Re: X-Y Table, Rotary Table for CNC INFO

Hi Larry,

First off, it's a GREAT idea.

The limitations are the strenght you put into the unit and the
strenght of the base ie: the machine. accuracy will be reflected as
the sum of all the errors, so table locks need to be solid.

Also makes intorduction into CNC much simplier for guy with a manual
bridgeport !

The only mod to the base machine is the quill.

Dave


--- In CAD_CAM_EDM_DRO@yahoogroups.com, Larry Braden <lbraden@c...>
wrote:

> 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