hot glue piston

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
maz oner
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Ive made a piston by chopping up hot glue sticks into little pieces and put into a piece of spare copper tube, (chamber size) then heated the whole thing up with my blowtorch :twisted: untill it all melted now i cant get it out of the tube, its glued in like glue (as it is)
how does every one els take them out without cutting the tube
i might go heat it up a little so the outside melts a but then push it out but any help greatly appreciated

arigato
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MrCrowley
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You forgot to use non-stick or baking paper didnt you :P
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Mr.Russ
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Hehe I bet he did forget
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chaos
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maybe try lightly reheating the outside lol should have used that non stick baking paper :P
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Mr.Russ
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you could put a metal rod down the tube and whack it on the ground
maz oner
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nah i used baking paper on the bottom but not the sides but i heated the outside and it just droped out the i put it in my chamber and it was an exact fit ... i also finished silver soldering my gun together and s#!t is it powerful also i didnt know that hot glue seals the berrel aswell so no neoprene for me

cheers

maz
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