Well it's pretty much done (again lol) I changed out the roller chain with CRP rack and pinion drives. I also change to THK SHS20 and 25mm rails and bearings. The. Machine runs very smooth. I'm getting right around 780 IPM with the 3:1 reduction, I'm running the machine with a G540. The only thing to do now is put the controller and PC in one box and mount to side of machine. What do you think.