[ZInventor]

I agree with the concerns about the PVC, but, is there an alternative that would be anywhere light enough?(not metal)

I've seen 400PSI rated ABS blow a hole in the ground at 60PSI when a cannon of mine fired, not a pretty site...

overall, the only solution i have found is to wrap the whole thing in Molecular Bonding Tape (adheres to itself on a molecular level giving a shock strength of 1500PSI) then again in duct tape for appearance (and cachage of schrapnel that gets through the molecular tape)

after that, i've gone to metal for most of my cannons... since it'll bend, not shatter if it has to...

Do you by any chance have Inventor drawings of this???

I've been working on a similar project,but haven't gotten the revolving part down quite yet...

video? Please?

thanks,

-Z