Makerfarm Prusa I3v ZAxis Protectors

The Z Axis screws just kind of hang out in the open on the Makerfarm Prusa i3v, just waiting for something to snag and bend them. These end caps protect them from that. They are made to pressure fit 625 size bearings, which I had laying around from my ShapeOko. The left side protector replaces the bottom plate of the spool holder, as you can see in the picture.
8/14/14: Added STL files without opening for bearing, since it doesn't really need the bearings, and most people won't have bearin