RoBo3D R1 Solenoid Auto-Leveling

This is a RoBo 3D autoleveling alternative that replaces the stock fan shroud for the hexagon with added capabilities to support a solenoid actuated auto-leveling.

Check the instructions for a build guide, or visit the robo3d forum post here: http://forums.robo3dprinter.com/index.php?threads/mike-kellys-solenoid-auto-level-for-stock-r1.3864/#post-34724