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 68 users online :: 6 registered, 0 hidden and 62 guests


Most users ever online was 155 on Mon Aug 15, 2016 1:40 am

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

The Team
Administrators
Global Moderators
global_moderators.png CS

Single Shot Loading Clip

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

Single Shot Loading Clip

Unread postAuthor: more_eggs » Thu Dec 16, 2010 10:36 pm

Ok so I got sick of unscrewing and re loading every shot when I was doing single shots, so I came up with this mag system which can hold 10 rounds at the moment (only because I wanted to keep it compact)
Now between shots, all I need to do is push the rod and it loads a bb into the breech and doesnt allow any more bbs through unless its pushed again due to the o-ring seal.
I considered going for a bolt action sort of loading system, but that would still require me to handle the ammo between shots, which I find to get tedious..
This method is working a treat and Im very happy with it.
:)

Heres a diagram, should explain what I mean.

EDIT: Oops I forgot to add in the pic that there is a spring pushing the plunger onto the bb's to maintain a tight seal with the bb about to be loaded and the retaining o ring.. I did this to help with efficiency and try to minimize air leakage
  • 0

Attachments
LoadClip.jpg
User avatar
more_eggs
Sergeant Major
Sergeant Major
 
Posts: 179
Joined: Sun Nov 21, 2010 7:48 pm
Reputation: 0

Unread postAuthor: django » Sat Dec 18, 2010 3:26 am

WOW,Thats a great idea mate :D
  • 0


django
Lieutenant Colonel
Lieutenant Colonel
 
Posts: 410
Joined: Sat Feb 12, 2005 11:33 pm
Location: Australia
Reputation: 0

Unread postAuthor: EvilFish » Thu Feb 17, 2011 4:58 am

Actually, a modified one of theese could be used in coaxial piston guns. This thing FTW.
  • 0


EvilFish
Specialist
Specialist
 
Posts: 45
Joined: Tue Aug 04, 2009 2:50 am
Reputation: 0

Unread postAuthor: lozz08 » Tue Feb 22, 2011 11:37 pm

Could become a very good design with some tweaking.

The seal at the very back is unnecessary. You need the head of the plunger to seal. If air gets past the plunger head there is a performance loss, and that won't change with the o-ring seal at the very back because some airflow is already diverted and doesn't have time to reach the end of the clip before the bb exits the barrel.
  • 0

User avatar
lozz08
2nd Lieutenant
2nd Lieutenant
 
Posts: 239
Joined: Wed Jul 01, 2009 7:33 am
Reputation: 0

Unread postAuthor: jackssmirkingrevenge » Wed Feb 23, 2011 12:46 am

I've been thinking about this lately, in spite of the fantastic "burst disk level" performance that detent type launchers offer, when it comes to repeaters the barrier I see is the next projectile blocking the breech before the first has enough time to leave the barrel.

One could make something likethis and manually cycle the bolt, but that will not give you true semi-auto (one shot per trigger pull).

The solution I was pondering was fitting a "blow forward" pin that would block off the magazine, allowing only the shot in the breech to be fired, in my head it looks something like this, though in practice I know this wouldn't work because the force of the projectile from the magazine on the pin would likely skew and jam it - but it would probably work for a gravity fed hopper. The diagram shows trigger open, but not enough pressure to pop the projectile. After this happens, the pin should spring back allowing the next projectile to feed.

Essentially it's similar to what Jimmy had proposed here based on what's used in RC warship combat.
  • 0

Attachments
vlbfconcept.gif
vlbfconcept.gif (5.95 KiB) Viewed 1246 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: mark.f » Wed Feb 23, 2011 6:46 am

If the static friction of the next BB in the magazine can overcome the force of the higher pressure in the magazine due to the venturi effect then you should be good, eggs.

I would also consider casting a "ramp" at the end of the magazine and running it along the bottom or top of the barrel to save space as well. Basically just add the same o-ring detent above your ramp.
  • 0

User avatar
mark.f
Donating Member
Donating Member
 
Posts: 3464
Joined: Sat May 06, 2006 11:18 am
Country: United States (us)
Reputation: 21

Unread postAuthor: POLAND_SPUD » Wed Feb 23, 2011 12:29 pm

@jsr
dude, I think that you should use an air cylinder ( yeah I know, you didn't expect that, did you?? :D )

Just ahve a look at your diagram... mount a single acting air cylinder and hook up its inlet with the chamber... as soon as teh chamebr fills with air it would expand and block the inlet....

flow restriction and inertia would guarantee that it wouldn't retract instantly the gun fires
  • 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

Sponsored

Sponsor
 


Unread postAuthor: jackssmirkingrevenge » Wed Feb 23, 2011 3:53 pm

You mean something like this? Or are you going to force me to buy a commercial air cylinder :P
  • 0

Attachments
cylmod.JPG
cylmod.JPG (20.07 KiB) Viewed 1155 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: POLAND_SPUD » Wed Feb 23, 2011 4:07 pm

that's right... though you understand that it would be better if the mag port was closer to the detent... not need to block the flow, the cylinder might as well force the next round back to the magazine tube

who said you need a comercial air cylinder... get a piece of pipe, use epoxy to build a piston, add an oring and voila! you is has an air cylinder :wink:
  • 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: jackssmirkingrevenge » Wed Feb 23, 2011 4:17 pm

Agreed.

POLAND_SPUD wrote:who said you need a comercial air cylinder... get a piece of pipe, use epoxy to build a piston, add an oring and voila! you is has an air cylinder :wink:


Or, better still, use a ready made piston ;)

Image

The concept reminds me of what al-xg had thought up a while ago, as well as the valveless machinegun idea.
  • 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], csitas, Google [Bot], Google Adsense [Bot], MSNbot Media, Yahoo [Bot]

Reputation System ©'