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My New Gun
Posted: Wed Jan 30, 2008 1:32 pm
by pnematicrookie
this is my new gun...all i did was take my last gun apart and just used spare parts i already had....for some reason i can only get it to like 105 psi, i figured it would get way higher than that because of all the chamber i have. any suggestions?
Posted: Wed Jan 30, 2008 4:13 pm
by STHORNE
what happens when you increase the pressure past 105psi?
if it produces leaks, i suggest that you cover all joints and fittings with epoxy or JB Weld.
i had the same problem with my copper pneumatic and JB Weld fixed 'er right up! now instead of 60psi, i can go 120+
hope i helped
--sthorne
Posted: Wed Jan 30, 2008 4:16 pm
by pnematicrookie
yeah its probably a leak somewhere, ill try that tho...thanx
Posted: Wed Jan 30, 2008 4:18 pm
by STHORNE
sure....u know how to find where the leak is?
Posted: Wed Jan 30, 2008 4:21 pm
by Hotwired
Drown it in a bath
Posted: Wed Jan 30, 2008 4:23 pm
by STHORNE
yup, lol...its an old method but its free and easy
Posted: Wed Jan 30, 2008 4:30 pm
by Maniac
i would upgrade to a qev or some kind of piston valve since you have such a large steel chamber.
Posted: Wed Jan 30, 2008 4:50 pm
by pizlo
yeah I guess you could make a coax with a bit of tinkering, and then you can really out on the pressure.
Posted: Wed Jan 30, 2008 4:53 pm
by daberno123
Right now the limiting factor on it's pressure is the sprinkler valve. I second Maniac's idea of a QEV or piston since they can be used at higher pressure than a sprinkler
Posted: Wed Jan 30, 2008 5:55 pm
by Hubb
Agreed. You are holding the potential of this launcher back with the sprinkler. Replace it with a QEV (which will probably easier than building a piston for this setup) and see what it can really do.
Posted: Thu Jan 31, 2008 8:31 am
by pnematicrookie
where the heck do i get a QEV from?! im new to this lol
Posted: Thu Jan 31, 2008 9:35 am
by jrrdw
Google them, Ebay (sometimes). Does McMaster carry them???
Forgot to say nice cannon. Nice cannon! Welcome to Spudfiles. Any damage pics or video's?
Posted: Thu Jan 31, 2008 5:02 pm
by pnematicrookie
thanx, but no damage pics yet...but this isnt my first gun by the way...i believe its my...fourth, im just experimenting to see what i come up with...so i'll try this QEV thing out lol
Posted: Thu Jan 31, 2008 5:16 pm
by potatoflinger
Another place where you can get a QEV is here:
http://www.fastenal.com/web/products.ex ... m_search=1
They are pretty reasonable as long as you don't get the 1" valve.
Posted: Thu Jan 31, 2008 10:14 pm
by pnematicrookie
thanx, yeah that 1" valve is ridiculous, i would just rather buy a real gun lol