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Posted: Sun Mar 11, 2007 8:41 am
by LGM
Hydrogen would stay gaseous to 300psiā€¦
Then you would really be stupid.

Posted: Thu Mar 15, 2007 11:09 pm
by coolboarder58
im working on building an "igniter." its actualy a ghetto stun gun but my mom doesnt know that. there are plans all over the internet

Posted: Fri Mar 16, 2007 2:46 pm
by cannon freak
I really don't think that you should go to such a high mixture, I mean It may hold up to several firings, however, repeated high pressure spike will eventually weaken the metal.
Besides, 8 inch chamber!, its going to be more powerful than any hybrid on this site by far at even say a 60psi mix.


Cannon Freak.

Posted: Fri Mar 16, 2007 4:54 pm
by Scope
http://www.launchpotatoes.com/index.php ... oductId=19
Its legal because its rehoused

O yea... get a remote ignition for your hybriding needs

Posted: Tue Mar 20, 2007 9:10 pm
by deusXmachina
ZOMG I MADE A CANNON WITH ACETYLENE AND ABS CELLCORE AND IT ROX!!!! IT DON'T EXPLODE OR NOTH......

sorry I had to contribute to the immaturity :-P


Hydrogen + Steel = BAD. The hydrogen embrittles the steel, I'd stick with straight propane. 120 psi is just under liquefaction and that's an 8 bar mix...that's obscene. I like the design though, 8" steel means business XD. But yeah detonation is a big danger at those pressures.