kicad-developers team mailing list archive

[Darrell Harmon <darrell@xxxxxxxxxxxxxxxxxxxxx>]

I'm going to make an attempt at a complete patch. It may be a while
before I get time and I'll have to spend some time learning about Kicad
internals.

Darrell Harmon

On Mon, 2018-04-16 at 11:58 -0700, Seth Hillbrand wrote:
> Hi Darrell-
> 
> Please see https://bugs.launchpad.net/kicad/+bug/1466962 ;
> 
> Pads on inner layers is a good idea but it needs a full
> implementation.  This would include (at a minimum) adding the pads to
> arbitrary layers (not just In2_Cu), new netnames layers, GAL layers
> and zone filling connection/keepout.
> 
> It's a bit of an undertaking but if you're interested in helping out
> with this during the V6 cycle, you can take on the bug report and
> submit a patch for it.
> 
> Best-
> Seth
> 
> 2018-04-16 8:55 GMT-07:00 Darrell Harmon <darrell@harmoninstruments.c
> om>:
> > Inner layer pads are useful for microwave filters implemented as
> > Kicad
> > modules, allowing tracks to connect to them.
> > 
> > I've made a quick and dirty change to support the board I'm
> > currently
> > designing:
> > 
> > --- a/pcbnew/class_pad.cpp
> > +++ b/pcbnew/class_pad.cpp
> > @@ -1248,6 +1248,11 @@ void D_PAD::ViewGetLayers( int aLayers[],
> > int&
> > aCount ) const
> >          aLayers[aCount++] = LAYER_PAD_BK;
> >          aLayers[aCount++] = LAYER_PAD_BK_NETNAMES;
> >      }
> > +    else if( IsOnLayer( In2_Cu ))
> > +    {
> > +        aLayers[aCount++] = LAYER_TRACKS;
> > +        aLayers[aCount++] = LAYER_PADS_NETNAMES;
> > +    }
> >  
> >      // Check non-copper layers. This list should include all the
> > layers that the
> > 
> > The result looks like this (purple fingers are a polygon):
> > https://harmoninstruments.com/images/innerpads.png
> > 
> > This needs an IsOnInnerLayer function which does not appear to be
> > in
> > the existing source. Also, using LAYER_TRACKS gives gray pads. What
> > would be the best way to handle this?
> > 
> > DRC and generated gerbers appear to be correct.
> > 
> > I brought this up in the past on the kicad.info forum:
> > https://forum.kicad.info/t/component-with-pads-on-an-inner-layer-fo
> > r-st
> > ripline-microwave-filters/9375/5
> > 
> > Thanks,
> > Darrell Harmon
> > 
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> 
>