Newbie

Dear Group,

I have been watching and for a while from the group and I am finally
getting close to starting to build a CNC router. As always there are
a few questions I either missed the answers to or didn't understand.

First I have been using and enjoying Rhino. What is the best CAM
software for converting a Rhino drawing to run EMC?

I once saw someone mention a rack and pinion drive for a long axis.
What kind of tolerances can this arrangement maintain?

Thanks in advance for the help,

Mike