Posted: Tue May 08, 2007 9:35 pm
What with?origin unknown wrote:Yep, sure did.Hotwired wrote:Did you bore out the tees to get the barrel and chamber through them?
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Posted: Tue May 08, 2007 9:41 pm
I use a chainsaw file to remove the stops in copper couplers. Quick and easy and the inside can be polished with a flap sander.
Posted: Tue May 08, 2007 9:51 pm
A cylindrical file, and some ultra fine grit sandpaper to smooth it out.Hotwired wrote:What with?origin unknown wrote:Yep, sure did.Hotwired wrote:Did you bore out the tees to get the barrel and chamber through them?
Posted: Tue May 08, 2007 9:55 pm
o.0
That must've taken forever if they're made the same way as the one here are - a thicker middle section to block pipe going further in.
I took a couple of looks at how thick the middle copper section was and considered how long it would take to file away and cut it out instead
That must've taken forever if they're made the same way as the one here are - a thicker middle section to block pipe going further in.
I took a couple of looks at how thick the middle copper section was and considered how long it would take to file away and cut it out instead
Posted: Tue May 08, 2007 9:59 pm
I thought the exact opposite, thinking that it would be easier to file away rather than cut.Hotwired wrote:I took a couple of looks at how thick the middle copper section was and considered how long it would take to file away and cut it out instead
Posted: Tue May 08, 2007 10:02 pm
how fast do you think this shoots? i know in the original post you said you didnt know, but could you give me a rough estimate?
Posted: Tue May 08, 2007 10:06 pm
Carrots dont weigh much. It probably shot the carrot at 140-250fps.
Posted: Fri Dec 14, 2007 1:52 am
Just saw this cannon, very nice copper cannon 
Is it limited to 200psi because of the sprinkler valve? One more thing, why no damage pics yet?
Is it limited to 200psi because of the sprinkler valve? One more thing, why no damage pics yet?
Posted: Sat Dec 15, 2007 1:41 am
^^ im pretty sure its a qev.
Posted: Sat Dec 15, 2007 1:53 am
Well, as cwazy has pointed out, it's a QEV.Novacastrian wrote:Is it limited to 200psi because of the sprinkler valve?
Most QEV valves will happily go much higher than that, probably a limitation from the source is more likely.
Posted: Sat Dec 15, 2007 2:30 am
Those QEV's are only rated for 150psi, like a sprinkler I doubt they would go a whole lot higher past 200psi.
Posted: Sat Dec 15, 2007 8:23 am
Havent people on this forum used QEV's past 250?
Im sure they can take more than 150, they are made out of solid aluminum!!!!!
Im sure they can take more than 150, they are made out of solid aluminum!!!!!
Posted: Sat Dec 15, 2007 10:35 am
Its mainly to do with how tough the sealing material is.
The metal body is highly unlikely to fail but the piston/diaphragm in QEVs are made of rubber or rubbery plastic and thats what'll give way first.
Some which are sold at 150psi are used at 300psi.
The metal body is highly unlikely to fail but the piston/diaphragm in QEVs are made of rubber or rubbery plastic and thats what'll give way first.
Some which are sold at 150psi are used at 300psi.
Posted: Sat Dec 15, 2007 2:47 pm
That thing is cool!!!!!!! You should find a barrel that is thicker,like a brass pipe nipple...You can find custom sizes on plumbingsupply.com or onlinemet***.com....I would give you the rest of the email address but I got in trouble last time I recommended a site....other wise its cool..I was thinking of making a gun using a qev,but I was not sure how they worked...I was thinking they worked like solenoid valves somewhat????
Posted: Sun Dec 16, 2007 5:35 pm
I accidentally ruined the QEV that I used in this cannon and bought a new QEV. Here is the link to the cannon I made with the new QEV: http://www.spudfiles.com/forums/wwr-win ... t9985.html
The new QEV is like the kind Hotwired was saying that can take 300psi(Ragnarok's HEAL cannon) even though its rated to 150psi.
The new QEV is like the kind Hotwired was saying that can take 300psi(Ragnarok's HEAL cannon) even though its rated to 150psi.