Re: [CAD_CAM_EDM_DRO] Re: EMC Contouring Settings/ downloading BDI

Bill Vance wrote:

> On Fri Feb 1 23:21:00 2002, Jon Elson, <elson@...> wrote:
> >
> >A is NEVER a linear axis. It is all clearly defined in the RS-274D
> >specification.
> >A B and C are rotary axes parallel to the X Y and Z axes, respectively.
> >U V and W are auxilliary linear axes parallel to X Y and Z, respectively.
> >So, if a vertical spindle is Z, the knee vertical motion would be W.
> >A rotary axis parallel to the X axis would be the A axis. A plain
> >rotary table would be the C axis. There are many more special purpose
> >axis definitions in the spec, but these are the common ones.
> >
> >Jon
>
> Which categor(y/ies) would a universal head come under?

Ummm, what's a universal head? Is that a Bridgeport with the two axis
knuckle joint between the head and the ram? That is not a CNC controlled
motion. As for multiaxis spindle machines, there are so many varieties
in how the axes are stacked, and the range of motion of the axes, that
every one is pretty much different.

Jon