looks very fun. how did you make the barrel so the bb's dont fall out?

it would be good getting sprinkler valves on there too.

You stole my display pic. Its a nice gun too.

No need to be rood MrCrowley. It is my first time and i had no instructions to follow. kinda.

it was solvent welding and it says to wait 24 hours before pressurising.

It was about 12 hours after glueing and only about 30psi.

Right now im in the middle (it should be the end) of making my first piston valve cannon. Unfortunately there was a leak in the glue because i used it too soon after glueing so now i need to take the barrel out and glue it back in. I prey that it will work after. im not sure if the piston seals prop...

Wow that looks insane. must have cost a fortune.

as soon as my dad gets home im going to nag and nag and nag for one of those compressers.

That is actually a pretty bad idea.

You could safe time and sweat by shooting yourself in the head right away. Shocked

that made my day

I might make a piston valve. but how would i make the piston?

This weekend im making a simple pneumatic golfball cannon. What i want to know is what the minimum volume/length my pressure chamber needs to be to get a good result out of the cannon. The barrel is 1m 40cm (4Foot 7In) long (i can allways shorten it) and for the pressure chamber i plan to use 50mm p...

Im "oldman32123"

this is a great idea btw!

Wow. that looks beautiful. any chance of some more picks and detail?

wow that must have been "fun". i dont know what that thing in the picture is though. please enlighten me