Re: CNCing a big surface grinder ?

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Kim Lux <lux@d...> wrote:

> So do you think that it would be feasible to replace the hydraulic

drive

> system with a high speed servo system ? This is quite interesting
> because most of these units even today are hydraulic drive...
>
>

Kim,

The way to do it is use hydraulics on the longitudinal feed and
servos on the cross feed and downfeed.

It makes no sense to use a servo/screw on the oscillating table.
Besides the hydraulic circuitry to oscillate the table is trivial
and reliable.

Doug