I'm looking to up my finishing game for some of my CNC carvings and am contemplating an airbrush, My final decision is down to two different models. I would like some input from some of you guys or gals that use airbrushes for finishing your work.
I am looking to use acrylic paint and also Trans Tint dyes on my projects.
Don't overlook the more mundane applications of an airbrush...for many years, some of the people who maintain high quality varnish work in marine applications have had great luck with using airbrushes to apply finishes to both interior and exterior marine woodwork. It takes a little practice, but the results (and life) of finishes applied this way can be spectacular. We're not talking about vast expanses of woodwork here, but the little trim pieces, railings, etc that aren't that much different than the non-cabinetry projects produced by CNC enthusiasts.
In most cases, you wouldn't break out a spray rig to use for a 1' x 2' sign or a box. Dealing with the cleanup between coats would take bunches of time and effort in something most of us hate doing. Airbrush cleanup is, for the most part, pretty easy. Small batches of finish are easy. "Fixing" your finish thickness is easy (and uses little in the way of material). Overspray containment is easy. Multiple light coats are possible with minimal drying time between. Check "airbrush" at Harbor Freight.
I use it mostly for spraying small toy parts and wheels. I've used it for spraying pockets I've cut into games. I may try it on vcarve lettering, etc. You do have to thin most acrylic paint quite a lot, so it needs lots of coats. Brushing vcarve is one coat and done. Then I have to drag the compressor into the garage to paint. Most larger pieces won't fit onto my small spraying desk.
I'm thinking you could do some cool stuff if you set up one of those "pen trace" attachments, put the image on the board, then airbrush the perimeter of the letters ...and THEN V-Carve it. If working with wood, you'd likely want to "pre-seal" to keep the acrylic from soaking into the fibers near the surface and leaving a "bleed" effect.