share your cannon accidents!

A place for general potato gun questions and discussions.
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Pilgrimman
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Fri Dec 07, 2007 10:16 am

I shot a 1" super ball from 50 feet away with my sprinkler pneumatic. Put a huge dent in the 1" plywood, and in 5 seconds, I was hit 3 times in the head with falling bits of superball (Falling, not bouncing back at high velocity :D )! Funnest day of spudding ever... Not an accident, but I also shot a paddle ball ball, and lost it to a ricochet that carried it over my two story house! :D
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Spitfire
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Sat Dec 08, 2007 11:19 am

I figured it was the possition of my ignitor. It must have made a hairline crack in the pipe when i drilled the hole.
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MrCrowley
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Sat Dec 08, 2007 3:15 pm

Wow that is some really really really thin pipe, thinner then DWV, you must of used down-pipe or spouting, not a good choice.
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DYI
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Sat Dec 08, 2007 4:56 pm

I think that cannon exploded because of how thin the pipe was more than anything. Even for combustions, you should use at least DWV SCH 40 pipe.
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WOW!!
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Sat Dec 08, 2007 6:50 pm

I put a 10'' hole in the roof of my garage when I hit the pilot valve on my coxial. It had a hardened concrete and steel ball in it at 110psi. So I hopped up on my roof, cut it square patched it and put some spare shingles on it.

Nobody knows about it :wink:
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Spitfire
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Sun Dec 09, 2007 7:52 am

They told me it was pressure rated an 100psi. We use it on the farm for pumping water at high pressures
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MrCrowley
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Sun Dec 09, 2007 4:31 pm

The blue stuff definitely does not look rated.
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Spitfire
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Mon Dec 10, 2007 1:36 am

Well like i say we use the blue pipe to pump water From a dam at high pressures
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Mon Dec 10, 2007 1:45 am

Spitfire wrote:Well like i say we use the blue pipe to pump water From a dam at high pressures
Is the dam up hill or down hill to where you are pumping?
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jackssmirkingrevenge
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Mon Dec 10, 2007 2:15 am

The ignitor definitely compromised the structural integrity of the pipe, but I agree with the opinion that it looks too thin to support pressure.
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Spitfire
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Mon Dec 10, 2007 2:30 am

Uphill about 200feet higher than the dam. Irrigation in appel orchids
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MrCrowley
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Mon Dec 10, 2007 2:36 am

What's the pipe made of? Does it have any writing on it?
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Mon Dec 10, 2007 5:08 am

jackssmirkingrevenge wrote:The ignitor definitely compromised the structural integrity of the pipe, but I agree with the opinion that it looks too thin to support pressure.
I agree, you can tell where the crack started from the pic.
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Spitfire
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Thu Dec 13, 2007 6:53 am

Ill have a look on the pipe andlet you know MrCrowley
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TwitchTheAussie
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Thu Dec 13, 2007 8:12 am

I was working on my spray n pray science project in my lounge room. I had it loaded but forgot about it and I was testing my sparker coz it wasnt working properly. Everything wasnt pressure sealed with cement but closed off and held with epoxy. Id discarded what I thought was a finished canister of butane from a long nosed lighter in the chamber. No cap was on properly, my barrel was just curing from the epoxy an hour before and I was pressing a sparker. Not smart :lol: .

Long story short, I had 3rd degree burns on my hands, 5 stitches between my thumb n finger, a lounge room covered in spud, a 15 minute case of loss of hearing, a broken cannon and a very pissed mother :lol:
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