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Piston Brass Air Gun
Posted: Fri Mar 09, 2012 5:23 pm
by sagthegreat
This is my first gun:
Mostly Brass
Rubber/Aluminum Piston
about 8 inches long
3mm barrel
pumped to 200 fps so far to test, need to buy shock pump.
Let Me know what you guys think( My next project is a bigger version of this)
Posted: Fri Mar 09, 2012 5:33 pm
by natas
take awaty the S in https: and your image link will work
Posted: Fri Mar 09, 2012 11:35 pm
by jackssmirkingrevenge
Nice little pen gun
Posted: Sat Mar 10, 2012 11:26 am
by sagthegreat
for some reason after filling the gun, if I wait for a few seconds the pressure decreases. I can't. fond the leaks argh
Posted: Sat Mar 10, 2012 12:18 pm
by pneumaticcannons
Have you dunk it in water? Pen gun leaks are typically very small and inaudable, making water testing a must. Or maybe, your equalization space is very small and when you pressurize it, it takes a while for air to seep into your chamber. Same thing happens to my latest a marker gun (not posted) So tell us a bit more about your piston.
Posted: Sat Mar 10, 2012 1:32 pm
by sagthegreat
my piston is a tight fit, its made of aluminum and rubber, then wrapped in tape
Posted: Sun Mar 25, 2012 11:00 am
by sagthegreat
it works now thanks guys, i used jsr's epoxy method and cranked this up to 550psi, it shot a nail into a stop sign from 10 feet away, im surprised
Posted: Sun Mar 25, 2012 11:31 pm
by jackssmirkingrevenge
sagthegreat wrote:it shot a nail into a stop sign from 10 feet away
Pictures/video
Posted: Mon Mar 26, 2012 7:06 am
by sagthegreat
Sure thing. I just need to get my camera working
Posted: Wed Apr 11, 2012 5:47 pm
by PotatoEnemy17
sagthegreat wrote:it works now thanks guys, i used jsr's epoxy method and cranked this up to 550psi, it shot a nail into a stop sign from 10 feet away, im surprised
And now everyone who stops at that stop sign will know that you have the best pen gun in the city.