Thanks jrrdw, I'm getting back into Airsoft, so that includes some spudding. Gonna try a slide-piston design for a linear piston cannon, should be interesting. Of course a sabot is necessary, I was thinking that firing something like a dixie cup filled with bb's would keep the bb's together long eno...

'Ello everyone, Like many spudgun and airsoft enthusiats, I spend alot of time contemplating and designing Airsoft/Paintball mortars. I imagine most people find that part simple enough and the real difficulty comes from the type of ammunition being used during play; most common options being nerf fo...

Neoprene gasket should work, then again I also am working on a piston valve. Points to Gun Freak for actually getting up and doing it, Im still "thinking" about it.

The guidelines sound simple, but getting the appropriate light and white balance can be difficult, and only goes up with the fancier cameras.

If you use Point and Shoot cameras, auto-focus and flash are your best friends.

You'll have a possibility of 4 shots because of the dead space in the center between all the alves. Or if you stick to three, the first shot will have much more air behind it than the first, the second and third chambers will be emptied into a lower pressure chamber on firing. Just something to note.

Tear drops are the most aerodynamic shape...make that?

Second hopper, and maybe instead of PVS whihc the design looks like, use a piece of rubber externally adjusted, ie. hopup. And a BB is sure to move over the rubber rather than try and squeeze through PVC tabs.

Second hopper, first magazine is my suggestion.

Eddbot we need damage pics

He gets my vote and my roommates.

Use a rat trap, Small wheels give you the acceleration you need, My suggestionw ould be small wheels, as you only have torque for so long. Large wheels give you the top speed though...

Aye it's not the cops fault, they get to much crap...


It's unfortunate that there are such tight arms laws in Australia, but it is a weebit safer down there no?

The idea is to make it look as close as possible to an M24, or a version of it, hence why this style was chosen, should put a nice stock on it, either carved wood, or if possible a foam core fiberglass stock. Im still debating whether or not to use a QEV or a Chamber Sealing Piston. It would be my f...

Aye almost exactly what Hotwired said, sorry about the bad description, 'twas late here to, and I wanted to get it out there... And No worries Poland, was going to put a section of Pipe out the back of the Tee to rest the bolt in and lock it. Oddly enough thats the first thing my dad said when I ran...

Alright, been brewing over a design in my head for a week now, rough sketches flood my notebooks, so I wanted to get everyone else's opinions before I splurged and went to Lowe's for all the things I'd need. I'll apologize ahead of time for no sketches uploaded, my scanner hates me, and Google Sketc...

It's usually easiest to make and over under or incline, and just tilt it...

Im with Mr. Crowley Oil rig.