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Homemade air rifle

This area is for the discussion of BB or airsoft sub machine guns, and or other small arms such as pellets.
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Homemade air rifle

Unread postAuthor: jaffe » Thu Jun 14, 2007 2:52 pm

I'm wanna show my skils to a friend of my, so why not make a air rifle. I'm done with the technical drawing, only the degsin. Now are there two problems: dus somewhone now wich materials are the best for the barrel, bolt, en how can I make a magazine without losing air power?
Comments welcom.
greetings from the Dutch
Jaffe
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The technical degsin.
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Unread postAuthor: jackssmirkingrevenge » Thu Jun 14, 2007 8:19 pm

it will work but not worth the effort, power will be very low and you're better off just buying an airsoft pistol. Make a pneumatic instead ;)
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Unread postAuthor: Hawkeye » Thu Jun 14, 2007 8:37 pm

I guess you could use a ramrod to cock the piston mechanism rather than a break mechanism or a system where you pull the piston by a "slide". That might enable a more powerful spring to be used as you could bear down with your body weight.
You would need a slight restriction at the breech so that you don't push the ammo into the cylinder when it is actually loaded.
You would want a very reliable trigger mechanism and possibly a safety if you're going to push ammo down a cocked spring piston gun.
A barrel that unscrews to load would be better.
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Unread postAuthor: Redcoat » Sun Jun 17, 2007 1:54 am

ah yes a spring powered bb gun i've tried to make one unless you can have a spring with like 100 pounds a least of thrust behind it your thing is just going to do what it did with mine.





Go 10 feet.

Edit- I don't want to quelch your spirits though i was like you once along time ago.(three months ago to be exact) and i kept on posting designs and asking if they worked.Frankly it's good to be on the teaching end now.Good luck to you Jaffe and...........

Happy Spuddin'
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Poo.
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Unread postAuthor: TurboSuper » Sun Jun 17, 2007 1:29 pm

My best suggestion is to build a standard pneumatic with interchangeable barrels. You could have an extemely long one with a small bore for shooting BBs, or a shorter one with a larger bore for shooting bigger stuff. The length of the bore should maintain a 2:1 chamber-barrel ratio, by volume.

On an episode of Mythbusters, they cut a small hole in the base of the barrel, and slid some SDR pipe over it to make an easy-reload system. Other than that, I would just buy a $40 air rifle if you want semi-automatic functionality.
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Unread postAuthor: jaffe » Tue Jun 19, 2007 10:03 am

I have changed my plans and building a pneumatic. I want to make a simple valve so i begon drawing, wil this valve work good? I dont have a large collection of tools so i want to keep it simple. I have orderd a piece of very thick wood for the design :P .
greetings from the dutch.
Image[/img][/url]
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Unread postAuthor: jackssmirkingrevenge » Tue Jun 19, 2007 10:12 am

it will work, I assume one would fire it by pulling on the yellow portion? still, it's not going to be terribly convenient to use or very efficient, consider building a piston valve or buying a QEV.
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Unread postAuthor: lukemc » Tue Jun 19, 2007 10:14 am

umm your not going to get a very good seal from just a wood suface however you could cover it in rubber and it would work
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Unread postAuthor: jaffe » Tue Jun 19, 2007 2:30 pm

The problem is that the valve must be smal, and I have not a great budget :roll: .
greetings from the dutch
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Unread postAuthor: Brian the brain » Tue Jun 19, 2007 3:08 pm

Dutch huh??I love to piss these guys off!!

Ik ben al een tijdje actief op dit gebied, en vrij bekend ( okee, ik ben een held) hier op deze site.
Mijn advies: maak een diapragma buks.
Je kunt dan gewoon loodgieters materiaal gebruiken en hoeft geen "onmogelijke"toeren uit te halen om een krachtige en leuke buks te maken.
Gebruik de search knop bovenin en zoek pirate. Je zult dan mijn vrij eenvoudige pistool zien , eenvoudig te maken en toch zeer krachtig.Om daar een geweer versie van te maken, hoef je alleen maar langere pijpen te nemen.
Hoe groter het caliber, hoe krachtiger het wordt.

zoek ook maar eens op "sawed-off" en "OVERKILL"
dan begrijp je dat ik niet uit mijn nek lul...Ik doe aardig mee hier.
Kijk verder wat rond in de Pneumatic section en lees VOORAL de spud-wiki ( knop bovenaan).Het is de meest waardevolle gids voor dit soort dingen.
Greetz, BTB
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Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: jaffe » Wed Jun 20, 2007 10:08 am

Beste BTB,
ik heb mijn kraan al gemaakt en het werkt erg goed(voor de eerste keer), ik moet alleen nog een veer monteren, want de piston schoot uit de kraan dwars door de muur heen :twisted: . Fijn dat er ook jode... ik bedoel hoolanders zijn :D
Jaffe
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Unread postAuthor: jaffe » Sun Jun 24, 2007 3:14 pm

I have maded a design for the gun :P . I have made the most things such as the valve, the magazine. The hardest part is the let the magaine fit good in the gun, I dont want that my gun is filled with BB's :D .
greetings from the Dutch, Jaffe
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