Sunhokey Prusa i3 X carriage (auto bed level arm + LM8UU bearings)

X Carriage for Sunhokey Prusa i3 with auto bed leveling arm and LM8UU bearings.

Any R/C mini servo should work, I used a Hitec HS-55.

This video (Youtube user: ZennmasterM) walks through auto-leveling setup: https://www.youtube.com/playlist?list=PLU2kePyB_WAZlCnA-fMbLDbGeFXTffiP9

Hot end fans are from here: http://www.thingiverse.com/thing:1235809