I plan on making a purchase on a 3D printer in the ~2k range specifically for ABS plastic enclosures for electronics, meaning a complete box with a removable hood and holes for ports, switches, and such. For example these types of enclosures:

http://www.polycase.com/surface-mount-dc-series

So I need something accurate (to fit cutouts) and threaded holes. If the printer is accurate enough to make plastic screws, that's great, but if I need to get the screws externally that is fine too.