Mini M203
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- Staff Sergeant 3
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Here is a mini m203 I made recently.
1 1/4" parts.
1/2" barrel.
Fill valve is an 1/8" Schrader.
Exhaust valve is a 1/4" pop-off.
Rubber sheet for diaphragm.
No test fires yet, waiting to glue to cure.
1 1/4" parts.
1/2" barrel.
Fill valve is an 1/8" Schrader.
Exhaust valve is a 1/4" pop-off.
Rubber sheet for diaphragm.
No test fires yet, waiting to glue to cure.
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- Staff Sergeant 3
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- Joined: Mon Mar 27, 2006 4:18 pm
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I couldn't resist... I just looked so shiny sitting there on my table.
All I can say is wow... this thing scared the fuck out of me. It is fucking LOUD!! This little packs a heck of a punch. It shot a nerf dart so fast I couldn't see it!
All I can say is wow... this thing scared the fuck out of me. It is fucking LOUD!! This little packs a heck of a punch. It shot a nerf dart so fast I couldn't see it!
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- Staff Sergeant 3
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Oh, the barrel is probably about 5 inches.
- schmanman
- Staff Sergeant 2
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attach a string or a cable to the pop off valve, then drill a hole straight through the top of a water bottle. then cut a hole in the bottom for the barrel, and cut the barrel off flush. then it would be disguised as a water bottle. to fill it, you could unscrew the top of the water bottle, and hook up a little bike pump, one of the ones that you mount on a bike frame (concealable) and hook it up, then pump it up. that would be slick. a concealed diaphragm cannon. tip the bottle up to take a drink, then pull the string.use It to fire peanuts at sporting events.
Persistence is a measure of faith in yourself
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- Staff Sergeant 3
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hehehe good idea.
I shot a glass marble at my shed. It didn't hurt it but it bounced back real far. I also shot water. It was awesome but screwed up the gun. I had to dry it before it worked again.
I'm actually really impressed with this thing1
I shot a glass marble at my shed. It didn't hurt it but it bounced back real far. I also shot water. It was awesome but screwed up the gun. I had to dry it before it worked again.
I'm actually really impressed with this thing1
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- Staff Sergeant 3
- Posts: 1762
- Joined: Mon Mar 27, 2006 4:18 pm
- Location: United States
Yeah, it's fusion. I made the diaphragm out of those cheap bathtup stoppers from home depot. I already burst one at 90 psi.
Cool idea for the concealed gun in the waterbottle... i am definitely going to have to try that now!
I wouldn't cut anymore of the barrel off... 5" is VERY short, and cutting anymore off would lead to significant power loss. Good idea using a diaphragm; I heard they work better than pistons for short barrelled guns
I wouldn't cut anymore of the barrel off... 5" is VERY short, and cutting anymore off would lead to significant power loss. Good idea using a diaphragm; I heard they work better than pistons for short barrelled guns
- schmanman
- Staff Sergeant 2
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you would pull the string hooked up to the pop off valve trough the hole drilled on the top ( just to clarify because I hadn't explained It in my previous post )
Persistence is a measure of faith in yourself
Its official: I started building one of these today! PVC arsenal, its just such a cool idea! I dont have any threaded plugs near me (only cleanout caps), so I build one myself with PVC rod and a male adapter.
Mine is going to be 1.5" pipe, with either a 3/4" SCH 80 CPVC barrel or a 1/2" SCH 40 barrel (leaning towards the 1/2", only because I don't paintball)
Mine is going to be 1.5" pipe, with either a 3/4" SCH 80 CPVC barrel or a 1/2" SCH 40 barrel (leaning towards the 1/2", only because I don't paintball)
- singularity
- Corporal 5
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i dont know this for sure but isn't cpvc weak and shouldn't be put under pressure.
be sure to check out my <a href="http://www.spudfiles.com/forums/ak-styl ... 9.html">AK Styled Vortex Gun</a> and my <a href="http://www.spudfiles.com/forums/at-4-t9627.html">AT-4 Rocket</a>
upcoming projects... finalized clip fed BBMG and ball point pen sniper
upcoming projects... finalized clip fed BBMG and ball point pen sniper
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- Staff Sergeant 3
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- Joined: Mon Mar 27, 2006 4:18 pm
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I beleive the rating of 3/4 cpvc is around 280 psi but not sure.
Good luck with it though!
Quick tip: grind down some 1" pipe to slip into the plug. This thickens it up a bit so the diaphragm won't get sucked in as easily.
Good luck with it though!
Quick tip: grind down some 1" pipe to slip into the plug. This thickens it up a bit so the diaphragm won't get sucked in as easily.