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 29 users online :: 4 registered, 0 hidden and 25 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

DBTBG - New idea for pneumatic

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

DBTBG - New idea for pneumatic

Unread postAuthor: TalonXxX » Thu Mar 22, 2007 3:25 pm

This idea came to me today in class to make a barrel sealing piston valve with 2 tennis ball barrels. Everything is to scale and I got the dimensions of the Spears website. Right now with the 1 chamber and 2 barrels there is a .5:1 C:B ratio. Let me know what you think and I might just build it this summer.
http://www.putfile.com/pic.php?img=5044385

There that link should work.
  • 0

Last edited by TalonXxX on Thu Mar 22, 2007 3:35 pm, edited 1 time in total.
User avatar
TalonXxX
Master Sergeant
Master Sergeant
 
Posts: 168
Joined: Sun Oct 16, 2005 3:22 pm
Location: Canada
Reputation: 0

Unread postAuthor: crazyfreak0075 » Thu Mar 22, 2007 3:26 pm

Your pic dosent work.
  • 0

User avatar
crazyfreak0075
Master Sergeant
Master Sergeant
 
Posts: 159
Joined: Thu Aug 17, 2006 4:09 pm
Reputation: 0

Unread postAuthor: lukemc » Thu Mar 22, 2007 3:46 pm

looks like a nice comfortable design but wouldnt 2 barrels cut the power in half?
  • 0

"Those who are different change the world. Those who are the same keep it that way"
User avatar
lukemc
Colonel
Colonel
 
Posts: 565
Joined: Sun Feb 25, 2007 8:48 am
Location: NY
Reputation: 0

Unread postAuthor: Brooner115 » Thu Mar 22, 2007 3:59 pm

Ya I think it would, u just need a bigger chamber or two chambrs of the same size linked to one valve good luck witk tkis gun :)
  • 0


Brooner115
Staff Sergeant
Staff Sergeant
 
Posts: 117
Joined: Sat Jan 27, 2007 3:07 pm
Reputation: 0

Unread postAuthor: imablackskater » Thu Mar 22, 2007 4:10 pm

I think you should just have one huge chamber to make a more comfertable shoulder mount
  • 0

Image
User avatar
imablackskater
Sergeant First Class
Sergeant First Class
 
Posts: 143
Joined: Sat Jan 13, 2007 5:52 pm
Reputation: 0

Unread postAuthor: spudthug » Thu Mar 22, 2007 4:13 pm

yea have 1 3-4" chamber with 2 2.5" barrels but have the barrels side by side instead of up and down...u may want to just have 2 modded sprinkler valves activated by one blowgun with 2 chambers leading to the barrels....
  • 0

4" piston valved cannon-half done..( i spilt my cement...)

Hybrid- 75% done. need to build propane holder and drill/tap sparkplug hole..
User avatar
spudthug
Brigadier General
Brigadier General
 
Posts: 936
Joined: Mon Feb 26, 2007 9:02 pm
Location: johnsonburg, Pa USA
Reputation: 0

Unread postAuthor: imablackskater » Thu Mar 22, 2007 4:24 pm

That would be two guns on one port set up and why have the barrels under one another a side to side barrel set up with a tee spliting off into two elbows would be better because no barrel would be easier to get to so you simply have the same momentum in each shot.
  • 0

Image
User avatar
imablackskater
Sergeant First Class
Sergeant First Class
 
Posts: 143
Joined: Sat Jan 13, 2007 5:52 pm
Reputation: 0

Sponsored

Sponsor
 


Unread postAuthor: spudthug » Thu Mar 22, 2007 4:28 pm

thats what i said......but u wouldnt get very much power at all with a 1 inch chamber and 2 barrels...
  • 0

4" piston valved cannon-half done..( i spilt my cement...)

