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Spring loaded ball valve design

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Spring loaded ball valve design

Unread postAuthor: )DEMON( » Thu Sep 28, 2006 6:59 am

I have a 1/2 inch ball valve that I have fixed to an aluminium plate.
I want to make it spring loaded with tension springs but do not know how to go about doing this.

I would like to include a trigger in the design as it is going to be an exhaust valve. I need some help with making this.
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the handle was connected to here
ball valve&plate.JPG
This is attached with putty and adhesive.
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Unread postAuthor: Pwnany » Thu Sep 28, 2006 9:03 am

Heres a quick diagram I made I hope this is what you wanted.
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Unread postAuthor: )DEMON( » Thu Sep 28, 2006 9:05 am

How do you stop it from opening?
Sorry, I forgot to say I need to make some sort of lock mechanism. Thanks for trying though.
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Unread postAuthor: Pwnany » Thu Sep 28, 2006 9:10 am

Put a bolt or something sticking out of the piece of metal just to the left of the trigger in my diagram so that when it is pulled that way buy the spring it stops on the bolt so then it is closed. when you pull it it opens and well... yeah.
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Unread postAuthor: )DEMON( » Thu Sep 28, 2006 9:33 am

I was thinking of something like this but how would I make it?
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Unread postAuthor: Pwnany » Thu Sep 28, 2006 9:44 am

Ohh sorry. I didn't full understand what you wanted to make.

To make it would probaly just take a while. It shouldn't be TOOOO hard.
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Unread postAuthor: Brian the brain » Thu Sep 28, 2006 11:37 pm

The only hard thing is you'll have to make a squared hole to grip the "axle"of the ballvalve.
Just drill a smaller hole and file away.Or you can leave the handle and attach a plate to it in the shape you have drawn
The drawing should work, but I would put the pivot point of the trigger a little lower.
it should be straight from the point where the trigger meets the "hammer"plate like so -> I------0
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Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: )DEMON( » Fri Sep 29, 2006 1:35 am

Ok, thanks. I am going to look into contruction materials this week end.
Why does the pivot of the trigger have to be lower?, does it help?
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Unread postAuthor: Brian the brain » Fri Sep 29, 2006 11:53 am

so the trigger can't slide off the hammer part.
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