Re: [CAD_CAM_EDM_DRO] Looking for help in converying AutoCad 2002 to NC

Shawn, I am in the very same predicament. I use Acad 2002 at work, and the
CAM apps all seem to puke on its dxf output. Have decided to try some
other CAD software for designing complex jobs, but it has been recommended
that I try some NC converter appps such as AutoEditCNC and others
similar....to learn basic G&M codes and canned cycles first before trying to
output more complex code automatically from a complex CAM app. Theory bding
that if you don't know exactly what each g or m code is for, it will be
impossible to follow a cam app's spaghetti output. A more simple approach
I believe is to draw your part for 2-1/2 dimension cutting, and add on
different layers, the appropriate offsets (1/2 cutter width) around the
outline of the part's original design in Acad, then import those "toolpath"
layers for the g-code conversion. You then presumably do repeats of the
same toolpaths at different z levels to machine the third depth. Just seems
very archaic to me, to do things that way, but I guess it's a starting point
and is likely the quickest for simple parts. Email me direct if you want,
to further discuss. Surely others also with more experience will want to add
for clarity.

R. William Kichman, P.E.
Kichman Engineering Associates
103 Old Furnace Road
Cornwall, PA 17016-0643
tel/fax 717/270-0714

----- Original Message -----
From: "shawnusa2002" <shawnusa@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Wednesday, October 22, 2003 8:20 PM
Subject: [CAD_CAM_EDM_DRO] Looking for help in converying AutoCad 2002 to NC


> I need help. I know how to draw in Autocad 2002, but is there any
> special things I need to do like draw on diffrent layers or
> something to prepare my DXF for conversion to a NC file? Do they
> need to be saved in certain versions of DXF? The reason I ask is
> Autocad allows you to save DXF's in 2002, R14,R13,R12 and It seems
> most of the Demos for conversion don't even recognize anything but
> R12 DXF files. So fare all attempts have been a mess (mEaning, the
> CAM software produces odd results or the paths don't flow correctly.
> Anyway, I thought I would ask you all for pointers, tips or best yet
> how to's that you may know of. Possibly some DXF to NC programs or
> easy to follow CAM software demos. I'm open to any ideas. I want to
> figure this out and get to cutten.
>
> Thanks
>
> Shawn
>
>
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