Hybrid- 75% done. need to build propane holder and drill/tap sparkplug hole..
User avatar
spudthug
Brigadier General
Brigadier General
 
Posts: 936
Joined: Mon Feb 26, 2007 9:02 pm
Location: johnsonburg, Pa USA
Reputation: 0

Unread postAuthor: imablackskater » Thu Mar 22, 2007 4:38 pm

sorry about that :D
  • 0

Image
User avatar
imablackskater
Sergeant First Class
Sergeant First Class
 
Posts: 143
Joined: Sat Jan 13, 2007 5:52 pm
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Thu Mar 22, 2007 4:41 pm

Why not a larger diameter laucher that can fire three tennis balls in a sabot?

Or simply a single barrelled launcher with a small cloud style magazine?
  • 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: jrrdw » Thu Mar 22, 2007 4:41 pm

Thats a good idea for a novelty cannon. Me i prefer a side by side opposed to a over and under. Theres a bunch of ways you could lay it out, me, i would use one big chamber, 3"X5' L, then lay the barrels side by side rite down the lenth of the chamber, well....1' longer. Maby one sprinkler to a tee, elbows, to barrels, 1 1/2"X6' L. Wish i'de thought of that last fall!
  • 0

When life gives you lemons...throw them back they suck!
User avatar
jrrdw
Donating Moderator
Donating Moderator
 
Posts: 6539
Joined: Wed Nov 16, 2005 5:11 pm
Location: Maryland
Country: United States (us)
Reputation: 25

Unread postAuthor: TalonXxX » Thu Mar 22, 2007 5:08 pm

Cool, thanks for all of the input everyone, I am taking these ideas and will think through a revision of this design. But ya, I realize that the current design wouldn't be very powerful and like mentioned above... it will be purely a novelty cannon. I just wanted to build something that no one else has ever done. I think someone made mention to something similar to a launcher with 3 barrels DR made, but I can't look it up at the SGTC is currently down.

So, thanks again for the input and I am getting really excited about the possibilities of this launcher.

:D peace

ps. this was my very first time using Google Sketchup and it was so much fun to play around with, I suggest anyone to use this to make their designs as it is completely user friendly and intuitive. It only took me like 20-30 mins to sketch this up (including time to look up exact sizes of the components)
  • 0

User avatar
TalonXxX
Master Sergeant
Master Sergeant
 
Posts: 168
Joined: Sun Oct 16, 2005 3:22 pm
Location: Canada
Reputation: 0

Unread postAuthor: jrrdw » Thu Mar 22, 2007 8:33 pm

It only took me like 20-30 mins to sketch this up (including time to look up exact sizes of the components)???

Sketch what up?
  • 0

When life gives you lemons...throw them back they suck!
User avatar
jrrdw
Donating Moderator
Donating Moderator
 
Posts: 6539
Joined: Wed Nov 16, 2005 5:11 pm
Location: Maryland
Country: United States (us)
Reputation: 25

Unread postAuthor: TalonXxX » Thu Mar 22, 2007 8:42 pm

That image I have on putfile of the design of my gun I made on Google Sketchup...

and like I said, the only reason it took that long is because everything it proportional and accurate to .01 of an inch.
  • 0

User avatar
TalonXxX
Master Sergeant
Master Sergeant
 
Posts: 168
Joined: Sun Oct 16, 2005 3:22 pm
Location: Canada
Reputation: 0

Unread postAuthor: Flying_Salt » Thu Mar 22, 2007 8:57 pm

I don't know if anyone has said this, but something tells me that most of the air will go through the top barrel.
I actually was thinking about this the other day in math class, and since any diagrams I made are too illegible to be scanned, I spent about half a second drawing this on paint.
You get one of those triple converter things, then plug off the middle one. The red thing is the plug, the gray things are barrels, and the black box is the chamber. NOT so scale, but I think you can get it.

Image
  • 0

sgort87 wrote:I hereby present Flying_Salt with The one and only <a href="http://www.geocities.com/sgort87/ghetto">Ghetto Award!</a>
User avatar
Flying_Salt
Brigadier General
Brigadier General
 
Posts: 779
Joined: Mon Oct 09, 2006 4:57 pm
Location: Texas
Reputation: 0

Next

Return to Pneumatic Cannon Discussion

Who is online

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

Reputation System ©'