kicad-lib-committers team mailing list archive

[Carl Poirier <carl.poirier.2@xxxxxxxxx>]

Are any of you aware if packages with a non-isolated mounting tab connected
to any other pad than the middle one exist?

If they don't, then I would opt for one footprint with the tab connected
and one footprint with the tab unconnected.

On Wed, Dec 31, 2014 at 9:20 AM, Carl Poirier <carl.poirier.2@xxxxxxxxx>
wrote:

> The question of pin names had been solved a while ago already. It was
> agreed that the symbols would take care of pin swaps.
>
> As for the tab, I wished to avoid the board-level edit of the footprint,
> but it's a good compromise to avoid many library variants.
>
> Michal Salaban (See other email) suggests another solution, which consists
> of attributing pin number 4 to the tab in the schematic symbol, and pad
> number four to the tab in the footprint. Here, the user alse has to
> manually assign a net to the pad, but in the schematic. Any comments on
> that one?
>
> On Wed, Dec 31, 2014 at 5:54 AM, Vesa Solonen <vesa.solonen@xxxxxxxx>
> wrote:
>
>> 31/12/14, 04:01, Carl Poirier kirjoitti:
>> > Vesa,
>> >
>> > If I understand correctly, you say the oyvind-aabling library is a good
>> > example of having multiple variants of the same housing, which you don't
>> > like. Right?
>>
>> Hi Carl,
>>
>> Quite the opposite, if I understand correctly ;)
>> With multiple variants depending on a device I meant e.g. TO-220_GDS and
>> TO-220_BCE, which I don't like. I see why pin names are nice on the PCB,
>> but they don't belong to the standardised housing library. They should
>> be pulled from the schematic symbol the standard housing is linked to.
>> This should be quite easy to add in to the pcbnew pin rendering,
>> possibly with an option to turn it on part by part basis.
>>
>> In the oyvind-aabling's library variants are only mechanical variants,
>> vertical, horizontal with tab to PCB and horizontal with tab away from
>> PCB. Everything parametrically generated including 3-D and
>> not_too_long_names.
>>
>> -Vesa
>>
>>
>