I'll start with the spray booth. I took an old disfunctional computer =
monitor and ripped it of its content. Then I wrapped it in tape to make =
it airtight, drilled a hole in the back and attached a 230 V small fan =
to the outside of the back. Then I stuffed the back of the inside of =
the old monitor case with a "Hepa-filter" cut to size. Not fancy at all =
but works quite well with acrylics/alcohol. The Hepa-filter seems to =
absorb most of the fumes/dust. This was made in an afternoon and works =
really great. I guess you could improve on the design...
So for the question: I have a compressor of a brand called "Werther =
International"(?). It's a small compressor with a diminutive air-tank. =
The question I have is how to read the pressure gauge. The more I think =
of it the more confused I get. The compressor is a fairly simple design =
with a "waste-gate" attached as a shunt (in parallell) with the =
air-outlet. By opening the shunt I can lower the output pressure. The =
pressure gauge is, as I understand it, measuring the pressure at the =
outlet. Now say I adjust the shunt so the gauge reads 20 psi when I'm =
not pressing the trigger on the airbrush. Then I press the trigger so =
the gauge reads 15 psi. Am I spraying with 15 psi or 20-15=3D5 psi? =
The more I press the trigger, the more air comes out but at the same =
time the measured pressure get lower. So how do I read this gauge? If =
the gauge measures the spraying pressure the only way to spray at 30 psi =
is not to press the trigger at all!
Please help me!
- posted 18 years ago