How is a double action air brush used as a single action? Merely by setting the air pressure to 18-20 p.s.i. or so while the trigger/lever is at fulll travel (pull)? Could use some clarification. I’ve read many threads on air brushing forums but no clear answer…thanks.
On my airbrush (a cheapo Hardly Frieght model) there’s a little screw that serves as a stop for the “pull back” movement that controls paint flow. I just adjust the screw so I get the desired density or mix I’m looking forward and leave it at that point. Just pushing the button down releases air and the brush works as a single action. However, if you pull the button back, you will still get more paint in the mix, because the stop only limits how little paint flows, not how much.
If you don’t have a stop screw you might try backing the needle out a little bit at a time until you get the effect you want. Adjust it so it doesn’t “shut off” so to speak.
Lou
I have a Badger universal 360. I used a small tie-wrap around the body behind the trigger to limit the travel. Then I just have to press the trigger and pull it back to the stop. Of course you need to set the point where the trigger stops for best paint flow. The tie-wrap allows some movement if it is twisted or turned while making the adjustment.
However, that was still a pain, so I decided to get a single action internal mix brush. I liked the internal mix better than the external mix brush.