Homebrew PCBs

> Ron,
> It seems is about a specific PCB software, and a little bit 
complicated.
> I've done my 'square' example manually, using "Add Polygon"
> I'd like to get that automatically.
> 
> Let say one can do the job as regularly in its PCB software 
(as 'round'), 
> export it as XGerber and transform that export, automatically, into 
a 'square'.
> Preferable XGerber or HPGL 'square' , for future CAM or Photoplot 
production.
>


If you make pads that are 80 mill square, then two pads of an IC have 
a 20 mill seperation, or one pass on each pad for isolation milling.

Set your line widths to 80 mill and then all your connectors are 
square and require only one pass as well.

WinQCAD allows you to set your line widths as you like, then in 
handRoute, select manually change line widhts.  then just a single 
mouse click on each line segment (lots of clicking) and you can run 
across the board changing line widths as needed.

Another way might be more automated.

If you can isolation route your board on one layer, then select that 
laywer and isolation route that and just keep going until your lines 
are where you want. 

Of course this means you have to select lines from different layers.

sorry, don't know an automated way.


Dave