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 55 users online :: 5 registered, 0 hidden and 50 guests


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

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

The Team
Administrators
Global Moderators
global_moderators.png CS

Rifle 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

Rifle idea

Unread postAuthor: etsmc » Thu Nov 02, 2006 8:03 am

Hi, i may be new to the forum but i have been reading asmany posts as i can befor i registered. i found all the info really helpfull and i hope you can help me out.
i have an idea for a rile that i want to make for shooting targets
Image
i dont really want to use a spinkler valve and i wnt something that hopefully wont release all the pressure in the canister all at once.
the idea behind this is that once you pull the trigger it releases the bolt and that shoots back and then foward again releasing enough air to propell a bb/pellet.

any ideas on why it wont work??
cheers
  • 0


etsmc
Private
Private
 
Posts: 1
Joined: Thu Nov 02, 2006 7:55 am
Reputation: 0

Unread postAuthor: Hotwired » Thu Nov 02, 2006 8:17 am

Well its not a very efficient design.

To work it would need some horribly powerful springs to hold back the air and it would lose power quite fast if you're thinking of getting multiple shots out of it.

The last point is because its pretty hard to economically get the high pressures you need for a multi-shot resevoir.

And its not a good idea to use unregulated co2 or HP air with improvised valves if thats what you were thinking of.

You could use a QEV (quick exhaust valve) instead if you set it up the right way to release fixed volumes of air into the barrel.
  • 0

User avatar
Hotwired
Lieutenant General
Lieutenant General
 
Posts: 2599
Joined: Fri Oct 13, 2006 5:51 am
Location: UK
Reputation: 0

Unread postAuthor: killagorrila99 » Thu Nov 02, 2006 8:22 am

Hmm I'm thinking no. I redesigned this for you. Basically its a chamber sealing valve, These will yeald much better performance than most other valves. Ok so the piston is pushed forward to seal the chamber, As the chamber is filled, the small area behind the piston is filled aswell. The pressure behind the piston holds the piston up against the chamber, Sealing it off (you may need o-rings to acomplish this) Then when the optimum pressure is reached, One squezes the blo-gun trigger and braces themselves.
  • 0

Attachments
riflekc1.gif
riflekc1.gif (3.12 KiB) Viewed 1404 times
"I'm sorry, Mr.Bush cant come to the phone right now, He's playing cleudo with Mr. Cheney And he has him in the Cupboard with a broom stick" -White house receptionist.
User avatar
killagorrila99
Brigadier General
Brigadier General
 
Posts: 1101
Joined: Tue Jul 25, 2006 2:35 am
Location: Australia.
Reputation: 0

Unread postAuthor: Urban Ninja » Sun Nov 05, 2006 2:08 am

Yer the hammer/bolt idea is good but kinda hard to achieve. I have experimanted with these for a while and have made amny many designs a lot like yours and still cannot make one.
http://www.spudfiles.com/forums/viewtopic.php?t=2570&
http://www.spudfiles.com/forums/viewtopic.php?t=2537&
  • 0

Image
To Be Feared If Not Respected
http://www.freewebs.com/urbanmisfits
Vote for Killagorilla99 AKA KillaSuperHumanRabbitOnCrackx99
User avatar
Urban Ninja
1st Lieutenant
1st Lieutenant
 
Posts: 297
Joined: Sun Jan 01, 2006 5:35 am
Location: Sydney Australia.
Reputation: 0

Unread postAuthor: Slugfoot » Sun Nov 05, 2006 9:51 am

Yes, I would advocate going for something like Killagorilla's chamber sealing design. It's simpler.
There is nothing wrong with your design - that is exactly how a lot of excellent pre-charge air rifles work, eg Logun, Quackenbush. It's just that you would have to be able to build this within very high tolerances with very good seals to get it right.
Good luck with whatever method you choose and don't forget to show us all how it works/looks. :)
  • 0


Slugfoot
Corporal
Corporal
 
Posts: 79
Joined: Sat Oct 21, 2006 4:57 pm
Reputation: 0

Return to BB/Airsoft/Pellet Gun Discussion

Who is online

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

Reputation System ©'