X-Y Table, Rotary Table for CNC INFO

Hello Gang,

Seems to me that a small CNC X-Y and rotary table setup could be plopped
down right on the table of a mill rather than doing a conversion on the
mill itself. While the attention given to leadscrew issues and
electronics is important, right now I'm greatly interested in whether it
would be economical to build precision tables for CNC and would
appreciate hearing of any websites or publications that deal with design
and construction issues with tables, bearings, guides, etc.used in CNC
setups.

I have looked at the linear motion catalogs of the major vendors, and
have a clue as to the design issues involved. I'm more interested in
info that could be used with adequate tools and skills in the home or
small business shop. A $23,000 HAAS rotary table is a bit out of my
league. :)


Thanks,

Larry Braden
Catonsville, MD