Hello,
I'm thinking about doing a Gatton CNC machine. I like the idea of buying the parts as I go as to not affect the household budget too much. It is a plywood machine that looks like most use NEMA 23 motors on. I have some questions:

1) What kind of surface finish do CNC routers leave? Would there be a lot of sanding to do?

2) How fast would this thing cut with the NEMA 23 motors? Could the plywood frame even handle the bigger motors and feed rates?

3) What kind of accuracy would something like this produce? Would it cut as straight as my table saw?

4) What am I missing here? I'm obviously new to CNC. I envision using it for cabinet panels, 3D carving, signs, intricate curves, dadoes, etc. It seems like it handles some router table functions. I HATE routers. They are noisy and scary. It seems like a CNC with a spindle would be quieter. And safer because I wouldn't have to hold the machine with the spinning death bits in my hands. And maybe I could do something else while it works.

Looking for a less expensive way to learn something new and expand my capabilities.
Thanks!