Or, you can just do like I did and stop thinking about doing a DIY rail system and buy one. When it was all said and done, I was over 1/2 the cost of actual THK type linear rails, so I just opt'd for them instead. I've not regreted it either.. mind you the machine isn't running under its own power.. yet.. in a few week's it will be.
Jerry [boy you guy's are diggin up old threads ]
JerryFlyGuy
The more I know... the more I realize I don't
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)