HPGL CAM was Re: TurboCad CAM???

Hello,

There are more than a few systems which use HPGL to do 2-1/2D work.
The SP (Select Pen) command sets depth of cut, and the VS (Velocity
Select) sets feedrate. Sometimes the feedrate is combined with the
depth, as in AhHa's control.

Hope this helps.

Ballendo

--- In CAD_CAM_EDM_DRO@y..., CL <datac@l...> wrote:
<snip> But, think for a moment as to how hpgl has been used by the
newbie over the years.
> He creates a drawing, makes different entities different colors,
then exports hpgl
> "code" per "part" or "line" he wants to cut, more often than not
using the (export)
> "Selected Only" checkbox to its full, or the option "by color".
Often, one would or
> could re-assemble these independent sections of code into one tool
path file.
>
> Additionally, In many cases, the hpgl would even allow some
division that could be
> applied for depth and or speed via the "Pen Color" commands sent
with the file. So,
> some "division" for "cutting" was there. This truly is the poor
mans Cam.
> Unfortunately, many have been forced to use it on the commercial
engraving machine
> level as the results one needed were not always easy to get with
the commercial
> software packages when using hpgl.
>
/terms/