GEEETech Prusa i3 Pro B - Y-Carriage Linear Bearing

Replacement for linear bearings of the Y-carriage for GEEETech Prusa i3 Pro B.
A suitable material for printing is a PLA. For "burn in" please read the "Post-Printing" from http://www.thingiverse.com/thing:1196801

Changelog
* 10/30/2016 - Updated to version 2. For this version I used design from:
http://www.thingiverse.com/thing:631285