A good method for finishing FDM 3d printed patterns

I will fork the discussion of my part back to its thread:
https://forums.thehomefoundry.org/index.php?threads/pattern-rapping-fail-sailboat-part.2268/page-3
Thanks again to @Rocketman for the links and the pics of the great work on his patterns/parts.

 

Tops, try a different airbrush? It took a little adjusting to get mine to lay material down nicely, I tested on some cardboard first to get a feel for it.

I just eyeballed my acetone/spot putty mixture, not sure where it ended up at in ratio.
I did note that too much air was letting the mix dry before hitting the pattern - perhaps this is why you're getting dust that wipes off yours?

My HF airbrush states to run at 30psi.

Once adjusted, if I hit one area too hard, it would pool up enough to begin to run ever so slightly. That seemed to be the sweet spot for application.