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SG PaintBall Rifle

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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SG PaintBall Rifle

Unread postAuthor: MrCrowley » Sat Dec 09, 2006 11:15 pm

My New PaintBall rifle: (SG=Schutzgewehr(Guard gun :wink: )

Chamber:1kg dry powder fire extinguisher
Barrel:100cm long 15mm dia PN18 paintball barrel
Valve:25mm sprinkler valve pneumatically modded.
Ammo:Paintballs ofcourse :lol:
PSI:60-115
Gauge:0-2000kpa
Fill via pop-in schrader
Pretty much self explanotry(sp?)
Now for pics!

Full Picture:
Image

Back:(putty on schrader is to stop leaks at 120psi)
Image

Valve:
Image

Damage Pics at 60psi:

Cardboard Box - 1 hole at 40psi
Image

1/4" jib board - 3 holes at 60psi(I manged to shoot through two layers at 115psi 5min ago)
Image




P.S No, the chamber is not bent it just looks like that because of un-even surface. More damage pics will be up soon(coke can,aerosol can,glass etc)
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Last edited by MrCrowley on Sun Dec 10, 2006 2:01 am, edited 1 time in total.
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Unread postAuthor: Killjoy » Sat Dec 09, 2006 11:39 pm

Nice gun, any idea how fast the paintballs are going?
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Unread postAuthor: mark.f » Sun Dec 10, 2006 12:14 am

Nice gun, but what's with all the electrical tape around the Schrader valve?
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Unread postAuthor: Flying_Salt » Sun Dec 10, 2006 12:33 am

He said it stopped the leaking at high pressure...

Wow i sounded like a noob...
Anyway, awesome paintball gun. People like you make me wish I had an air compressor
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Unread postAuthor: Recruit » Sun Dec 10, 2006 1:20 am

Back:(putty on schrader is to stop leaks at 120psi)
Its putty not tape and he said that near the top.
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Unread postAuthor: King_TaTer » Sun Dec 10, 2006 1:33 am

nice gun. thats i modded sprinker valve correct? ever try shooting other stuff?. oh and what is the red air chamber made out of? it looks to be metal... i dont know ,oh well. :?
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Unread postAuthor: MrCrowley » Sun Dec 10, 2006 1:56 am

yup it is modded, the chamber is a fire extinguisher.

ive shoot a sabotted AA battery through a can of water,3layers of jib and cardboard box at the same time(115psi)

and ive done better with a caulking dart using a spade drill bit instead of a nail.

here are some pics using a nail:
Image
Image


Ill post new pics when spray painted all red.Is it ok to spray paint the sprinkler valve
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Unread postAuthor: Recruit » Sun Dec 10, 2006 2:45 am

Cant see why you shouldnt, unless you get it in the valve.
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Unread postAuthor: experament_u2 » Sun Dec 10, 2006 3:03 am

good old liquid nails comes in usfull everytime nice gun the chamber looks very nice (exept fot the putty) but hey you win some you lose some
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Unread postAuthor: MrCrowley » Sun Dec 10, 2006 3:20 am

yeah, I sacrifced looks for an extra 20-40psi

edit:i'm spray painting this gun so the putty wont be too bad.
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Unread postAuthor: watto » Fri Dec 15, 2006 4:53 pm

how did you manage to get the fire extinguisher to fit on the valve, just luck or did you have to drill a fitting into it. Also does it make no difference if you leave the soleniod part in the valve because most people seem to glue over it.
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Unread postAuthor: MrCrowley » Fri Dec 15, 2006 5:13 pm

I used a fitting from the inside of the FE that sucked up the powder and it happened to fit the threads and on the other end of it was 1/4" threads so it was luck really, it may differ from other brands. I left the solenoid in as it made no difference,it was sure to stop the leaks and its a nice 'palm' rest on your hand so your finger isn't always on the trigger and it stops me from accidently triggering the gun.
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Unread postAuthor: schmanman » Sat Dec 16, 2006 8:58 pm

nice! just curious, since it is probably called something else here in the states, what is jib board?
how thick is it?

I like the chamber. with a welder, we need to see some all steel cannons from you. :wink:
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Unread postAuthor: PVC Arsenal 17 » Sat Dec 16, 2006 10:07 pm

you know this has really been gettin to me...

how do you pronounce "schmanman"
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Unread postAuthor: MrCrowley » Sat Dec 16, 2006 10:10 pm

lol,I made a new copper barrel so its now all metal(except the valve) and it sports 2 FE's as chambers.
Jib is like dry wall stuff, if you have a hole in your wall you put it where the hole is so its smooth and flows with the wall and there are no dents and then you put grouting crap over it and then paint it. Its pretty hard to break in half as its built in layers and has loads of crap on the inside.
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