2 inch piston cannon comment please

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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spudtyrrant
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i will enter everything into the ggdt again and check but its getting late so i will do it tomorrow i also didn't change the flow coefficient would that make a significant difference? if so what should i enter for it
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mark.f
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Looks good! I would personally like to see the internals' pictures rather than damage pictures, but that's just me.

Oh, and....

<img src="http://www.seehere.com/showPicture.do?t ... id=1359640" alt="">

JSR is going to emasculate you. :)
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jackssmirkingrevenge
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mark.f wrote:JSR is going to emasculate you :)
At least he's wearing shoes ;) maybe I'll stop at circumcision hehe
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spudtyrrant
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jackssmirkingrevenge wrote:
mark.f wrote:JSR is going to emasculate you :)
At least he's wearing shoes ;) maybe I'll stop at circumcision hehe
srry but isn't it a tradition i has to's includes the feets :P
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MrCrowley
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Turned out pretty nice! I too would like to see the piston, just to see how you made yours. Great to hear it's working out for, good to see my guide has helped people further their spudding addiction :)

Get some videos up :P
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Technician1002
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[quote="daberno123"]@Technician1002
Here is the wiki link for the page on GGDT. You can download it off D_Hall's site. There's a link in the article to his site.

[quote]

Thanks. Once I had a name instead of just the ggdt letters I was able to find it on a Goggle search. Thanks. I'll play with it and see what it takes to get marshmallows in a 1 inch supersonic as well as apples in a 2.5 inch.
Hitting almost 900 FPS with an apple has inspired me to try to reach supersonic.
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Fnord
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I miss the days where posting a simple jpeg image didn't require a page full of bloated javascript and flash. The images don't even show up here.

Anyway, it sounds like a nice gun... Any chance you can add precise specs to the original post; chamber volume, barrel length etc..?

A 7oz apple at 882 fps is like 5,000 ftlbs, so I'd think more of the 600 figure.
(Edit, oh that was technician, nevermind)
Judging from the video it still has some impressive power though.
Image
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