This is a mini version of my other grinder, This is part of a request and i'd like to know what results people are getting. I'm slicing it with Simplify3D at .16mm layer height and 65% infil with concentric external fill. As before print the teeth solid so they don't break as easily and don't over pack this or use anything super sticky. I've had pretty good luck with the one I printed so it can be usable but you may need to experiment with your print settings and be ready for some failed prints.
Be careful to print the teeth solid and have them on a few solid layers.