Tools For 3D Modeling & Printing
Just in case you were wondering what paint works well with 3D prints, this is what I use. I'm not promoting Walmart or the paint brands—there are many places you can get good paint—but I buy the cheap stuff at Walmart. HOWEVER, some paints cover better than others and you may find you have to let the paint dry and repaint it several times before you get the rich color you want. More expensive paint MIGHT cover better.
You always have to give the prints a good coat of primer. I typically use the Rust-Oleum 2X Paint+Primer. I suspect any primer will work, but this is what I like. And, if you're just doing one color, you're done after spraying. AND I like to use Matte paint. It usually takes the other paints better.
Finally, you want to hit the piece with a clear coat of paint. I prefer gloss or simi-gloss, but satin or matte would work just as well. Not only does it make the paint seem to smooth out, it also helps secure against the paint scratching off. Again, I get mine at Walmart. Again, Rust-Oleum 2X is my favorite, but you do you.