Re: G-Code Arc drawing question

Just tell your cam program your mill controller software doesn't use
g02 g03 code. It will then post process arcs as straight line
segments.

--- In CAD_CAM_EDM_DRO@y..., "Marcus & Eva" <implmex@a...> wrote:
> Hi Dan:
> In the CAD CAM programs that I have used, you can follow a curve
in
> little bitty linear moves if it has been created as a spline.
> Either a NURBS spline or a Bezier spline will work equally well.
> The toolpath will be all G01 moves.
> The systems I have used allow you to specify the maximum deviation
of the
> line moves from the spline that they are approximating.
> I think Autocad can make something called "polylines" which probably
comes
> to about the same thing in the end, but the geometry you get on the
screen
> is actually a bunch of little lines.
> Beware trying to dump this geometry into another CAD or CAM program;
often
> it will not chain together properly, and you can waste hours fooling
about
> with it.
> Cheers
>
> Marcus
>
> -----Original Message-----
> From: Dan Statman <dan.statman@r...>
> To: CAD_CAM_EDM_DRO@y... <CAD_CAM_EDM_DRO@y...>
> Date: Thursday, November 15, 2001 9:01 AM
> Subject: [CAD_CAM_EDM_DRO] G-Code Arc drawing question
>
>
> >
> >When I try out all of the demo versions of the CAD programs and I
draw
> >circles and curves, it always converts them to the G-Code for
cutting arcs
> >(makes sense). Is there a way to tell the Cad program to break the
arcs up
> >into tiny line segments so that I get the G01 output (many lines)
instead
> of
> >G03 (or whatever the arc code is)? The arc cutting does not work
when the
> >Y-axis is scaled from 0 to 360 degrees and the x-axis of the part
is scaled
> >from 0 to 0.100"
> >