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Date:	Tue, 8 Oct 2013 07:52:39 -0500
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Subject:	Re: [geda-user] polygons, arcs and footprints
From:	Russell Dill <Russ DOT Dill AT asu DOT edu>
To:	geda-user AT delorie DOT com
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On Fri, Oct 4, 2013 at 4:56 PM, Evan Foss <evanfoss AT gmail DOT com> wrote:
> Hi folks,
>
> I am trying to make a footprint for an LTC3441. The bottom pad is a
> polygon. I know they are not possible in PCB footprints but does
> anyone have a good way to emulation one?
>
> Also I am trying to use a MEMS microphone that uses a ring to seal it
> to the PCB. Again I know that does not exist but is there a way around
> it?
>
> -Evan

Using my pscad tool:

module mlp

name            DE12
pad_w           0.25
pad_l           0.70
pitch           0.50
n               12
height          2.90
thermal_x       3.30
thermal_y       1.70
indent          0.35
body_x          4.00
body_y          3.00
paste_fraction  0.60
paste_max       1.5


As far as a ring, I'd just make 20 or so pads in a circle depending on
how circular you want it.

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