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Joel's Pneumatic

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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Joel's Pneumatic

Unread postAuthor: PCGUY » Sat Feb 05, 2005 5:09 pm

<div align="center">Joel's Pneumatic

This cannon can be bought from a friend of mine <a href="http://www.spudtech.com/detail.asp?id=52">HERE</a>.</div>
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Unread postAuthor: theexp » Mon Feb 07, 2005 8:43 pm

Amizingly clean, I love it. Joel always amazes me
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<img src="http://www.spudfiles.com/uploader/uploadFiles/post-12-1064980630.gif">

My website www.freewebs.com/potato_cannon/
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Unread postAuthor: Rudesill Ballistics » Mon Jun 13, 2005 11:54 pm

Much better looking than the CSV-19 that radio guy sells.
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Unread postAuthor: deathtodeer666 » Mon Sep 12, 2005 1:17 am

Where do u get the push button for the sprinkler valve?
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Unread postAuthor: CS » Mon Sep 12, 2005 7:14 pm

I think that you can buy one from joel at spudtech.com Im not sure were else.
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Unread postAuthor: Rebelnerd » Sat Sep 24, 2005 9:41 am

wow, it looks so cool and professional. how well does it work?
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Unread postAuthor: bboymatty » Sun Feb 19, 2006 12:35 pm

while the gun looks good i think the chamber is unnecessarily large. The U-connector made from the two 90° adapters is way too small, making a bottleneck.

In any other cannon with a longer barrel this wouldnt be a problem, but the barrel is so short that there would be a hell of a lot of wasted air inside that chamber.

Anyways, it looks good so if u can overlook that small design error then its alright.
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Unread postAuthor: TalonXxX » Sun Feb 19, 2006 12:49 pm

the bottleneck occurred way before the two 90 elbows... the sprinkler valve! there is no way around the bottleneck and it actually makes more sense to keep the same pipe size as the valve until you hit the barrel. also, how is the chamber unnecessarily large?

maybe you shouldn't start off your posting here with complaints about other, much more experienced people and their launchers...
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Unread postAuthor: zeigs spud » Sat Apr 08, 2006 12:34 pm

whatsthe lil ,eddal thing at je end of the chamber called? isn' it where u pu in the air?
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Unread postAuthor: Shrimphead » Sat Apr 08, 2006 1:02 pm

Nope. That happens to be a safety pop-off valve. Basically if the pressure gets to high it opens so you don't risk blowing the cannon (and yourself) up. On the other side of the cannon there is a pressre gauge and a schrader valve to fill it up.
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Unread postAuthor: zeigs spud » Sat Apr 08, 2006 4:39 pm

ohhhhh....how much are the scharader valves?
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Unread postAuthor: Shrimphead » Sat Apr 08, 2006 8:44 pm

Like two dollars or something. Go to an autmotive store and get the pop-in tire valves. They are really easy to put in your chamber.
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Unread postAuthor: zeigs spud » Sun Apr 09, 2006 2:43 pm

thanks thats what i was looking for
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Unread postAuthor: Dan003400 » Sat Dec 23, 2006 3:41 pm

Joel doesnt sell the buttin vavle that he has mounted on the sprinkler valve, where could i get one of those?
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Unread postAuthor: PVC Arsenal 17 » Sat Dec 23, 2006 4:05 pm

mcmaster has push-button valves.
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