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MG-20

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Unread postAuthor: psycix » Mon May 19, 2008 2:50 pm

rcman50166 wrote:You could always attach an air hose between the sprinkler and the air gun. Then you could orient it any direction and in any place on the gun.


And waste power!

Efficiency...
Is it worth less then ergonomy?
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Unread postAuthor: sniper hero » Tue May 20, 2008 8:23 am

psycix: yes this was ment to be a piston gun but after a lot of problems and things I made it with a sprinkler and it works very well

and how much is the pilot affected by the hose ?
because a little more ergonomic would be good but I want to keep the power.

and I screwed up my pump a little
sometimes it doesn't give air when I pump
is this something I can fix?
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Unread postAuthor: psycix » Tue May 20, 2008 10:16 am

I you shorten the hose, it will have less pilot space and thus pilots faster.
Wich makes your valve open faster.
Good for short barrels. I cant tell you by how much it will increase, but thats always different.

I dont know what kind of pump you have, maybe the checkvalve doesnt seal always. Once had that.

You should really get that larger tee and convert this thing to a piston valved one.
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Unread postAuthor: Brian the brain » Tue May 20, 2008 12:08 pm

Just so you guys know..

This valve is Overkill's old exhaust valve.( when it was still green)
It was better than the new ( same) solenoid I modded for him, so I decided I would sell him the best one.



Nice to see you´ve got it working!
The blowgun is best used upside down, I forgot to tell you this.
If you tap the blowgun really fast you will save air.The valve will close and keep some of the pressure inside, so you won't need to pump it up from zero.

So you've shot through a door huh? :D
Not bad for a second hand valve, now is it?


@psysix:
A piston valve will not be a great improvement at this caliber.
This valve has more than enough power and it functions flawlessly.
A piston valve will be hard to make, prone to failures and not add that much power.
Plus it will cost him more money.

By the way psysix, I have a 3" piston valve for sale soon...interested??
( Joke, I know you're not)
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Unread postAuthor: psycix » Tue May 20, 2008 2:25 pm

Brian the brain wrote:Just so you guys know..

This valve is Overkill's old exhaust valve.( when it was still green)
It was better than the new ( same) solenoid I modded for him, so I decided I would sell him the best one.


@psysix:
A piston valve will not be a great improvement at this caliber.
This valve has more than enough power and it functions flawlessly.
A piston valve will be hard to make, prone to failures and not add that much power.
Plus it will cost him more money.

By the way psysix, I have a 3" piston valve for sale soon...interested??
( Joke, I know you're not)


Ah so its better then a normal sprinkler :)
In that case a piston might not be "that" much of an improvement indeed.

3" piston valve? wat voor porting? Van pvc of metaal? Kostie? :D
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Unread postAuthor: sniper hero » Tue May 20, 2008 4:18 pm

yes I did some more shooting today and it works so well :D
some marbles even broke :twisted:
tommorow I hope I can make the last few shot's for my mini compilation and then I will try to post it :lol:
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