@mako
I have made penguns already, and I wanted to get into making self contained cartridges, so a short version of a pengun seemed appropriate.
I don't like cigarettes btw

Better answer late than never;) @TrollingCluckster good point, but really nothing will happen if it blows up in your hand. It's way too little volume and energy:) i'm sure @BartSkillZ The QEV is homemade, it's just a short piece of a solid 6mm alu rod with a piece of bicycle tube epoxied onto it as ...

Hey, very cool, nice prints! From my experience, you'll have trouble with the seal not sealing. I tried 3D printed piston seals and they don't seal. I ended up just printing the pistons and glueing on a piece of rubber with epoxy. Also you want the outside of your piston to be as good of a seal as p...

Alright, very interesting. Thanks:)

I live in europe (France) and my friend in germany.
We both have this question.

Do the cheap chinese QEVs from Ebay have a standard plumbing thread(1/2'')? I am fed up from making my QEVs and having to spend a week to get them working :bounce: :bounce: here is the QEV http://www.ebay.com/itm/G1-2-Thread-Pipe-Pneumatic-Quick-Exhaust-Control-Valve-QE-04/121777806013?_trksid=p2045...

I'm wondering what pressure such a ball pen will hold before bursting;) what do you think?

Thanks=)
The piston is a small cylindric piece of rubber.
As ammo i'm using toothpicks or steel balls from ball bearings. Nails would also work

Hey, i want to share one of my projects with you, it's a pengun made out of a ........PEN! http://up.picr.de/19513377os.jpg I can pump it up to 435psi (max of my pump;-)). It's got a tiny QEV inside, triggered by a shrader valve. The cap hides the valve. It has got a small pin inside, that releases ...

Hey talk, thank you very much! it fits&works perfectly!:) Thanks!! It's much better, because otherwise i had to use two hands, and the small trigger cap, and i had to push the cigarette paper away first, from the valve.

No i didnt use the upload attachement. I'm using a external picture uploading service as you can see in the URL.
@sagthegreat nice idea! How are these things called?
@Tep If i'd have something that fits inside, to pump it up, i don't have a valve to hold the air inside

Hey, i just remembered that i'm registered on spudfiles, so i thought i could share the few guns i build with you. This is the first one: A cigarette gun. It's a QEV triggered pengun, that uses a shrader valve for reloading and firing. The pressure I use is 30bar (435psi). It's 3mm caliber. I found ...

actually not, i thought about it, but why should i actually?

thanks=) yes, there's some "tesa-tape" right on the bottom of the hole in the barrel, so the bullet can't roll forward of backwards. But the air pressure still easily pushes it forward. (terrible sentence i guess xD) yea, I thought of *mmh, should i make a wooden frame for more stability...* but i t...

Hey=)
want to show you my new semi auto airsoft gun.

[youtube][/youtube]

thx for watching!

Everything is described in the video.

-40 round
-up to 3 round per second=)