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Large Inline Ball Valve Cannon

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Unread postAuthor: 666lucky693 » Fri Aug 10, 2007 10:54 am

idk i figured u shot them before i just wonderd what damage u got with it
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Unread postAuthor: DYI » Fri Aug 10, 2007 10:59 am

Well, that's kind of irrelevant, because the gun that I fired them out of was quite powerful compared to yours.
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Unread postAuthor: 666lucky693 » Fri Aug 10, 2007 11:00 am

yea i mean if u use one of ur small guns with ice
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Unread postAuthor: DYI » Fri Aug 10, 2007 11:05 am

Well, I rarely ever shoot my small guns, and I've never tried them with ice.
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Unread postAuthor: spud yeti » Fri Aug 10, 2007 11:27 am

DYI wrote:Well, I rarely ever shoot my small guns, and I've never tried them with ice.

Why dont you shoot them?

666lucky693 wrote:idk i figured u shot them before i just wonderd what damage u got with it

Im sorry, I was just in a "mood" and said that, dont take it personally please :?
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Unread postAuthor: 666lucky693 » Fri Aug 10, 2007 12:16 pm

its fine im gonna make ice darts to shoot
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Unread postAuthor: spud yeti » Fri Aug 10, 2007 12:19 pm

That should be decent. Just remember that ice expands and perhaps put lube into your mold?
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Unread postAuthor: 666lucky693 » Fri Aug 10, 2007 12:25 pm

k yeah i got the idea when i stuck this piece of metal pipe in the top of my barrel as a choke tube to shoot water and it got stuck so i had to cut part of my barrel off which didnt matter because ggdt said i have too long of a barrel ne ways so it should be a good dart
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Unread postAuthor: spud yeti » Fri Aug 10, 2007 12:33 pm

Using the ice as sabot for the bolt is a good idea, so good luck
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Unread postAuthor: DYI » Fri Aug 10, 2007 3:15 pm

Without lubing the mold, it is nearly impossible to get the ice out without waiting for it to melt.

My little guns mostly suck, except the steam gun... but it takes too long to heat up. I will post it when I build a better heat source. I don't really have any "big" guns because the only construction materials available for cannons around here are DWV ABS and galvanised steel.
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Unread postAuthor: 666lucky693 » Fri Aug 10, 2007 10:47 pm

what shall i lube the mold with
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Unread postAuthor: spud yeti » Sat Aug 11, 2007 1:31 am

I use cooking spray, vaseline, car oil, or anal lube (only kidding on the latter option :D )
Cooking spray is great because it sprays on, and forms an even layer. It is also heat resistant for molding hotglue, but thats besides the point here.
For ice I doubt you will need much, if any lube though :wink:
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Unread postAuthor: 666lucky693 » Sat Aug 11, 2007 5:58 pm

thats gonna be good
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Unread postAuthor: spud yeti » Sun Aug 12, 2007 2:21 am

So have you tried molding the ice and shot it yet?
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Unread postAuthor: 666lucky693 » Sun Aug 12, 2007 12:23 pm

nope havent had time
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