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grenading PVC ballistic test

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: MrCrowley » Mon Nov 28, 2011 6:47 am

I do have to add that discussing dry ice bombs isn't allowed on the forum, we just prefer to not associate the forum with such devices in case the media ever have a reason for visiting this site.
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Unread postAuthor: EpicMadness » Mon Nov 28, 2011 6:53 am

lol oops, wasn't expecting it to be on the "not to post" list =( sorry about that. editing my posts just incase.
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Re: grenading PVC ballistic test

Unread postAuthor: Crna Legija » Mon Nov 28, 2011 8:12 am

EpicMadness wrote:its not really that complex, its just you added an internal heating element, just pouring boiling water before closing the end caps could do the trick as well. how hard do you think would it be to put ice cubes in a Gatorade bottle? its the same concept but with added wires in it.


seams much easier/cheaper to just thread a hose barb into a end cap and fill with compressed air.

EpicMadness wrote:blowing off the end-caps are a possibility indeed, but rivets can secure them like hell, believe me, i've been doing those for ages :twisted:
(bore 2holes on the sides of the caps on both female and male, now put a rivet)


sure it will work but not the right way of doing it, as jsr said solvent weld should be strong enough by its self but the problem is DWV fittings have short socket depth so there isn't much holding it on.
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Unread postAuthor: MrCrowley » Mon Nov 28, 2011 3:30 pm

EpicMadness wrote:lol oops, wasn't expecting it to be on the "not to post" list =( sorry about that. editing my posts just incase.

No worries, technically it's not in the rules but has been brought up previously and the Admin didn't want it discussed. Not your fault :wink:
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Re: grenading PVC ballistic test

Unread postAuthor: EpicMadness » Mon Nov 28, 2011 3:48 pm

Crna Legija wrote:
EpicMadness wrote:its not really that complex, its just you added an internal heating element, just pouring boiling water before closing the end caps could do the trick as well. how hard do you think would it be to put ice cubes in a Gatorade bottle? its the same concept but with added wires in it.


seams much easier/cheaper to just thread a hose barb into a end cap and fill with compressed air.

EpicMadness wrote:blowing off the end-caps are a possibility indeed, but rivets can secure them like hell, believe me, i've been doing those for ages :twisted:
(bore 2holes on the sides of the caps on both female and male, now put a rivet)


sure it will work but not the right way of doing it, as jsr said solvent weld should be strong enough by its self but the problem is DWV fittings have short socket depth so there isn't much holding it on.


removed by moderator. well anyway, your choice, i could get these cheap when you could get yours for... idk, cheap also? depends on location, person and funds.
btw, i cant do it here atm, i'm in the middle of the city, its like saying "ey bro lets make some hot stuff and get us in the slammer".

true enough, it depends on what type of fitting and what type of material is being used, but riveting the piece while doing a neat solvent weld should yield the most results.
its like asking why did they even invent rivets when welding can be used more effectively >,>

why is it so hard to discuss explosions on a thread that discusses explosions :x
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