For those of you that enjoy a challenge, here is a print that I have been struggling with for weeks: http://www.thingiverse.com/thing:779362/#files
It's a Darth Vader ring. I have not been able to get a finished print using Slic3r no matter what I tried. I have managed to get a complete print using CraftWare, but the quality is not great. I'm trying to print at 50 microns.
If anybody can get a nice print of this please share your settings and bask in the glory!