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pneumatic sniper

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: sniper hero » Mon Mar 24, 2008 6:37 am

ok thanx
and psycix can I ask wich country you're from?
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Unread postAuthor: sniper hero » Thu Apr 03, 2008 9:54 am

ok since a few weeks having no time to build further I got some time and I still have some problems
I want to solder a piece of pipe to the side of a bigger pipe will this work ?
I have got the valve but still need to make a piston.
I have got the adater for the barrel and only have to solder that(that won't give problems)
here are some pics
battery is to hold it in place
valve and pipe are connected by tube
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Attachments
CIMG1034.JPG
the valve in position
CIMG1035.JPG
pipe to pipe that needs to get soldered(it will be copper but I need to buy that piece) (28mm)
CIMG1037.JPG
barrel attached
CIMG1039.JPG
whole gun for now
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Unread postAuthor: pizlo » Thu Apr 03, 2008 12:26 pm

Good luck with your piston, In my opinion you should have made the valve first. But hopefuly you will get lucky.
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Unread postAuthor: sniper hero » Thu Apr 03, 2008 1:20 pm

how do you mean make the valve first ?
I have the problem that I can't find cheap epoxy :(
I found some O rings so that will help
but I tried to make a piston from hot glue but when it was dry I couldn't get it out of the tube :shock:
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Unread postAuthor: psycix » Thu Apr 03, 2008 4:05 pm

I know, I cant find any epoxy in holland either.
According to Brian the brain you should find it in car-parts-speciality shops under the name Staalplamuur.

Did you use anything like grease or release agent to before you casted the hot glue in?
If you didnt, DOH ofcourse you cant get it out. :P

Why not make an improvised piston from things like endcaps or just anything that fits in snuggly.
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Unread postAuthor: sniper hero » Fri Apr 04, 2008 9:42 am

yes I used something to stop it from sticking in but it didn't work so I will try to improvise.
the only problem is that it has to fit airtight in my design because the pipe are bothe 28mm(26mmID)
do you know anything from 26mm that can be used as piston?
and I will search for staal plamuur :)
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Unread postAuthor: beans » Sun Apr 06, 2008 2:57 pm

are you almost done with this? if you get it to work, and work well, let us know, I'm interested in making one.
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Unread postAuthor: sniper hero » Sun Apr 06, 2008 3:12 pm

yes i did the most and I will buy tomorrow the last part(i hope it's the last :D )
if it's finished I will make a list of materials used
but I can tell you it's quite expensive
but read the topic "funding" for peoples oppinion about money for spudding.
and I will use metal epoxy to join the pipe to pipe connection
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Unread postAuthor: ammosmoke » Sun Apr 06, 2008 3:29 pm

Woah, why do you have so many different metals together??

EDIT: I see you don't have a mix now, but I can't delete this post GAAAAAH!!!
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Unread postAuthor: psycix » Sun Apr 06, 2008 3:37 pm

So you did find your staalplamuur epoxy?
Where? :)
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Unread postAuthor: Antonio » Sun Apr 06, 2008 4:18 pm

psycix wrote:So you did find your staalplamuur epoxy?
Where? :)


Good one, and whats the price? Nice looking gun btw
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Unread postAuthor: Brian the brain » Mon Apr 07, 2008 10:34 am

Yep.They take you to the cleaners in Holland when it comes to pipe and fittings.You pay top...euro

That connection of the blowgun will give you a lot of trouble.
It would be better to connect it from that endcap and curve it back up.

What has it cost you so far?
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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!

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Unread postAuthor: sniper hero » Tue Apr 08, 2008 8:54 am

I didn't find staal plamuur but very expensive epoxy.
I thougt it would be better to make a small pipe into the pipe that comes from the chamber so the piston is bigger than the pipe so it seals better :idea:

and from cap to valve sounds better but the only problem is how to pump it then?
o costs are btw: 66.40euro :shock: i'm only 14 so that very much for me
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Unread postAuthor: psycix » Tue Apr 08, 2008 9:10 am

66.40 euro for how much? Seems expensive, but depends on the thing you get.
If you bought a whole shipload for 66.40 its not expensive :D
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Unread postAuthor: sniper hero » Tue Apr 08, 2008 10:43 am

just all the things you see in the pictures and soldering stuff.
but do you think it's better to make the smaller pipe in the pipe that comes from the stock/chamber?
.___ _______
......\/ _|____| I hope you reconise the gun



I mean the pipe that is showed above with: /
for my idea

ignore the dots
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