This is linear rail upgrade kit for D-Bot.
You need 1x400mm lenth 12mm rail for X-axis and 2 x 280(250mm) rails for Y axis.
Rail carriages - MGN12H.
Replace "R" 2040 V-slot railing piece for 2020 of the same lenth.
Rail_center_tool is used to fix 12mm rail in the center of 2020 profile.
!!! This thing is optimized to be printed with PLA. If you use ABS (or outher shrinkable filament) than set scale to compensate the shrinkage, or use shrinkage compensation function !!!
All other parts and assemble guide is located here: http://www.thingiverse.com/thing:1001065