Pneumatic Pen-gun Project

[jackssmirkingrevenge]

If you build the cartridge with the schrader at the base of it, there's no need to come up with an innovative design - you have ever a century of cartridge firearm mechanism development for reference

It's on my "to do" list but I'm working on something else at the moment.

[paaiyan]

This is pretty sweet. I bet this'd be awesome to piss teachers off at school. If you had a way to refill it there.

[jackssmirkingrevenge]

This is pretty sweet. I bet this'd be awesome to piss teachers off at school. If you had a way to refill it there.

The pump I use is very compact when folded, only slightly longer than the launcher itself - though of course I don't in any way advocate or condone its use for malicious purposes.

[paaiyan]

This is pretty sweet. I bet this'd be awesome to piss teachers off at school. If you had a way to refill it there.

The pump I use is very compact when folded, only slightly longer than the launcher itself - though of course I don't in any way advocate or condone its use for malicious purposes.

Oh of course not.

[ammosmoke]

I don't understand, how does this work? Wouldn't pushing on the end vent the pressure out of the shrader? Thus doing nothing? How does this...?

[keep_it_real]

Yes it does vent it but only behind the piston. The piston moves back and lets the air in front of the piston out the barrel. It is a barrel sealing co-axial if you want to research it.

[ammosmoke]

OH!! *mind block blows up* I get it now!! I could never understand how co-axials work until now. It relieves the pressure just enough for the piston to move back and "unclog" the barrel, then pow! I am so glad I finally got it!!

[jackssmirkingrevenge]

I am so glad I finally got it!!

You've been a member since September and only got it now Ah well, better late than never

[origin unknown]

Why isn't your entry in the voting list?

[pyromaniac]

His gun is the only mini it automatics moves to the next round.

[origin unknown]

oops...forgot it was a mini

[joannaardway]

Very innovative. This probably qualifies as one of the smallest spudguns in history.

My only really mini "cannon" to date was a coilgun. My brother then of course had to come up with something twice as good, and three times as efficent, but it was still damned fun.

[FeLeX]

If it isnt a secret, what did your bro come up with?

[jackssmirkingrevenge]

Very innovative. This probably qualifies as one of the smallest spudguns in history.

Thanks

The smallest semi-amateur pneumatic I can think of is this device: pop-shot micro gun - chambered in 0.177 using the Brocock micro air cartridge (now illegal in the UK thanks to your lovely government ) at about 900 psi.

I haven't seen a smaller co-axial though I could easily have gone smaller lengthwise but I wanted some measure of power.

[ammosmoke]

THat is so CoOl!!! I wish I had one of those key chain guns!!! They cost so much though... WAAAAHHH!!!