Re: ACAD 2002

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Blue" <jo001k1132@...>
wrote:

>
> Hi,
>
> I'm using ACAD 2002 and drawing in solids and then hacking bits

off to get

> the shapes I want. I have two questions:
>
> 1) Why can no-one see my drawings when I send them as Dxf's, is

there a

> setting I can change to make this happen.
>

Acad is/was based on the ACIS solids kernal. Other ACIS based Cad
programs of about the same era can sometimes read the solids that
are saved in an Autocad DXF file. However, there is no guarantee as
AutoCad no longer licenses the acis kernal on a current basis.

To save a viewable DXF for sharing with another cad program, you
need to convert the acis solids into a polygonal surfaces format(
like triangles). Only the triangulated surface will be available,
none of the goes-in-tas that are used in the ACIS solids. That is
OK for concept images, but it is a poor excuse for a shared design
file. Saving the DXF file as an older version can automatically
make triangulated surfaces instead of the ACIS solids. Again this
may not be useful for design sharing.

If you have an iges(or .igs) file export capability, that is a much
more reliable format for sharing ACAD solid model files. Any decent
3D cad-cam program will be able to open and process iges files.


Fred Smith - IMService
http://www.cadcamcadcam.com/hobby