One thing I have to ask... did you have access to street elbows? I've become addicted to them, as they keep everything nice and compact 8) I like the triggering setup!! The bondo piston is especially neat! (People like me don't have the patience for that!!) Very cool build! I have a similar golfball...

Usually ABS isn't pressure-rated, but I believe it is easier to get pressure-rated ABS in colder areas due to the fact that PVC gets brittle at low temperatures. Be ready to shell out the $$.... Unless the pipe has a pressure rating written on it, it is UNSAFE to use it under pressure. Like the cann...

I seem to remember a topic a LONG time ago where the poster ran his fridge compressor up to 1800 psi :shock: before he shut it off (meaning higher pressures were theoretically possible). I have no idea whether this is realistic for all fridge compressors, but I know I would never take it to that pre...

Ha ha that's awesome!! I should check if they ever went to an OSU football game

I did actually try that once with a piece of tennis ball, but oddly enough, the bumper would get pushed back into the QEV :shock: and I would have to open the thing up and yank it out with pliers :D You definitely have the right idea though... I've gotta think of something... Taking that thing apart...

UPDATE: Some vids from today's shooting session :D [youtube]http://www.youtube.com/watch?v=3u9yCOJa9_g[/youtube] [youtube]http://www.youtube.com/watch?v=y8fpD_cZBCo[/youtube] [youtube]http://www.youtube.com/watch?v=sfo1MfxPON4[/youtube] [youtube]http://www.youtube.com/watch?v=VVf772zNAzM[/youtube] [...

There is a formula on the wiki under the O-ring article, let me find it...

EDIT: Here... http://www.spudfiles.com/spud_wiki/index.php/O-ring

Yeah I guess that's it... I was goona actually google it, but the call of Taco Bell was too strong so I did that instead

You might do some research on the effects of low temperatures on copper's pressure ratings if you consider CO2.

You could find a construction site and park there, and use the bathrooms, Then drive to school... IDK the whole situation...

It sports a 12 inch diameter air chamber by 6 ft.

That's be hard to hold in your hand

Agreed, link please.

I would NOT mess with your computer like that... There can be many problems, and it's hard to get it to work properly. I got my router for free, just ask around and I bet you'll come up with something. Old folks are your best bet because they often get rid of things they don't need that are invaluab...

Why the enormous pilot chamber?

To annoy you

The real question is, what can we do to top it

Nice vid It has been posted before, but I had never seen it, just heard of it.

Maybe neoprene around the barrel instead? I really have no idea