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My First Pneumatic (Help Me) (With Pictures)

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: ShowNoMercy » Thu May 17, 2007 4:50 pm

You might want to add some support under the barrel too, you dont want anymore stress on that joint then nesacery.
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Unread postAuthor: hotrocks » Thu May 17, 2007 4:52 pm

oh yeah...we are going to put some plywood under it...ill put some pictures up this weekend

hahaha we should call it The MotherPucker
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Unread postAuthor: spud yeti » Sat May 19, 2007 9:14 am

Hey hotrocks, I think i came into this one a bit late and you maybe have answered this one allready, but what are you using for an air source. I suggest a small compressor because you dont have to have it portable if its just a project and it will get you nice pressure :lol: .
Any ways, good luck! and i wish I also had a cool school project like that 8)
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Unread postAuthor: spud yeti » Sat May 19, 2007 9:29 am

O yeah, nice looking photos too. hehe, looks lethal!! How much it cost you now?
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Unread postAuthor: hotrocks » Sat May 19, 2007 11:19 am

less than 60$...
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Unread postAuthor: stupidandcontagious » Sun May 20, 2007 9:23 pm

spud yeti, we're going to be using bike pumps for the air source. Compressors aren't allowed.
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Unread postAuthor: spud yeti » Mon May 21, 2007 6:30 am

O ok, understandably, an idea: get 2 or more bike valves into your chamber to increase speed of pumping up. just an idea....
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Unread postAuthor: stupidandcontagious » Mon May 21, 2007 1:46 pm

Yea, we already did that. Hopefully we'll be testing today, in like an hour, so we'll try to hit you up with the results. Hotrocks also says that he got some awesome stuff that is specifically designed to attach wood and pvc pipes for the supports. We'll see how it goes.
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Unread postAuthor: hotrocks » Tue May 22, 2007 11:41 am

well we tested it a few times, average shot was around 100 yards.....300 feet....yeah so it went higher than we wanted it too, and we are fixing that with some supports under the elbows, but overall it turned out amazing! and this was at 20 psi..it was hard to get higher with a bike pump
thanks for all of your help guys.....
Now we need to make it look cool...we are thinking a camo paintjob...mabye metallic...wadda you guys think? Also, for lubricant we are thinking palmolive on a rag and we just wipe the inside of the barrel down with the rag on a broom stick.
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Unread postAuthor: spud yeti » Wed May 23, 2007 5:14 am

Wow! that is a good set of distances! You guys should be proud :lol:
Ja, sometimes having your upward angle too big can hinder its distance, so just experiment with that. The paintjod would be decent, i like the camo idea! 8) So the next question... After the project is finished, will you continue building spudguns?? Are you hooked..... :lol:
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Unread postAuthor: hotrocks » Wed May 23, 2007 4:25 pm

ehh lubrication is hard......any suggestions

and any suggestions on pumping air....we are not allowed to use electricty and bike pumps get hard after a while....foot pumps? i dno
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Unread postAuthor: mopherman » Wed May 23, 2007 4:31 pm

pyromaniac wrote:tht fitts a hockey puck? also id buy 2 new elbows and make the chambers a little closer together.

might not want to do that. it would increase the chance of it tipping over
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Unread postAuthor: lukemc » Wed May 23, 2007 5:00 pm

well first off 100 yards with 20 psi i have to say im impressed.
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Unread postAuthor: ShowNoMercy » Wed May 23, 2007 5:04 pm

What would make you design it the way you did? I am wondering cause it is a quite random arrangement of pipes and fittings.
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Unread postAuthor: pyromaniac » Wed May 23, 2007 5:10 pm

There was a cannon posted erlier which he took the desighn off of. read the whole topic.
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