Update : 2018-06-11 : guide for SC12UU added, rod center to center distance is 158.5mm
Bed plate drill guide for mounting SC8UU bearing block for use with linear bearing or igus drylin and linear rods to replace the y-axis wheels.
The resulting distance is 161mm center to center between linear rods. If you are using those big leveling knobs, you will have to replace them with smaller ones.
For best results, print 2 of the guide one for each side. Use 3 of the bed plate bolts and leveling knobs to secure drill guide to bed plate or 3 sets of m4 bolts and nuts per side. Use a 4mm drill bit with your power drill or drill press.