[carlnpa]

I was looking on the Igus web site at the N27/w series linear bearings and some of their other products. I'm starting to plan machine #2/upgrade to machine #1(JGRO). The skate bearings are hard to adjust and the time/cost factor is really creeping into this. Does anyone have some specific recommendations on Igus to hold +-0.005 in the Y and Z axis. How about N27 or the square w (6/20mm) on 1.5in 8020 rail for the x axis? I was looking at the K2 machines, it looks like they are using 8020 or similar for the x axis rails.