Hi, one of my printed versatile (formerly strong and flexible) pieces has a rough edge even though it had a fillet in the file. I'm guessing this is probably due to print orientation and size limitations. I'm wondering if it's possible to sand it without damaging the color? Does the colorant permeate the entire object or will I end up with white showing through? Any suggestions on what to use and how to smooth it? I'm not trying to remove the texture, just a sharp edge. Thanks!