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diaphram vavles

A place to ask general spud cannon related questions.
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diaphram vavles

Unread postAuthor: ProfessorAmadeus » Mon May 29, 2006 6:26 pm

ok i've seen many diaphram or piston cannons and never understood how they got air into them, how they worked, the size of the piston or diaphram had to be. Oh and dont just say " if you need the plans you shouldnt be building spud guns" or dont say " look around for 2 seconds and you will find the answer" because ive looked and made quite a few cannons so please just help
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Unread postAuthor: jrrdw » Mon May 29, 2006 7:01 pm

OK THEN I'LL PUT IT TO YOU THIS WAY, I LOOKED ALL THOSE VERY SAME THINGS UP AND FOUND WHAT I WAS LOOKING FOR VERY VERY EASY!

NOTE FROM PIMPMANN22: Whats up with the large text and ALL CAPS posts? Your just as important as anyone else on this forum, so you dont need larger font and/ or all caps posts. Try to set your posts out by content rather then physical apperance as stated above.

Text was shruken due to the fact I didnt want to fix your ALL CAP post...
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Unread postAuthor: x.X.Cpt.Rollhart.X.x » Mon May 29, 2006 7:32 pm

look at this diagram : http://gbcannon.com/flash/coax.swf

The piston is not perfecly sealing the chamber than the air can go in the chamber.


here is a plan : http://img293.echo.cx/img293/8963/pistoncannon4gk.jpg


now this is how a diaphragm work :

http://www.xinventions.com/main/spud/ho ... _works.htm

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Unread postAuthor: sgort87 » Mon May 29, 2006 11:46 pm

LOOK AT ME! I CAN TALK REALLY REALLY BIG AND BE AN ASSHOLE TOO!

Sometimes, jrrdw, people miss small things and need a quick explanation. He said he looked, and apparently did not find his answer "VERY VERY EASY!".
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Unread postAuthor: ProfessorAmadeus » Tue May 30, 2006 1:02 am

damn thats some big font. well thanks to cpt.rolhart i understand the concept but doesthe phram have to be touching the barrel before the pressurising the chamber and how big should my equalization hole be?
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Unread postAuthor: rna_duelers » Tue May 30, 2006 5:43 am

If the air is comming from behind the valve diaphragm the air preasure should push the diaphragm against the barrel and seal it,just trial and error on a small one and if it works go bigger.
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