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Vintorez wannabe 2.0 (hammer valve)

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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Vintorez wannabe 2.0 (hammer valve)

Unread postAuthor: bahur47 » Mon Jan 16, 2012 6:23 pm

Hello again, this is the new version of my previous gun:

forums/vintorez-wannabe-t22610.html

This time it is multi-shot and it is breech-loading. The wood, the barrel and the air tank are the same, as you can see. The tank is slightly changed ( the ugly welding at the end is gone :D ). The stock is still detachable.
The hammer valve is very simple, but it works. I tried to make the BTB counterbalanced design, but I failed miserably. If I find some suitable parts I will try again :D . During the building of the gun I discovered the magical world of the polyester raisin and fiberglass and I used them to fixate the rail and the safety valve together and to cast holders for the hammer tube. I hope in next projects i'll find some more applications for it. Compared to the first version this one is less powerful, but the trigger pull is much better. Now i need a manometer and a fridge compressor. If I manage to achieve decent power i might buy a cheap 6.35 barrel, it will spare me lots of lead casting and will improve accuracy ( now my barrel is slightly bent ). I found spare turkish barrels for 20 euros.

Sorry for the retarded diagram on the last picture, but that was the only way to show you the inner parts , because I borrowed a camera from a friend and i had no time to disassemble the gun.

I'll be happy to hear your thoughts and ideas for improvement.

And again - sorry for my broken english.
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Attachments
100_1327.JPG
1
100_1331.JPG
100_1335.JPG
100_1331dsfr.jpg
this is only the corpse of the safety valve
pu3.jpg
update
Last edited by bahur47 on Fri Dec 20, 2013 6:22 am, edited 1 time in total.
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Unread postAuthor: Gun Freak » Mon Jan 16, 2012 7:18 pm

SWEEET!!! Bless us with a video :wink:
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Unread postAuthor: warhead052 » Mon Jan 16, 2012 8:13 pm

What sort of barrels are the turkish ones? I am turkish as well as american my self, so it interests me. Nice job otherwise!

And I second Gun Freak.
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Unread postAuthor: Crna Legija » Tue Jan 17, 2012 12:17 am

warhead052 wrote:I am turkish as well as american my self, so it interests me.


does that mean you hate your self? :lol:


looks great you should paint the epoxied parts with brown paint to make them look more like wood.
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Unread postAuthor: wyz2285 » Tue Jan 17, 2012 3:35 am

Great work, really nice!
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CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Unread postAuthor: bahur47 » Tue Jan 17, 2012 4:34 am

warhead052 - I'm from Bulgaria and here, in almost every online weapon store there are HATSAN 125 barrels for 22 euros and HATSAN AT 44 for 40 euros ( 125 is for break barrel, at44 is for pcp)

At the moment i cant make video, because i don't have camera :(
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Unread postAuthor: warhead052 » Tue Jan 17, 2012 11:46 am

Crna Legija wrote:
warhead052 wrote:I am turkish as well as american my self, so it interests me.


does that mean you hate your self? :lol:


Why would I hate my self?


Bahur, Those barrels aren't bad, I had a hatsan before I joined spudfiles, and before I even really knew what it was. Shame my mom threw it out.
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Unread postAuthor: wyz2285 » Tue Jan 17, 2012 3:14 pm

How much pressure do you get with that homemade pump?
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CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Unread postAuthor: Brian the brain » Tue Jan 17, 2012 3:24 pm

Looks good there!

The hammervalve you're using should be more than fine for a 6.35 barrel.

Seems like a good homemade airgun to me!
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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: bahur47 » Tue Jan 17, 2012 6:20 pm

I dont have any idea to what preassure my pump is capable of, but after 100-120 strokes the check valve starts to leak. Today my hammer spring broke so I have to find another one that fits , or make one.

Also I have a question - what is the standard thread for manometers and can it be adapted to 1/2 ? ( im not sure if there is a standart manometer thread but i have 3 broken ones and they are all with the same thread - it looks like this

http://img.hisupplier.com/var/userImages/2008-03/01/antonynam_091353.jpg )

finally - im glad you like it

:)
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Unread postAuthor: jackssmirkingrevenge » Wed Jan 18, 2012 1:09 am

Nice, for some reason it reminds me of this one: http://www.spudfiles.com/forums/a-full- ... 21714.html
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Unread postAuthor: Schematicsman » Mon Jan 23, 2012 9:03 am

Gorgeous gun! I must say I have always wanted to do a hammer valve gun like this.

Whats the odd looking plumbing part labeled on the bottom picture?
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Unread postAuthor: jackssmirkingrevenge » Mon Jan 23, 2012 9:25 am

looks like a water heater safety valve: http://www.tjskl.org.cn/products/czaff9 ... 90c46.html
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Unread postAuthor: Schematicsman » Mon Jan 23, 2012 9:29 am

Ahh, I thought it looked familiar. Any reason why this is useful here? It looks like it was used as a Tee, I'm wondering if I'm missing something.
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Unread postAuthor: bahur47 » Mon Jan 23, 2012 2:07 pm

I didn't bought it specially for this purpose, just spot it lying in the plumbing box , it was broken and i thought " hmm this might work" . I used it because I needed a part with 1 female and 1 male end , also I thought this upper part would be suitable to fixate the loading mechanism on it. Now I realize I can use valve extension like this http://www.westradiators.co.uk/radiator-valves/RVE-RIG-50-C-LPU.jpg , to put a hole in it and connect it with the loading part , then cast a resin block around it for sturdiness and it would look better.
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