Ripcord:
I have a compressor in the garage with all the attatchments needed to connect my airbrush, now the compressor regulator is pretty hardcore as in the first number are 0 then 20, 30, etc. Where should one put the regulated pressure when airbrushing....6 psi is kinda outta the question unless the another regulator involved that i dont know about which is probly true. Dont mean to hijack the post....just thought this question may fit this thread for general knowledge.
You need two pressure regulators in your setup. I did that even though I use a "airbrush company compressor" right next to my work bench.
A good pressure regulator is a great asset because we use low pressure for modeling most of the time, between 10-30 psi. Use the garage compressor regulator to get 40-60 psi output, depending on how long your air hose is to the work area. Get a second airbrush style air pressure regulator at your work bench end to get the pressure down to where you need it, say, 17 psi.
Not all the airbrush air pressure regulator are created equal. Get one that says "diaphram type control valve" which will give you accurate adjustment of pressure. Most name brand airbrush company regulator are this type, but they are very expensive at $50-80. I bought a house brand one from TCP Global, aka Airbrush Depot, that works very well for under $30. I also replace the 100 psi, tiny pressure gauge with a larger 2.5", 60 psi pressure gauge. In a good regulator, the pressure reading should not change more than 1 psi when the airbrush is on or off.
Don't get the cheapie kind airbrush regulator which has only a orifice for the air. The control is coarse and the reading fluctuates. Good luck.