SpudFiles

i just thought about this but has anyone ever checked if the chamber/barrel ratio ever mattered? i looked at some old mini's and i thought about that because if the volume of the barrel is bigger than the chamber then the projectile wont have a high enough velocity/mass ratio to do significant damage. i'm thinking of building a pengun or a coaxal just for some portable fun

Yes it matters. Google Gas Gun Design Tool (GGDT) and play with hypothetical cannons to fine tune your design before building it.

Technician1002 wrote:Yes it matters. Google Gas Gun Design Tool (GGDT) and play with hypothetical cannons to fine tune your design before building it.

Goooooooood plan!

How do you get into the ggdt, and i am gonna build a coaxial to you all stop with your complaint that i havent built anythin.

Here, maybe this will help you finaly build something: http://www.spudfiles.com/spud-cannon-re ... 13096.html

thanks link is bookmarked