Re: [CAD_CAM_EDM_DRO] Machining smooth Curves

Rab,

That is a pretty neat web site you have there. I found your links to be
very interesting too.

Do your scripts run with the Max program running in the background, or do
they stand alone?

Thanks,

Tom Eldredge

----- Original Message -----
From: <rab@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Tuesday, June 19, 2001 6:20 PM
Subject: [CAD_CAM_EDM_DRO] Machining smooth Curves


> I really don't know that much about this subject, but have seen
> references to NURBS and bezier CAM controls, which sound very
> interesting for smooth, fast machining.
> I use bezier curve toolpaths prior to producing G-Code from them as a
> large number of small segments, outputting the actual curve would
> appear easier, more accurate and faster than converting to linear
> moves or even a series of arcs.
> It would seem to make sense to interpolate a curve at the time that
> the step/direction signals are being generated rather than at the G-
> code stage, as although the curve would still be composed of small
> linear steps, the resolution would be at the very limit of what your
> CNC machine could handle.
> Are there any motor driver control programs that work with curves
> instead ( or as well as G-Code ) ?
>
> Rab,
> Rainnea Graphics
>
> PS. I've put some more stuff on my web page if anyone's interested in
> my CNC Taig Mill: www.project.rainnea.com
>
>
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