Nice! Planning on doing the same with mine. My main issue is the bed shaking/racking at higher speeds because of how the belt is attached so far away from the actual bed, it's sort of a cantilever. New bearing, longer bearing, new rods, igus bearings, nothing seems to change that ripple I get on the y axis, so going to an extruded aluminum build would let the belt path be closer to the bed.

 

Hello John,
I'm interested in knowing how your rebuild project to progressing. Do you plan on updating your project anytime soon?