. =) Can't really see what you are using as a valve though. Overall nice gun, but you may want to decrease the number of elbows between the chamber and barrel from 4 to 2, will give you a more responsive burst of air when using your bigger barrels, depending of course on what your valve is.

andeh - EVERY elbow or corner in the tubing will decrease the overall power of the gun. The elbows cause turbulence, and some of the air will end up doing negative work on the rest of the air coming through the tubes, analogous to resistance in an electrical circuit, and as Flinchy mentioned it also increases the stress on the joints. The effect is noticed less at high pressure, but if you're below 50psi you may notice some losses. Use high pressure in there and it'll be fine, and in the future keep it in mind to have the minimal elbows/joints possible.
  • 0

User avatar
whittingstall
Private
Private
 
Posts: 14
Joined: Thu Mar 08, 2007 11:25 pm
Reputation: 0

Next

Return to Pneumatic Cannon Database

Who is online

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

Reputation System ©'