I am working on my first actual design-and-print project which is a cabinet replacement knob in ABS designed to take a #8 screw. The plan is to tap the hole but I may also just try a sheet metal screw directly. The basic shape is correct but the print always comes out with a gap somewhere in the exterior surface. I’ve attached a photo.
Also, what SLIC3R settings are best for trying to get as dense an infill as possible for the screw to be securely fastened?