Re: [CAD_CAM_EDM_DRO] Re: CAM software with 2D relief capabilities

If you have a typical flat surface such as the bottom of a pocket and
imagine it was plastic. Then you were to apply heat and watch it slump
downwards as it started to melt but was attached by the edges so as to form
kind of a bubble.
That's the kind of surface I would like to create.
I think I remember seeing this from a Cimitron demo for making coins. It was
very expensive and about 8 or 10 years ago.
I was thinking maybe some of the more affordable packages may now have this
feature.
Thanks,
Brad

----- Original Message -----
From: "Fred Smith" <imserv@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Saturday, November 22, 2003 8:36 PM
Subject: [CAD_CAM_EDM_DRO] Re: CAM software with 2D relief capabilities


> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "Brad Eyben" <abeyben@t...>
> wrote:
> > Does anybody know of an affordable CAD/CAM package that will
> produce a
> > surface from a 2D contour which has a relief up or down.
>
> It may be very helpful if you explain your question a little better.
>
> In Cad-Cam a surface is usually defined as a non-flat construction.
> A plane is used to define things like the flat sides of rectngular
> shaped stock, the bottoms of pockets, and the flat areas surrounding
> relieved letters and designs. These are usually cut with flat
> bottomed cutters, either end mills or router bits.
>
> A surface, which is non-flat is usually machined with a full radius
> ball end mill or Cove bit. Sometimes a Bull nose is used, this
> combines the flat end with radiused corners. In fine jewelry
> machining a sharp angled bit is used to carve tiny details that it is
> impractical to machine with a radiused cutter.
>
> Simple pocketing with islands will create raised or inset letters and
> complex shaped contours. Is this what you refer to when you use the
> term relief? Pocketing with angled cutters will also create a 3D
> appearing letter or contour.
>
> Most of the inexpensive cad-cam systems will produce one or more of
> these kinds of toolpaths. If you are more specific about what you
> want to cut, a more precise recommendation can be made.
>
> Fred Smith - IMService
>
>
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