Re: gEDA-user: How to do PCB Autorouting with non-plated holes

[Colin D Bennett <colin@xxxxxxxxxxx>]

On Tue, 23 Aug 2011 22:53:23 +0200
Kai-Martin Knaak <kmk@xxxxxxxxxxxxxxx> wrote:

> Cory Papenfuss wrote:
> 
> > I thought about that... making different footprints that don't 
> > have copper on the component side of the pins.  Since that would
> > require making new footprints for pretty much everything,
> 
> Well, you could do the heavy lifting with an awk script: 
> 
>  If the current line is a pin,
>     set the diameter of the pin to zero and add a hole flag
>     ouput a round pad with the diameter of the pins annular ring
>  else, 
>     output the current line unchanged.   

Could you do this on the layout (.pcb file) after all elements are
placed so he would not even need to create new footprint files?

> > I was hoping for a 
> > different solution... :)  It seems like it would be a relatively
> > common thing for hobbyists to want (whether it's a milled or
> > home-etched board), so I thought there might be a setting on the
> > autorouter config to "ignore component hold plating" or something.
> 
> IMHO, the copperless pin solution is superior. It models the layout
> like it is in reality.

Besides the autorouter, I have made the same errors with manual routing
on self-fabricated double-sided printed circuit boards, which did not
have plated through-holes, so that is a significant and practical
reason that modeling the board as it is in reality is ideal (rather
than only fooling with the autorouter).

Regards,
Colin


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