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 49 users online :: 4 registered, 0 hidden and 45 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

Mini BBMG Idea

This area is for the discussion of BB or airsoft sub machine guns, and or other small arms such as pellets.
Sponsored 
  • Author
    Message

Mini BBMG Idea

Unread postAuthor: clemsonguy1125 » Thu Feb 11, 2010 6:13 pm

Well heres a BBMG idea I came up with the other day. Im pretty sure it would work a a semi auto gun. It works by air pressure coming through a schrader valve and building up pressure until it pushes a spring loaded epoxy piston forward past a hole to the barrel. The only problem is what kind of mag to attach and Im not sure if it will cycle automatic. Also Im not sure about the piston seal.
  • 0

Attachments
co2 bbmg.png
Heres a paint Image
co2 bbmg.png (8.11 KiB) Viewed 1018 times
User avatar
clemsonguy1125
Major General
Major General
 
Posts: 1485
Joined: Tue Jul 21, 2009 4:00 pm
Location: East Coast
Reputation: 1

Unread postAuthor: POLAND_SPUD » Thu Feb 11, 2010 10:11 pm

it's exactly the same as one of JSR's prototype that didn't work

the problem is that the piston would be pushed past the hole and would stay there slowly letting air to leak out
  • 0

Children are the future

unless we stop them now
User avatar
POLAND_SPUD
Chief of Staff
Chief of Staff
 
Posts: 5405
Joined: Sat Oct 13, 2007 4:43 pm
Country: Israel (il)
Reputation: 10

Unread postAuthor: clemsonguy1125 » Thu Feb 11, 2010 10:25 pm

Oh it is,I hadn't seen that but if I used a stronger spring and lower pressures would the pressure build pust it back and the strong spring return it back
  • 0

User avatar
clemsonguy1125
Major General
Major General
 
Posts: 1485
Joined: Tue Jul 21, 2009 4:00 pm
Location: East Coast
Reputation: 1

Unread postAuthor: jackssmirkingrevenge » Fri Feb 12, 2010 12:12 am

clemsonguy1125 wrote:If I used a stronger spring and lower pressures would the pressure build pust it back and the strong spring return it back


No, as POLAND_SPUD pointed out essentially what you'd make is a farting machine, or an angry wasp that cycles too fast to be useful.

If you want it to have any chance of working you have to introduce a pop-off element that will allow pressure buildup then piston movement - my work in this area is well documented - essentially it should look something like this:
  • 0

Attachments
untitled.gif
untitled.gif (2.14 KiB) Viewed 966 times
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: clemsonguy1125 » Fri Feb 12, 2010 3:55 pm

jackssmirkingrevenge wrote:
clemsonguy1125 wrote:If I used a stronger spring and lower pressures would the pressure build pust it back and the strong spring return it back


No, as POLAND_SPUD pointed out essentially what you'd make is a farting machine, or an angry wasp that cycles too fast to be useful.

If you want it to have any chance of working you have to introduce a pop-off element that will allow pressure buildup then piston movement - my work in this area is well documented - essentially it should look something like this:

Ok Ill give this a shot but might end up using it in a semi auto pellet gun
  • 0

User avatar
clemsonguy1125
Major General
Major General
 
Posts: 1485
Joined: Tue Jul 21, 2009 4:00 pm
Location: East Coast
Reputation: 1

Unread postAuthor: Skywalker » Fri Feb 12, 2010 4:31 pm

[quote='jack']my work in this area is well documented[/quote]

Wow, sounds like something you'd expect to hear in a research paper, not a spudgun forum! :lol: But it's true, Jack basically does all the research around here, with his crazy epoxy rapid prototyping method, while we sit around and wait till he comes up with something so we can copy it!
  • 0

User avatar
Skywalker
Sergeant Major
Sergeant Major
 
Posts: 177
Joined: Sun Aug 05, 2007 7:22 pm
Reputation: 0

Unread postAuthor: clemsonguy1125 » Fri Feb 12, 2010 4:39 pm

Ive looked through his stuff and been amazed but id never actually seen his idea similar to this
  • 0

User avatar
clemsonguy1125
Major General
Major General
 
Posts: 1485
Joined: Tue Jul 21, 2009 4:00 pm
Location: East Coast
Reputation: 1

Sponsored

Sponsor
 


Unread postAuthor: jackssmirkingrevenge » Sun Feb 14, 2010 1:58 pm

Skywalker wrote:Wow, sounds like something you'd expect to hear in a research paper, not a spudgun forum!


Well, I do come from an academic background and there's nothing wrong with taking R&D seriously, even if it is just for blowing holes in stuff ;)
  • 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 BB/Airsoft/Pellet Gun Discussion

Who is online

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

Reputation System ©'