Printer Brand: Printrbot Printer: Simple Metal Silver Rafts: No Supports: Yes Resolution: 0.2-0.3 mm, you choose. Infill: Yes, I use 30-50% Use your favorite settings and slicer for this part, it is pretty forgiving and should function properly even if it prints rough or ugly. I usually try to avoid supports to keep my stress levels at a minimum, but the bearing housing benefits from the support here. I included my SolidEdge .par (part) file if anyone would like to improve the design, should open in SolidWorks. I used MatterControl ( http://www.mattercontrol.com/ ) to slice and Gcode my STL. I did this because it lets you set the distance that the support is offset from the part, and I really like this feature as I think it improves the removability of the support material. The support material inside the bearing housing popped right out in one piece cleanly. I tried Repetier ( https://www.repetier.com/ ) which I usually use, but didn't like how the support removed leaving the bearing housing rough and required a lot of clean-up. I did the Tri, or three legged adapter to reduce print time and material. In the end, I really like the simplicity of it, that it is small and that it works smoothly. MatterControl also has a nice feature that allows "Support Everywhere". It doesn't actually support everywhere, but this is how it is described in the software: "Generates support material starting on top of internal surfaces. If unchecked support will only generate starting on the bed." I really like this feature.