I'm getting there! Will do a full write up at the end (if there is such a thing! ).

I need some help if I may. On the x axis (long axis) when the gantry approaches either end of the bed, the ballscrew gets tighter. It's not just one side, happens to both. Something must be bowed?Click image for larger version.  Name: uploadfromtaptalk1457817114139.jpg  Views: 692  Size: 239.0 KB  ID: 17912Click image for larger version.  Name: uploadfromtaptalk1457817145642.jpg  Views: 661  Size: 289.0 KB  ID: 17913Click image for larger version.  Name: uploadfromtaptalk1457817176898.jpg  Views: 658  Size: 101.1 KB  ID: 17914