It IS ergonomic, can be shot by one hand and most importantly, free and took less than 15 minutes. The lighter is a tight fit, and I've been using it that way since my first gun.

Called the shortie, its just made from the combustion chamber of my previous gun. I only had to remove the threaded endcap set and about an inch of pipe, then glue it to the tee. 2 inch barrel, bunsen burner ignitor.

D_Hall: seconded. Although the motor is placed away from the blowing funnel itself. Mythbusters did this with a vacuum cleaner and petrol, there was no way it would actually burn inside it. Although by some freak accident. Which does happen.

If its illegal in Aussie then I think its as illegal in Singapore. After all, we do have extremely tight arms laws. *sigh* and I was gonna start building a new gun after so long.

That's an interesting mod to a nail gun. good job :thumbup:

ALIHISGREAT: dudee. Sweet. Next thing you see are advanced spudguns on future weapons. "Spudguns, the future of civilian defence. Cheap, relatively easy to manufacture and best of all, it can operated by almost ANYONE."

I was like, OHMYGOD! no kidding.

Reallly cool. if only Singapore allowed 15 year old kids to play paintball with that.

MAN! i'm doing the same thing too! but i gots no money to build

The first thing that came to my mind was OMFG. What do you shoot out of it anyway?

Sick guns man.

TurboSuper wrote:It's a shame these valves are difficult to scale up. The thing always holding me back from building a "mini" pneumatic cannon is the fact that I could just buy one for $50.

Why buy when you can build?

Hmm...i'll take that as a no then but what do you mean by

if I were to put a hammer that strikes the schrader valve stem

?

I've seen these before at instructables.. I wonder if it could be used for a 25mm coaxial? Apparently it says it releases vast amounts of air quickly, could it compensate for its small size?

Ehh...never seen one of those before. I assume the blue thing is the aerosol can?

Nice one you got there interesting fueling system. Whatcha make it out of?

Great job could we have some more pics of the m203 please?

I WAS thinking of using particle board (i got bits lying around), but the new criteria (damn!) says I need to use recycled plastic

I was thinking of using 50mm pipe pieces from my old spudgun. But how do i get a flat piece as a base?[/quote]