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golf ball 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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golf ball cannon

Unread postAuthor: spudster80 » Sat Aug 23, 2008 4:25 pm

This is my first working piston cannon and my first post on spudfiles. :D

I usually only pump this up to around 90 - 100psi and i made two barrels.
- 1 1/4" potato barrel - 2" sleeved into 2"PVC (golfball barrel)

Specs:
- 2" chamber
- modded sprinkler valve (pilot valve)
- plywood piston (i got the idea from MrCrowly)

shot a golf ball 350+ yards
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Attachments
spud002.jpg
spud.jpg
pilot valve and piston housing
spud001.jpg
damage from a 1 1/4" potato slug
Last edited by spudster80 on Sun Aug 24, 2008 1:45 am, edited 15 times in total.
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Unread postAuthor: blind909 » Sat Aug 23, 2008 4:29 pm

Nice cannon! And welcome to spudfiles. It looks a little akward to hold though.
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Unread postAuthor: spudster80 » Sat Aug 23, 2008 4:41 pm

yea. its really meant to be held by your hip but it is a little different
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Unread postAuthor: blind909 » Sat Aug 23, 2008 4:56 pm

Cool, And I think You topic isnt getting much attention is because It was titled the same as mine, and most people have already seen mine, so You might want to change the topic title.
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Unread postAuthor: jonnyboy » Sat Aug 23, 2008 4:59 pm

Cool cannon, is that gray stuff leak sealant?
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Unread postAuthor: spudster80 » Sat Aug 23, 2008 4:59 pm

ehh. its ok. thanks though
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Unread postAuthor: spudster80 » Sat Aug 23, 2008 5:00 pm

umm no. it epoxy putty. after i finished it there was a small leak there but now its fine.
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Unread postAuthor: unisonmind » Sun Aug 24, 2008 12:16 pm

i like the cannon but i see some DWV --- i one on the pilot is a easy fix but the one on the front is going to be a hard fix and maybe a cannon ender


p.s. you should drill and tap your psi gauge on a fitting so you more then just one layer of pvc
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Unread postAuthor: spudster80 » Sun Aug 24, 2008 12:44 pm

:shock: oh no. i think i might just leave it because i never take it over 100psi and its hasnt broken yet. you're right though, i really should fix it.
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Unread postAuthor: blind909 » Sun Aug 24, 2008 1:08 pm

100 PSI is still a hell of alot of pressure on non-pressure rated fittings, I would say around 60-80 psi, just to be safe, because we all know how catastrophic it is when PVC ruptures. :shock:
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Unread postAuthor: spudster80 » Sun Aug 24, 2008 4:29 pm

yea. ive never had PVC break, but ive heard some crazy stories. thanks for the heads up though
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Unread postAuthor: SpudFarm » Sun Aug 24, 2008 4:42 pm

nice cannon, and i have a input on the DWV, you have it on the worst possible places since those fittings take the smack of the piston
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Unread postAuthor: spudster80 » Tue Aug 26, 2008 12:45 am

you're right. i think i might actually fix it now cuz i dont want to die next time i shoot this thing.
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