Dan,
Will not do any "heavy drilling or milling".
Example: Say I turn a tapered profile and it has a flange on the top of it. Without removing it from the lathe i will be able to flute part of the tapered section, drill around and into the face of the flange. So I am combining some of the features that you would normaly do using an rotary table on the mill. Additionaly i can do engraving around the piece. Save a lot of time.
Since the lathes axis are very accurate i can do some realy nice peck drilling of small holes ( thank's to Melee's macros he just posted). I have not tried profiling using Copy cat on the lathe yet,but, again combining some things will just make makiing some of the small parts for a model so much easier and less time consuming.
I can easily swap my drives axis cables around and manipulate the Gcode.
It all depends on what i am going to do.
I don't know how my barrel for the 629 will prfofile out, but should be interesting. I want to minimise some of the hand work.
Hope that gives you an idea of use,
RICH
BTW, You realy should have the A setup so you get a nice ratio which is divisible by 360 evenly. May need to make my owne pulleys and not use the 10:1 gear reducer.