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 67 users online :: 3 registered, 1 hidden and 63 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

BB's in air chamber behind burst disk, will it puncture?

A place to ask general spud cannon related questions.
Sponsored 
  • Author
    Message

BB's in air chamber behind burst disk, will it puncture?

Unread postAuthor: Davidvaini » Thu Jun 05, 2008 11:53 pm

hey guys, have any of you tried to put any objects in a chamber held in by a burst disk?


I have made burst disk launchers and put objects past the disk but not before it.

I am thinking about putting a bunch of bb's in the air chamber behind a aluminum foil burst disk launcher and im wondering if the bb's with the pressure will prematurely puncture the burst disk.

I am working on a pre-loaded cartridge and it would make my design 1000 times easier if it doesnt.
  • 0

User avatar
Davidvaini
Major General
Major General
 
Posts: 1315
Joined: Tue May 29, 2007 8:58 pm
Reputation: 0

Unread postAuthor: OuchProgramme » Fri Jun 06, 2008 12:08 am

Uhh how would it burst?
The only way for the BB's to even move was to input air, which is breaking the burst disk...
  • 0


OuchProgramme
Major
Major
 
Posts: 371
Joined: Sat Jan 12, 2008 7:30 pm
Reputation: 0

Unread postAuthor: Davidvaini » Fri Jun 06, 2008 12:17 am

Well for example:

Say i run the burst disk normally and it normally bursts at 70psi. Now If I put in bb's will it burst at a lower psi such as 40? Just wondering if it lowers the ammount of psi needed to break the burst disk.
  • 0

User avatar
Davidvaini
Major General
Major General
 
Posts: 1315
Joined: Tue May 29, 2007 8:58 pm
Reputation: 0

Unread postAuthor: Hubb » Fri Jun 06, 2008 12:18 am

If all is in place and then you pressurize it, the BBs will stagnate and not move much (if at all). I don't think you would have to worry about them breaking the disk.
  • 0

User avatar
Hubb
Major General
Major General
 
Posts: 2390
Joined: Mon May 28, 2007 8:39 am
Location: South Georgia
Reputation: 2

Unread postAuthor: TwitchTheAussie » Fri Jun 06, 2008 12:24 am

Im gonna take a stab in the dark. M203 grenade?
  • 0

Raise your horns if you love metal.
spudgunning is like sex, once you've tasted, you can't wait til next time.
-
CpTn_lAw
User avatar
TwitchTheAussie
Brigadier General
Brigadier General
 
Posts: 980
Joined: Tue Feb 06, 2007 3:23 am
Reputation: 0

Unread postAuthor: DrowningTrout » Fri Jun 06, 2008 12:31 am

http://www.neospud.com/mark3/mark3.html
Similar to that???

I've personally seen that at airsoft, it is amazing. I've met neospud!
  • 0


DrowningTrout
Private First Class
Private First Class
 
Posts: 26
Joined: Sat May 31, 2008 7:18 pm
Reputation: 0

Unread postAuthor: Hubb » Fri Jun 06, 2008 12:32 am

I guess I misunderstood you the first time. From your example, you are only taking away from the volume of the chamber. I still do not think, however, the bbs will make the disk rupture at a lower pressure.

There's only one surefire way to find out, though...
  • 0

User avatar
Hubb
Major General
Major General
 
Posts: 2390
Joined: Mon May 28, 2007 8:39 am
Location: South Georgia
Reputation: 2

Sponsored

Sponsor
 


Unread postAuthor: Davidvaini » Fri Jun 06, 2008 12:37 am

DrowningTrout wrote:http://www.neospud.com/mark3/mark3.html
Similar to that???

I've personally seen that at airsoft, it is amazing. I've met neospud!


um no... not even close to the same concept....


mark3 is cool and all but I prefer the rc-p240 (P90 BBMG mod).


Anyways back on topic:

I wasnt sure if they would be stagnant or if they would "cloud" up and burst the disk.
  • 0

User avatar
Davidvaini
Major General
Major General
 
Posts: 1315
Joined: Tue May 29, 2007 8:58 pm
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Fri Jun 06, 2008 12:59 am

Something like this you mean?

Unless your cartridge has a BB diameter tube before the disk, where the BB is a perfect 100% seal, you should be safe.
  • 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: Davidvaini » Fri Jun 06, 2008 2:23 pm

jackssmirkingrevenge wrote:Something like this you mean?

Unless your cartridge has a BB diameter tube before the disk, where the BB is a perfect 100% seal, you should be safe.


yeah something like that but would hold a lot of bb's.
  • 0

User avatar
Davidvaini
Major General
Major General
 
Posts: 1315
Joined: Tue May 29, 2007 8:58 pm
Reputation: 0

Unread postAuthor: Davidvaini » Fri Jun 06, 2008 9:54 pm

well today I got my first working prototype cartridge system and it worked flawlessly. Sounded like a 12 gauge went off when I dry fired it. When loaded with wading and bb's it sounded exactly like a real grenade launcher. that familiar bloop or thump noise.
  • 0

User avatar
Davidvaini
Major General
Major General
 
Posts: 1315
Joined: Tue May 29, 2007 8:58 pm
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Sat Jun 07, 2008 4:20 am

Interesting, what are you using to burst the disk? photos/diagrams/videos would be nice :)

edit: nevermind, hadn't seen the thread :roll:
  • 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

Return to General Spud Cannon Related

Who is online

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

Reputation System ©'