The BFS - Poly Piston gun - COMPLETE!
Thanks alot everyone Sniper hero, when the gun is plugged in, I just stick my foot over the ball valve handle or something. If I was using a hose to attatch it, It'd be a totally different story.
What do you guys think? Keep it sawn-off or flip the chamber around and make an ergonomic "rifle" style gun?
What do you guys think? Keep it sawn-off or flip the chamber around and make an ergonomic "rifle" style gun?
- Gippeto
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Hey, if we're voting, then I vote for the ergonomic "rifle".
How many times can I vote? 2, 4, 6, ...
I actually got to work on the co-ax today (a whole 20 min). I'll update the thread, and put up a progress pic, probably this weekend.
How many times can I vote? 2, 4, 6, ...
I actually got to work on the co-ax today (a whole 20 min). I'll update the thread, and put up a progress pic, probably this weekend.
"It could be that the purpose of your life is to serve as a warning to others" – unknown
Liberalism is a mental disorder, reality is it's cure.
Liberalism is a mental disorder, reality is it's cure.
great work man i like a gun against my sholder!!
Breaking stuff with a Big Bang haven’t been this much fun!!!!!!!!!!
http://www.spudfiles.com/forums/bh-2400 ... 14078.html
http://www.spudfiles.com/forums/bh-2400 ... 14078.html
looks like the one im working on will post soon
Breaking stuff with a Big Bang haven’t been this much fun!!!!!!!!!!
http://www.spudfiles.com/forums/bh-2400 ... 14078.html
http://www.spudfiles.com/forums/bh-2400 ... 14078.html
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- Private 2
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How safe do you feel taking poly pipe to 300psi? Its just that I've never seen any pressure ratings on the stuff at Bunnings and from a while ago I thought the general consensus was it was safe for less pressure than 300. If its safe for 300 I am so using it on a gun instead of pvc. Don't suppose we know how poly fails either, ie whether it shrapnels or just tears?
Thanks
Thanks
How are ya mate,
I reckon you'd be fine taking the poly up that high. I've taken that gun to 225psi with no problems what so ever I've got some 25mm aluminium tube sleeved inside the poly to strengthen it up even more. I'd assume that it would just tear if it was to fail. I just got a fridge compressor so I'll do some tests on various poly pipe at extreme pressure and see how it handles.
All the best,
Mitch.
I reckon you'd be fine taking the poly up that high. I've taken that gun to 225psi with no problems what so ever I've got some 25mm aluminium tube sleeved inside the poly to strengthen it up even more. I'd assume that it would just tear if it was to fail. I just got a fridge compressor so I'll do some tests on various poly pipe at extreme pressure and see how it handles.
All the best,
Mitch.
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- Private 2
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Ahhhh yeh, the aluminium sleeving, may have to give that one a burl. It will be good to see some high pressure poly testing, would give us a general idea of its safety.
Thanks very much.
Thanks very much.
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- Private 2
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- Joined: Thu May 04, 2006 5:53 am
Atm I'm trying to work out a galvanized barrel sealer, the obvious problem is the inside of the gal T is really rough so I was thinking of just sleeving some pvc inside it (15mm pvc is a pretty good fit in 20mm galvanized pipe, at least i think its 20mm, can't remember off hand) for the piston to run smoothly in. I know I probably should use copper or pvc but I have this stuff in the shed already so I figure why not use it. So I'm just trying to get all the parts and assorted junk together and sorted, probably take some time what with a lack of funds but it may get done...eventually.
She should be good. The T shouldn't be the problem, it should be the piston housing (like a nipple behind the T). I use gal a hell of alot, and I found that using a brass nipple/fitting as a piston housing, it's absolutely great... and it cost's bugger all
Hey bud can you post your piston to
Breaking stuff with a Big Bang haven’t been this much fun!!!!!!!!!!
http://www.spudfiles.com/forums/bh-2400 ... 14078.html
http://www.spudfiles.com/forums/bh-2400 ... 14078.html