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First Poly Piston Gun - Black Gold.
Posted: Fri Jun 06, 2008 11:47 pm
by Mitchza89
This is my latest creation. I decided to make a piston valve using entirely out of poly pipe fittings. I think the gun itself turned out quite well. I wanted to make something that could be pulled apart and stuck into a bag, but I also wanted to be able to change the barrel/chamber of the gun. It's just about finished. I had a blowgun actuating it and it worked quite well, but I want to add a modded sprinker valve and add a small stock.
Anyway, enjoy

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(It still needs a bit of a clean up...)
Posted: Sat Jun 07, 2008 12:04 am
by FordGtMan
Looks really good mitchza. The new barrel(hopefully longer) will improve performance a lot. What pressures do you run it at?
Posted: Sat Jun 07, 2008 12:59 am
by battlemonkey
Good looking, nice simple gun. What are you using for ammo

Posted: Sat Jun 07, 2008 1:17 am
by Carlman
nice one mate!!
gotta love bunnings

Posted: Sat Jun 07, 2008 4:26 am
by Mitchza89
Cheers alot guys. I plan to run it at 200+ psi so it should have a fair bit of kick. I've got a 1m barrel that I'll use marbles for. I'm happy with it

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Posted: Sat Jun 07, 2008 4:38 am
by SpudFarm
good work!
looks good

Posted: Sat Jun 07, 2008 4:40 am
by Mitchza89
Thanks mate.

Posted: Sat Jun 07, 2008 4:46 am
by SpudFarm
paintball barrel + 50psi should be safe

Posted: Sat Jun 07, 2008 4:49 am
by Mitchza89
50psi in a gun like that? That's child's play

But as far as actual paintball goes, 50psi should get me velocities close to a paintball gun.
Posted: Sat Jun 07, 2008 4:50 am
by SpudFarm
that was what i meant.. you can have a nice war

Posted: Sat Jun 07, 2008 4:52 am
by Carlman
spudfarm wrote:paintball barrel + 50psi should be safe

this stuff is poly pipe mate, its good to 500

Posted: Sat Jun 07, 2008 4:53 am
by jackssmirkingrevenge
Very nice, and at elevated pressures the performance should really be something, los damage pics por favor!
Posted: Sat Jun 07, 2008 4:58 am
by SpudFarm
ohh you don't ynderstand
if you use just 50psi you can use it just like a normal paintball gun

Posted: Sat Jun 07, 2008 5:11 am
by Carlman
spudfarm wrote:ohh you don't ynderstand
if you use just 50psi you can use it just like a normal paintball gun

lol ah k getcha now
but if you want to obliterate something you go high

Posted: Sat Jun 07, 2008 5:30 am
by Mitchza89
500psi?! Damn... I didn't know this stuff was rated that high. I saw a sticker on a piece of poly (not the one I got) but it said only 1750kpa

I mean that's bloody terrible...
I've got a coax bb gun that uses a 600mm piece of 1/2'' poly, and it's holding perfectly at 300psi so I'm not sure
Cheers for all the comment's lad's
