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paintball/bb grenade

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paintball/bb grenade

Unread postAuthor: SpudFarm » Fri Sep 26, 2008 6:47 pm

so i decided to try to make a "shrapnel" grenade where the shrapnel is paintballs.

it is going to be a 3" PVC pipe that is cut in four pieces on the length with a 1" pipe in the middle. i will fill the gap between with paintballs/bb's..

it works like this: i fill the pipe in the middle to 150psi thentrigger it and throw it and in about three seconds it will burst the pipe and throw the shrapnel i put in there everywhere.

the question i have it how to get the 1" pipe in the middle to burst/ let out the pressure fast from all directions after i have thrown it?

i will edit this topic with a diagram tomorrow when it is not 2 at night...

(i could use solid fuel but that is not allowed)

any typos, sorry i does not mind to read through it again just now..
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Unread postAuthor: 808AirsoftGunner » Fri Sep 26, 2008 7:49 pm

hi i thought you left this hobby :shock:
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Unread postAuthor: blind909 » Fri Sep 26, 2008 10:46 pm

808AirsoftGunner wrote:hi i thought you left this hobby :shock:


Exactly What I thought.
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Unread postAuthor: Hotwired » Sat Sep 27, 2008 7:50 am

Ah, you can't really leave. It's not time consuming to post every once in a while.

As for the topic at hand... I can't see a pipe shrapnel being a good thing... Maybe a paper outer wrapper?

A "high" pressure leak behind a diaphragm or burst disk causing it to rupture or push the diaphragm against a bursting point would give the timing and the blast you want, reuseable too.
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Unread postAuthor: SpudFarm » Sat Sep 27, 2008 8:17 am

well if you think a bit this is not spudding, but the members here are masters when it comes to valves and that stuff :)

hotwired: that is a good idea, a tiny hole letting 600psi into a cardboard pipe or something.. thanks :)

to everyone that are going to say that i left, it was about quitting SPUDDING and this is not spudding at all ;)
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Unread postAuthor: psycix » Mon Sep 29, 2008 9:47 am

Id use a burst disk setup instead of blowing up a pipe.
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