SpudFiles

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!!

Really beautiful! Hope you can make a video of it in action!

Incredible!! Do you muzzle load it?

Great gun.

Are you able to show a drawing of your hammer valve design, thanks

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:

Incredible launcher! the detailing on the plate at the rear is really nice, how long did it take you?

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.

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:





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

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.

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

Oui exactement du noir de fumé, apliqué à la bougie comme tu l'as indiqué.

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

Thank you!

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!!

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?

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:

Now that is a beauty!