RE: [CAD_CAM_EDM_DRO] Re: CNC Milling PCB's

Much like others are describing. After a week or so of using Protel for
board layout, use the Protel CAM processor and export the gerbers then
convert them to eagle scripts to import into eagle then converting to
outlines and outputing G-codes and then post processing them. Also I
was taking the drill files and seperately processing them. And finally
taking a board outline and processing that.

And after all that I could not work with oval pads.

The whole process was very manual and a PAIN!

Thanks to some help from this list I can now generate outlines in
Protel. I also do all the CAD work for the board outline. Then I run
the Protel CAM processor to get gerbers for top layer outline, bottom
layer outline, board outline (including tool dimensions) and NC drill
file for the holes.

I then have a post processor (Basically a scripting program and script)
that takes the files and converts them to G-Code along with tool changes
and clearance heights.

Finally I just load the G-Code files into my MaxNC and run them in
order, getting a completed board out at the end.

This new version uses far less programs works with oval pads and is a
lot more automated. Plus I have more control in Protel as to what
happens.

Chris Coley.

> -----Original Message-----
> From: Tony Jeffree [mailto:tony@...]
> Sent: Wednesday, November 28, 2001 2:53 AM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Re: CNC Milling PCB's
>
>
> Ian -
>
> Thanks for the very informative post - it is good to see a clear
> description of how this can be done, as this is something I
> need to be able
> to do in the next few weeks.
>
> A question though...it sounds like you are using two PCB
> layout packages -
> one that generates Gerber output that you then post process in
> Eagle. Wouldn't it be simpler to do the layout in Eagle to
> start with, or
> am I missing something here?
>
> Regards,
> Tony
>
> At 11:03 27/11/2001 +0000, you wrote:
> >Around 6 Weeks ago I decided as I had a CNC mill I should
> produce PCB's
> >by milling an isolation slot. During investigating the
> process I posted
> >to various news groups for information and several people
> asked me to
> >let them know the results of my searches.
>
>
>
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