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Will this piston work?

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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Will this piston work?

Unread postAuthor: Gunner » Sat Nov 17, 2007 2:26 pm

Leave comments, please.The red thing is the bumber of piston.
Will this work?
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Unread postAuthor: jackssmirkingrevenge » Sat Nov 17, 2007 2:29 pm

It will work but nothing too innovative is it?
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Unread postAuthor: Gunner » Sat Nov 17, 2007 2:37 pm

Yeah, I know but I just wanted to know does it work :wink: .
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Unread postAuthor: Ragnarok » Sat Nov 17, 2007 2:53 pm

Many hundreds of piston cannons have used such a design, and those all worked, so Murphy's law proves that at least one will have to fail to work, and that will obviously be yours because you asked the question without using the search function.

And using red as a bumper? Have you no sense? Red is one of the most solid colours, the piston will smash to pieces when it comes back!
You need to use green or turquoise, or if you can't find either, taupe and beige are also usable. Yellow can be used short term if you have nothing else to hand.
There is also a clear gap between your sealing face and seat, and all the air will leak out there, you may have left PVC dust on your rubber piston surface after cutting, which will be why it's not seating right.

This post was sponsored by Dry Wit & Sarcasm Potions UK plc., Maker of the world's best value sarcasm, irony and larking about.
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Does that thing kinda look like a big cat to you?
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Unread postAuthor: potatoflinger » Sat Nov 17, 2007 3:06 pm

^ that was funny :lol: Anyway, your idea should work.
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It's hard to soar with eagles when you're working with turkeys.
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Unread postAuthor: Hubb » Sat Nov 17, 2007 5:54 pm

That's a good, common design. However, I would suggest making your barrel just a little smaller or the tee a little bigger. This will help air push back on the piston better when it needs to.

@Ragnarok: OMFG, dude. You can make a joke about anything, can't you. Every time I read your posts, I can't help but to laugh.
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Unread postAuthor: Ragnarok » Sat Nov 17, 2007 7:10 pm

My sense of humour is because I am descended from some of the greatest twits of all time - every single member of my family tree I have ever met is really weird.
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Does that thing kinda look like a big cat to you?
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Unread postAuthor: Gunner » Sat Nov 24, 2007 4:14 am

The orange is a wood,grey is a duct tape and black is a bumber and seal.
Is it a sustainable enough for piston?
(PS.Sorry for my bad english :D )
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Unread postAuthor: jackssmirkingrevenge » Sat Nov 24, 2007 4:47 am

I'd say it would work, as long as your bumper is effective enough to keep the wood from distorting with the repeated impacts it will suffer.
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Unread postAuthor: BigGrib » Sat Nov 24, 2007 6:09 am

what kind of wood are we talking and are we talking about a solid chunk, also why duct tape around the side, why not dremel an o-ring groove around near the ends of the piston??
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Yea, that's definitely going to get you at least a tazer.

<a href="http://www.youtube.com/watch?v=AkMkGOpAF4s">DONT TAZE ME BRO.. DONT TAZE ME... AHHHH</a>
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