piston valve mkII

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urgle the danish cow
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Wed Jul 21, 2010 12:15 pm

this is a revised version of my first piston valve by adding a blowgun and reducing pilot vloume(still needs work). the chamber is 3/4in copper pipe and the barrel is completely threaded but was surprisingly cheap being 1/4in bore and is 3 feet long. i found it in the lamp section of my hardware store as a wire housing for lamps. i havent got a chance to take any damage pics as i finished the enlarged chamber and barrel today. i have a smaller barrel and airchamber from an old gun with a pressure washer barrel for the barrel.
the piston is made of hot glue and has a rubber sealing face.
Attachments
veiw from the back with the short barrel on
veiw from the back with the short barrel on
looking down the gun
looking down the gun
with the old short barrel
with the old short barrel
the gun with the long barrel and chamber
the gun with the long barrel and chamber
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clemsonguy1125
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Wed Jul 21, 2010 12:19 pm

Looks good, but that pilot volume is HUGE, if you reduce it you will see a noticable power increase.
That is all.
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urgle the danish cow
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Wed Jul 21, 2010 12:25 pm

clemsonguy1125 wrote:Looks good, but that pilot volume is HUGE, if you reduce it you will see a noticable power increase.
:D you should have seen it before. it was gigantic! and yeah im workin on it. as you may have known from my 1/2 coax project about a week ago im not very good at pistons
Clarke
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Wed Jul 21, 2010 6:41 pm

You should switch the blowgun with the schrader so it has a more gun type feel and it will probably increase you accuracy.
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urgle the danish cow
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Wed Jul 21, 2010 9:22 pm

Clarke wrote:You should switch the blowgun with the schrader so it has a more gun type feel and it will probably increase you accuracy.
i was going to have a 90 degree elbow for the blow gun for that but that is a good idea, i will do that. cheers
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ilovefire
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Thu Jul 22, 2010 2:12 am

cool looks good! its almost the same a what i was thinking of trying to make
Clarke
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Thu Jul 22, 2010 6:52 am

As clemsonguy1125 said i think you need to re do the pilot side and you will see a noticable increase in power, combined with the new blowgun position and this think would be a great clean looking gun.
Clarke
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Thu Jul 22, 2010 6:59 am

As clemsonguy1125 said i think if your re-did your pilot side and re-positioned the blowgun i think you will notice far better power and accuracy.

Edit; Sorry double post
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