what you need to know (and you gave the 'answer') is the cubic feet/min that the compressor puts out @ 40 psi...your figures state 7 cu. ft./min, but don't include the applicable psi,but I'm guessing with a number that high for a 1.5 hp compressor it is @ ~40 psi...from looking at the picture it appears as if the unit is screw driven, which to me means that output specification is probably a tad high for real world usage....I think that using a gravity feed gun (HVLP I assume) and a smaller air nozzle you should be OK, but on the limits....
as I noted, it appears from the picture as if the unit is screw driven, which means its oil less and you won't need an oil trap, though you WILL need a moisture trap...if you find yourself running the compressor much while spraying you will probably need to set up a proper spray system, which is at least 25' (3/8")of hose to your moisture trap (going up on the air for most of it's length then down to the trap), then run your gun's air hose (5/16" minimum and preferably 3/8") from that...why?, because you need that amount of line to let the air cool down and condense, otherwise the moisture will not be properly trapped by the filter ( a REAL spray system would have 25' of iron pipe....you can also hook up a dessicant filter at your gun for a final removal of moisture (and oil too boot)...the dessicant filter should be hooked up to a pressure pot's inlet if you go that route (as you don't want any stray moisture being fed into the fluid container)...assuming you are spraying one guitar at a time I would think that a gravity feed gun would be the route to follow...
|
![[:Y:]](./images/smilies/smiley20.gif "Thumbs Up")