Does anybody have helpful information about the weight of any given projectile affecting the shot. Particularly kick. And if heavier objects being launched affect the life of the barrel. (2" schedule 80)

Can you point me in the right direction?

So I am building a new pneumatic. I will eventually be buying a supah valve. However for the time being I want to get this project of the ground. So I've been doing a little research and I found a Canon on X inventions.com that has two sprinkler valves. Would there be any cons to me just throwing 3 ...

added 4 new pics... finally done with additions... i think

well if you look at my cannon, the chamber has a 4x2 reducer on both sides... could it just be that its not venting out fast enough? im thinking that if i add another fan... but an external one.. on the end closest to the handle with another 4x2 and a section of 4" pvc. would it draw in the air bett...

i have a chamber fan and i had it running to vent it out.

Okay spudders. question... i used the burnt latke meter calculator and figured out that for my cannon (358 cubic inch chamber) required a 12" 3/8 meter pipe that is pressurized to 89 psi. i launched my first shot and it fired perfectly. my second shot however did not... the mixture wouldnt ignite. i...

he is right... they fit in 2" barrels... slightly too small without the sides slit... they give a tight seal... and it varies on reusability... sometimes they crack... also you gotta find em

For all of you who havent tried this... i suggest you do... it works with the same principle as a shotgun shell... except for your launcher. spent caulk tubes fit perfectly in the barrel as a wad. just grab a bunch out of a construction site dumpster. cut of the tip and halfway down the tube, then c...

im adding a visafire... i just uploaded a pic. pros cons? any input helps

ha. i like that idea... it is pretty clever. maybe it could be APC... so it could be "advanced potato cannon" or "avoid pointing at crotch."

just added a couple new pics. let me know what you think! and more name suggestions please. im thinking something along the lines of some kind of abbreviation like ACSL 5000 or ACPG 5000 (advanced combustion spud launcher/potato gun 5000)

I've just got 2" and 1 1/4 right now... the 1 1/4 has a connection to fit inside the 2". both are 6 foot lengths, which are not the correct C:B ratio i know... my 2" barrell has a silencer on it which really quiets it down... do you like my latch connection in the 3" double t?

heres my cannon... do your worst. just a couple touch ups and a name. thoughts? sorry about the crappy pictures... took them with my phone. ill add specs later if you want them.

so im trying to figure out how to wire up my gun... fan and ignition. i have two spark strips, and i bought the electric spark circuit from launch potatoes.com. its powered by two individual battery packs, both 8 AA so 12 volts. i was wondering if anyone could draw me a diagram to make my electric s...