Search found 3 matches

by Steverulez
Mon Mar 20, 2017 5:42 am
Forum: BB, Airsoft, and Pellet Guns
Topic: Barrel for 4mm or 5mm steel balls
Replies: 14
Views: 1490

Barrel for 4mm or 5mm steel balls

Hey guys. I was wondering how do I get a barrel measuring 4.1mm or 5.1mm inner dia. For steel bbs. I can find any tube which would suffice my needs. From where can I get it or who can make it or how can I make it myself ? It's really important for it to be of precise size as I'm building a full auto...
by Steverulez
Tue Mar 07, 2017 3:15 am
Forum: BB, Airsoft, and Pellet Guns
Topic: Compressing air upto 300 psi with bicycle pump.
Replies: 15
Views: 1980

Re: Compressing air upto 300 psi with bicycle pump.

Does the the tanks volume effect the force we need to apply to build pressure or its the pressure alone which decides it. Force = Pressure x Area. The volume doesn't enter into the amount of force required, but it will affect the amount of work required. Something like my own HEAL is a pretty big l...
by Steverulez
Mon Mar 06, 2017 4:15 am
Forum: BB, Airsoft, and Pellet Guns
Topic: Compressing air upto 300 psi with bicycle pump.
Replies: 15
Views: 1980

Compressing air upto 300 psi with bicycle pump.

Hi guys. Recently I planned to build a full auto bb gun (uses 4.5mm steel balls) operating at 300 psi. Air flow is regulated by a solenoid valve which is controlled by arduino. Here's the question, I've decided to make the air chamber out of a 2" galvanised steel pipe which is 90cm long ( about 1.6 ...