I am in the process of designing my own CnC Plasma Cutting Table, starting with a 4x4 table that could be expanded to 4x8'. A small shop table aimed at general cutting and some art work.
I find 3 different options for linear transport ... V-Rails, Thomson Bars, Linear Rails, in roughly that order of cost.
If cost were not a factor, is one of these more appropriate than the others for the Y and X axis?