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how to best burst a burst disk?

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Unread postAuthor: JDP12 » Thu Oct 02, 2008 7:10 am

yea well see Davidvinai- i dunno how much power that'll give as someone said above...

stillt rying to decide so keep the opinions comin!
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Unread postAuthor: jackssmirkingrevenge » Thu Oct 02, 2008 7:53 am

I would go with option one, with a high flow air input and a disk that will burst immediately at the pressure you're using - play around with number of layers to get an optimum strength.

The thing with option 2 is that you still have to open the ball valve as quickly as possible, and this makes it therefore much harder to aim.
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Unread postAuthor: jor2daje » Mon Oct 06, 2008 6:51 pm

I have been thinking about making one of these too and i thought you could do something with magnets, maybe a magnet with a nail on the end in a tube, then glue the tube to the inside of the chamber. Then on the gun part you have a magnet connected to a trigger this magnet pushes the other one with the nail connected and the nail bursts the disk. I haven't tried this yet but maybe it will work.
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Unread postAuthor: Hotwired » Mon Oct 06, 2008 8:21 pm

At least some birdstrike testing cannons seem to have used burst disk mechanisms. The example I've read used a ceramic disk to seal the chamber and a needle rammed by a solenoid to burst it.
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Unread postAuthor: jackssmirkingrevenge » Mon Oct 06, 2008 11:49 pm

Hotwired wrote:a ceramic disk to seal the chamber and a needle rammed by a solenoid to burst it.


Bone china shotgun, what a concept! :D
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