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Plans for a piston gun.
Posted: Sat Dec 19, 2009 8:51 am
by elad311
I was cleaning my computer when I came across with those plans for
a piston gun:
I'm guessing that the grey part is the piston and the ratio between the barrel and the comber is 1:2.
Do you think it will work?
Posted: Sat Dec 19, 2009 8:56 am
by velocity3x
Although very crude, it can work if constructed properly.
Posted: Sat Dec 19, 2009 11:36 am
by RabidDuck
you may want to change that ball valve out for a modded sprinkler valve with a blow gun, for your pilot.
Re: Plans for a piston gun.
Posted: Sat Dec 19, 2009 1:51 pm
by jackssmirkingrevenge
elad311 wrote:I'm guessing that the grey part is the piston and the ratio between the barrel and the chamber is 1:2
More like 1:4
Do you think it will work?
The piston needs to be longer, as it is the chamber will just empty through the pilot, also there's too much dead space.
Posted: Sat Dec 19, 2009 11:35 pm
by Gippeto
Might want to give some consideration to creating differential area (piston) as well as Jacks suggestions.
Posted: Mon Dec 21, 2009 8:57 am
by psycix
1:1 will be enough.
The piston valve won't work that way. It needs to seal onto a porting.
This is just a T with a piston in it, not a piston valve.
Check out the "piston valves explained visually" thread for more information on how piston valves work.
Posted: Mon Jan 25, 2010 7:00 pm
by Gun Freak
there is no need for the ball valve on the bottom.
Posted: Tue Jan 26, 2010 4:39 am
by psycix
Only if you are using a shrader to fill.
If you are using a quick connect, you'll have to close it before disconnecting. However, you could vent through the quick connect, and leaving the top BV out.
Saves a lot of pilot volume. (T and two elbows)
Kinda old thread you dug up though.
Posted: Tue Jan 26, 2010 11:21 am
by Gun Freak
Oh my bad
Didn't realize. This thread was at the top of the Pneumatic Cannon Discussion
