Wow, that's a great idea wyz! I should try that And what cannon was that in the beginning of the video?

I pulled the wire out of electrical cables, and used it as air hose once. It didn't work amazingly well...

Awesome Cannon, Kinda reminds me of when I built a cannon with water bottles - oh wait that one turned in to a bomb, oops! It looks pretty ergoomic

Hi everyone!, The other day I suddenly got this urge to take something apart, and a quick-disconnect sitting on my workbench caught my eye. The simple, yet amazing quick-disconnect is something almost every spudder is familiar with, and most of us only vaguely know how it really works. Anyway maybe ...

Very clever, but the loud noise is the best part of spud guns!

JSR wrote: Ah, but JSR has spread the gospel and made it so that all peoples can make tight tolerance pistons

I guess i'm just a failure at epoxy!

And one cross section coming up:

I agree with JSR, it's a VERY satisfying bang. Good job! Just wait till I achieve that with a pneumatic cannon...

Semi auto, power, ergonomics, all in one. Clearly something built by wyz2285

But if you get the proper chamber to barrel ratio then the noise should be minimal any way, right?

@JSR Wow! A lathe and a mill! I only dream about those! :lol: What brand are they? What's so bad about cutting threads? I have to buy threads :lol:

Also, This may be insulting to you but the screw is one of the six simple machines and epoxy is not a simple machine. I guess that shows how good I am ...

OK, Thanks!

@wyz2285 Thanks! Do you use it all up in one afternoon? or how long does it last. And one more question, If you pump a 0.5 liter tank up to 3000 PSI then you regulate that down to 1500 PSI, will that give you 1 liter of 1500 PSI air?

@ WarHead052 Sure you "can" pilot a large piston with a schrader valve, but if you are looking for performance, power, or good range you probably should use a bigger pilot, And everyone knows that only JSR can get a piston as good as you describe

@beastmode986 You should know, if you ask JSR a question your going to need epoxy - lots of epoxy. Not that I'm against epoxy...

Both of the designs will work well. The one with the schrader valve cant be very big because a schrader valve is only a good pilot for really small piston valves. The one that you say shouldn't be finished is actually probably your best bet. Here's a link to another person who built one (it's called ...