Based on Matthew Sorensen gist of bearing, I've added some features, to make is a slew bearing (Picked up Idea from http://www.thingiverse.com/thing:321679)
This is a work in progress, you should better check out the scad than use customizer, at least for the moment.
This is a proof of concept for BQ Ciclop's bearing replacement.
Minor update, parametric ball diameter
Theres now a bunch other configurable parameters on customizer!
Use Customizer to print the parts splitted (Outer Race, Inner Race Above and Inner Race Below)
Get a hundred BB 6mm balls (or other diameter to fit your design)
Print with 25% infill, no brim, no support. Outer race may need to print slower to get a fine race track.
Assemble and screw