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Hammer valve winchester.

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Hammer valve winchester.

Unread postAuthor: s0ka » Tue Oct 22, 2013 6:00 pm

Hy everyone, i'm from patator forum the french spudgun forum hope you remember me . I'm still making spudguns and i've managed to make one wich works great, many shots nice acuracy and great power (for airsoft).

So its a hammer vavle gun, with a c02 fire extinguisher valve, 8mm hole, very effective.
I can have betwen 40 and 60 shot with this big cooper pipe, hammer valve is great design i should have made one before.
I can regulate the power by turning the screw, so i can shot when the pressure is high and low with the same projectile speed. I mean you can shot at the end when the pressure is low, without loosing all the air in one shot, like if you had a powerfull spring to shot at high pressure.
Ask me if you have questions!!


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Re: Hammer valve winchester.

Unread postAuthor: air_dannon » Tue Oct 22, 2013 8:33 pm

Really beautiful! Hope you can make a video of it in action!
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Re: Hammer valve winchester.

Unread postAuthor: Gun Freak » Tue Oct 22, 2013 8:44 pm

Incredible!! Do you muzzle load it?
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Re: Hammer valve winchester.

Unread postAuthor: Lazyboy » Tue Oct 22, 2013 9:49 pm

Great gun.

Are you able to show a drawing of your hammer valve design, thanks
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Re: Hammer valve winchester.

Unread postAuthor: s0ka » Wed Oct 23, 2013 2:48 am

Thanks you all!
Air_dannon , i will make one video when my pistol hammervalve will be finished!!

Gun freak yes its a muzzleloader, the problem is with a loading system will be i will loose bb more quickly and the 0.28 are expensive!
I saw your videos on youtube i like your hammer valve gun to.

Lazyboy, i think i've got a picture of the valve i will check that.

Edit, you can see the valve here:
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Re: Hammer valve winchester.

Unread postAuthor: mark.f » Wed Oct 23, 2013 3:25 am

Incredible launcher! the detailing on the plate at the rear is really nice, how long did it take you?
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Re: Hammer valve winchester.

Unread postAuthor: s0ka » Wed Oct 23, 2013 4:51 am

mark.f : hi thanks, it took me two afternoon to do the acid engraving and the oil blueing. As you can see that is not right symetric and perfectly smooth because that's my first atempt doing these proces, but that ad a steampunk finish.
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Re: Hammer valve winchester.

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Re: Hammer valve winchester.

Unread postAuthor: jackssmirkingrevenge » Wed Oct 23, 2013 8:14 am

Look who's still around!

Fantastic job, I really like the etching :) looks pretty deep, what acid did you use?

You really should consider a girandoni style breech loading mechanism... Here's a good improvised example:

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More on the Girandoni: http://www.beemans.net/Austrian%20airguns.htm
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Re: Hammer valve winchester.

Unread postAuthor: s0ka » Wed Oct 23, 2013 11:24 am

jackssmirkingrevenge,
I used nitric acid, i've let it in the bath for 5min it's quick but the preparation is long, you have to put varnish and black of smoke and let it dry, then you can draw what you want.

Yeah for the girandony it's a very good idea, i will probably do that.
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Re: Hammer valve winchester.

Unread postAuthor: jackssmirkingrevenge » Wed Oct 23, 2013 11:31 am

s0ka wrote:black of smoke


Étiez-vous référant à cette?

http://fr.wikipedia.org/wiki/Noir_de_fum%C3%A9e

Comment est-elle appliquée? Tenez-vous la pièce dessus d'une bougie :D
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Re: Hammer valve winchester.

Unread postAuthor: s0ka » Wed Oct 23, 2013 2:46 pm

Oui exactement du noir de fumé, apliqué à la bougie comme tu l'as indiqué.
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Re: Hammer valve winchester.

Unread postAuthor: Gun Freak » Wed Oct 23, 2013 4:10 pm

Gun freak yes its a muzzleloader, the problem is with a loading system will be i will loose bb more quickly and the 0.28 are expensive!
I saw your videos on youtube i like your hammer valve gun to.

Ah, makes sense :D

Thank you! :D
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Re: Hammer valve winchester.

Unread postAuthor: bravootome » Thu Oct 24, 2013 12:08 pm

s0ka wrote:Hy everyone, i'm from patator forum the french spudgun forum hope you remember me . I'm still making spudguns and i've managed to make one wich works great, many shots nice acuracy and great power (for airsoft).

So its a hammer vavle gun, with a c02 fire extinguisher valve, 8mm hole, very effective.
I can have betwen 40 and 60 shot with this big cooper pipe, hammer valve is great design i should have made one before.
I can regulate the power by turning the screw, so i can shot when the pressure is high and low with the same projectile speed. I mean you can shot at the end when the pressure is low, without loosing all the air in one shot, like if you had a powerfull spring to shot at high pressure.
Ask me if you have questions!!


Image

Image

Image

its a beuty, i would of made that stock much more interesting and put the airtank closer to the barrel, did you made those motives on the metal plate where you screw the stock, if yes, how?
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Re: Hammer valve winchester.

Unread postAuthor: Gippeto » Fri Oct 25, 2013 7:43 pm

jackssmirkingrevenge wrote:You really should consider a girandoni style breech loading mechanism...


As I read, this is EXACTLY what was going through my mind. :)

Well done! :headbang: :occasion5: :thumbup: :thumbup:
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Re: Hammer valve winchester.

Unread postAuthor: Brian the brain » Mon Nov 04, 2013 1:15 pm

Now that is a beauty!
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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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