Hi Thomas

Since you seemed to have purchased stuff from CNC4you have you asked Brian for advice?

In some ways I hesitate to mention this in a public place because I have found Brian to be so incredibly helpful
that I actually worry that he is spending too much time helping his customers - how many suppliers can boast
that level of client care, he really does want to make sure all his customers are happy bunnies and I count myself
as one of the long eared breatheren.

Kind regards

Jon

Regards unsupported rails and so on. What I learnt from talking to Brian is that its a matter of horses for courses. Supported profiled rails with carriages offer greater precision than unsupported round rails but the lack of "give" in such rails and carriages places a lot more empathsis on a precision build, a tiny mis-alignment or deviation from parallel can result in resistance which can slow the machine down or worse. For my large router bed I choose to go the route of supported profiled rails with carriages but I can see that a future project planned for a plasma table would ideally use a rail set up more similar to yours.