E1x Printer Files - "Lulzbot special"
BOM located here - http://goo.gl/RWq3ZI
Wiki page (with some assembly instructions) - http://reprap.org/wiki/E1x
If using the 300x300 Y Carriage for the TAZ and the accompanying borosilicate glass plate, these corner pieces are recommended: http://devel.lulzbot.com/TAZ/Juniper/production_parts/printed_parts/bed_corner/
Otherwise, edit SCAD/lulz-cornermount to suit the size of your printbed. The STL is pre-sized for a 12"x12" piece.
It is recommended to increase the Y extrusions to 485mm and the Y smooth rod length to 505mm. It may be advantageous to use 10mm smooth rods instead at these lengths. For 10mm smooth rods, either use LM10UU bearings or RJM-01-10 polymer bushings (https://www.lulzbot.com/products/solid-polymer-bearing-rjm-01-10mm) or nylon.
10mm bearing holder in STL Files is a copy of and was made by Lulzbot: http://devel.lulzbot.com/TAZ/Juniper/production_parts/printed_parts/bearing_holder/