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BB gun valves?

A place to ask general spud cannon related questions.
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BB gun valves?

Unread postAuthor: Urban Ninja » Fri Jul 07, 2006 2:06 am

I was just looking at some of the bb guns that companies such as daisy and crossman have to offer. Living in australia, they are illegal here. I need to build my own one. Does anybody here know what kind of valve they use? Is it just a coaxial/piston? Or is it a more exotic design? I am aiming to build one like this: http://www.airgunsbbguns.com/Crosman_760_Air_Rifle_at_Cobra_Airguns_com_p/cro760b.htm.
Thanks. :D .
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Unread postAuthor: )DEMON( » Fri Jul 07, 2006 3:52 am

I will give a link I have given befor,it is very usefull as it shows the special valves that airguns use. http://www.bryanandac.com/new_page_10.htm .That crossman pump action you plan to make,use a piston for it and it will function the same.
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Unread postAuthor: Urban Ninja » Fri Jul 07, 2006 7:51 am

I love that site, it looks like theyve added a few more guns to it. I might use this old coaxial piston setup ive had for ages, it doesnt need to be too powerfull as lon as it can shoot lead balls at over 500 fps Ill be very happy.
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Unread postAuthor: Brian the brain » Fri Jul 07, 2006 4:22 pm

Look up my guns if you like airguns.I call ém big bore airguns instead of smallbore cannons.I use higher pressure but a smaller design.There;s a great link to an early airgun in my signature too.You can build a pump pneumatic airgun with spudgun technology.If you build a metal one it can hold a lot more pressure.If you can find one of those hand held CO2 "pumps" for bicycles and a small metal chamber you can make a pretty powerful gun.But remember, the bigger the bore the more force pushes the projectile.Bigger is more powerful.
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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: noname » Sat Jul 08, 2006 10:06 am

That's the exact same type of BB rifle I have. I can try taking it apart and looking at the valve and how it's triggered because I don't shoot any more (I'm not allowed to cux I accidentally shot out 4 of my neighbors windows).
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Unread postAuthor: Urban Ninja » Sat Jul 08, 2006 7:57 pm

That would be great noname, thanks. Is it just my computer or can nobody get on to the http://www.air-power.net website? Thanks a lot Brian the brain.
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Unread postAuthor: Velocity » Sat Jul 08, 2006 8:19 pm

No one has been able to get on airpower.net for a while now...
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Unread postAuthor: beebs111 » Sat Jul 08, 2006 8:23 pm

i think it either got shut down or the guy that maintained it died
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Unread postAuthor: noname » Sat Jul 08, 2006 9:13 pm

I took it apart and can't get it back together. I can't figure ouut the valve though.
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Unread postAuthor: daveo » Sun Jul 09, 2006 11:33 am

This guy here makes from scratch some of the nicest air guns I have seen. http://www.glbarnes.com/db.html
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Unread postAuthor: Urban Ninja » Mon Jul 10, 2006 3:20 am

Thanks a lot guys, this helps a lot. I might try with a coaxial for this one and maybe think about making a target rifle, small bore. Only problem is casting slugs for a small barrel. I can cast 1/4 inch with my fishing weight mold, but very small calibers I would have no idea.
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