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nail gun semi auto airsoft gun

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Unread postAuthor: Dave_424 » Wed Aug 20, 2008 2:00 pm

btw I am also from the Uk
I wouldn't ever shoot someone with this sniper, I just enjoy shooting cans and destroying things lol

I wouldnt use it in airsoft because I didnt even do it when I had an airsoft gun, I just shot cans and other stuff

JSR do you still have that nail gun? could you tell me the make and model please and a rough cost

thenks dave
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Unread postAuthor: jackssmirkingrevenge » Wed Aug 20, 2008 2:05 pm

Dave_424 wrote:JSR do you still have that nail gun? could you tell me the make and model please and a rough cost


Yep, but it's back home. I think the make was "Norita" and it cost less than £30. Anything similar to this should suit your purposes as it's just the right size, look up "brad nailers".
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Unread postAuthor: Dave_424 » Wed Aug 20, 2008 2:08 pm

thanks for the info * skuttles off to ebay to have a gander* :)

Edit: found this http://cgi.ebay.co.uk/18-GAUGE-BRAD-NAI ... 286.c0.m14
Does this look promising?

thanks dave
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Unread postAuthor: frankrede » Wed Aug 20, 2008 2:37 pm

QEV?
Inefficient and making honking noises?
BWAH HAHA
You can buy pushbutton valves off mcmaster that would work great with a small 1/4" qev.
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Unread postAuthor: Dave_424 » Wed Aug 20, 2008 2:44 pm

well my problem was that with a slow pull of the blowgun and not a normal squeeze meant that it would honk and thus the bb would be underpowered

this is because a normal quick squeeze often jerks the gun and makes me miss the target ( a can) at 50ft

I have also wanted to make an airsoft gun from a nail gun for a while but have never had the confidents to buy one and find out if it would work, this is why I have posted here

thenks for all of the help Dave
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Unread postAuthor: jackssmirkingrevenge » Wed Aug 20, 2008 2:46 pm

That looks great, just open it up, remove the striker piston and you have yourself a powerful piston valve - all you have to do is figure out a way to bodge a barrel attachment. I went for high strength adhesives, if you have access to a machine shop however there are more elegant solutions ;)
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Unread postAuthor: Dave_424 » Wed Aug 20, 2008 2:50 pm

thanks
what do you think about drilling and tapping the hole where the striker comes out of and adding a 8mm straight compression to some 8mm aluminium pipe with an id of 6mm?

thanks dave
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Unread postAuthor: jackssmirkingrevenge » Wed Aug 20, 2008 2:57 pm

That works for single shot, though the space previously occupied by the striker is now dead space - why not extend the pipe into the sleeve and fill the space with something? I used - well, not a hard guess ;p
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Unread postAuthor: Dave_424 » Wed Aug 20, 2008 3:02 pm

ok then i should

1. remove the striker
2. resize the striker hole to let an 8mm pipe pass through
then fill the surrounding areas with epoxy

btw where do you get your epoxy from
howmuch is there and for what price??

thanks dave
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Unread postAuthor: jackssmirkingrevenge » Wed Aug 20, 2008 5:12 pm

I get it from yacht supply stores, not cheap as it's usually several kg per pack but it goes a long way.

This would be top brand-name stuff, but you'll find more than adequate substitutes for much cheaper.
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Unread postAuthor: Dave_424 » Wed Aug 20, 2008 5:17 pm

Thanks for the links but do you have any other ideas about filling that dead space?

thenka Dave
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Unread postAuthor: jackssmirkingrevenge » Wed Aug 20, 2008 5:28 pm

You don't even have to fill the space, just have a disk blocking the "breech" end of the striker piston tube. This is basically what I did with mine. It could be anything strong enough, even a wooden disk or washer epoxied in place with Araldite or similar. Just make sure that any surfaces are roughened and cleaned beforehand.
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Unread postAuthor: Dave_424 » Wed Aug 20, 2008 5:31 pm

thanks for the info I might just be able to lathe a shiny disk that would fit in there nicely :):)

btw what drawing program do you use?

thanks Dave
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Unread postAuthor: jackssmirkingrevenge » Wed Aug 20, 2008 5:34 pm

Anticlimactic as it sounds, I'm a fan of MS Paint ;) and Jasc Animation Shop for animations.

Random tip, a few small holes in the barrel section that fits inside piston tube and you've got yourself an integral suppressor - though aside from the cool factor of being an integral suppressor, it will probably just cut down on power and not make the launcher any quieter in practical terms :D
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Unread postAuthor: Dave_424 » Wed Aug 20, 2008 6:49 pm

I love paint
sounds like a good idea but Im not really bothered about sound :D

looks like there will be a new build log for me then, shouldnt be too hard to do (he says in the earlier stages)

Thanks Dave
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