Search found 1039 matches

by boyntonstu
Sun Jun 28, 2009 1:08 pm
Forum: General How-To & Discussion
Topic: "Shut-Off Piston" to save air for (semi)auto
Replies: 21
Views: 4342

A possible solution:

Large chamber;manual valve; small chamber;firing valve.

BoyntonStu
by boyntonstu
Sun Jun 28, 2009 12:03 pm
Forum: Pneumatic Cannons
Topic: Maximum fridge - a/c compressor output
Replies: 19
Views: 10297

Re: Maximum fridge - a/c compressor output

Hi guys, How the title may say, I'd like to know the maximum output of a fridge compressor (or air conditioner). I know that you can go past 300 psi but did someone really pushed a fridgy to the limit? What pressures are safe and at what pressure would you say "damn my insurance is not going to pay...
by boyntonstu
Sun Jun 28, 2009 11:39 am
Forum: Pneumatic Cannons
Topic: A crossbow pneumatic idea
Replies: 21
Views: 4322

I reckon you'd need something to hold the BB back in order to generate any significant pressure. Did you see the video? .22 at 600fps. Whatever they do, it seems to work OK. How about a multiple rubber 'slingshot' gun instead of a bow? 5 slingshots should produce a few hundred pounds of pounds of f...
by boyntonstu
Sun Jun 28, 2009 9:16 am
Forum: Pneumatic Cannons
Topic: A crossbow pneumatic idea
Replies: 21
Views: 4322

A crossbow pneumatic idea

http://www.airowgun.com/pellet.php I spoke with the company. The guy said that a 70 pound pull would shoot a .22 pellet about 600 FPS. The idea is simple; the bow forces a piston down a "bicycle" type pump which is the compressed air source. HMMN! Why not use an 80-85 pound self cocking crossbow pis...