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Mini M203

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: PVC Arsenal 17 » Thu Nov 09, 2006 9:35 pm

The rubber sheet is the diaphragm (fixed)

They are pretty thick, like 6mm,

In the m203 they're a lot thinner.
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Unread postAuthor: POS » Fri Nov 10, 2006 6:51 pm

POS wrote:the rubber sheets, what are they used for, and how thick are they ? Can't realy find something around here, or I probably look in the wrong place.


Yes, I know that theye are used for a diafragma. But I mean, the sheets you buy, what are they normaly used for. I guess they are not manifactured for cutting out spud gun diaframa's. They have a other purpous
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Unread postAuthor: PVC Arsenal 17 » Fri Nov 10, 2006 8:04 pm

Oooo.... The thick ones I punch out of 4" rubber pipe caps. They fit over PVC and tighten with a hose clamp. Around $8.


The thin ones are just rubber bath tub stoppers.
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Unread postAuthor: Slugfoot » Mon Dec 04, 2006 9:56 pm

:) Nice toy.

Seems to me that if you cut the barrel off flush to the cylinder and secure the device inside another cylinder (facing inwards), then stuffed the gap between the outer cylinder and the cylinder wall of the gadget with paintballs and attached a wire from the relief valve you would end up with a paintball trip mine. :lol: :lol:
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Unread postAuthor: experament_u2 » Mon Dec 18, 2006 1:37 am

i recond it would be so cool to make one inside a coke can or beer and wen u lift it up to drink have the barel at the botem and pull the pop off valve with ure theeth and shoot ur freinds :twisted:
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Unread postAuthor: chartreusesnot » Wed Jun 20, 2007 11:04 am

sorry for the hella late ass post, but what if you tied a string to the safety valve, and attached it do the barrel of a bigger gun. Then you could shoot it out of one and have it fire at long distance. You might destroy it though...
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Unread postAuthor: lukemc » Wed Jun 20, 2007 11:31 am

i have seen this gun before! did you make this from plans on a website? i remeber someone posting this as a confetti shooter and wonder ing if he could sell it on ebay. i cant find the link right now but it looks like the same gun


EDit: found it! his had a handle though
http://www.spudfiles.com/forums/ebay-t7121.html


EDIT 2: sorry i didnt realize that yours was first and that this topic is old. i just saw it for the first time today
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Unread postAuthor: PVC Arsenal 17 » Wed Jun 20, 2007 12:55 pm

I just thougt of this one day when I found some random pvc parts.
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Unread postAuthor: Dgealy » Sun Sep 07, 2008 4:49 pm

Why do you need the pop-off valve? Couldn't you just fill it through the air valve, then, like when someone deflates their car tires with a pressure gauge, just push a piece into the back of the valve, releasing air? Or does the pop off release it faster.
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