Hello,
Thank you Bernd for your comments. Your English is much better
as my, I have difficulties to explain exactly what I would! Also for
industrial application I very often used and use again this possibility. I
think once you have used it, you always will use it, because there Is no
really cost, only advantages.
I have tried again the solution by adding a pin without pin
number on the board (or in the component library). The problem I have is
that the added pin must be far enough from the component pad, else a pad
near pad message is generated. And yet, most of the time, the added pin has
to be very close to one component pad (typically 1,27mm).
Regards,
Jean-Paul, also F5BU (author of Galva program available on
radioamateur.org)
****************
Jean-Paul Gendner
03.88.27.03.44
_____
De : kicad-users@yahoogroups.com [mailto:kicad-us...@yahoogroups.com] De la
part de Bernd Wiebus
Envoyé : lundi 25 janvier 2010 10:55
À : kicad-users@yahoogroups.com; kicad-users@yahoogroups.com
Objet : Re: [kicad-users] Problem description
Hello Andy, hello Group.
> The reason that components are one fixed size is because components are
> only one fixed size. If the component were a different size it is a
> different component.
In a cannonical way of thinking, this is fairly true, but.....
> Which is a convoluted way of saying that most users
> are building circuits with a defined set of components, so the issue does
> not arise.
People working with components from the scrap are fairly used to mount the
components they have, and not they want. :-)
To hell what shape a Capacitor has. He has to match capacitance, voltage,
ESR......so its nice to have layouts which would accept more than one shape
of component.
But there are actually some components having more than one pad per
connection. Some odd shaped automotive relays, some power components.....
> What would be a nice feature would be to have the ability to create
> sub-circuits complete with tracks so that you could build up a library of
> common circuit elements and just place them like footprints.
Of course. This would eliminate some other similar Problems ocouring with
components which have more than one pad per connection. Worst i actual have
is a screw terminal with ten pads in two rows, all the same
connection.......:-)
An other point would be a TO-92 footprint wich allows stright and molded
Types. I saw it so often, but seldom you get a layout program, which allows
this......
I am thinking, more than one pad per connection would create an logical
problem for DRC. Perhaps there would be a way to let the DRC recognizing a
(well declarated) group of pads as one pad?
> With the one pin idea, try creating a 1 pin with no numbers or names
> assigned to it, that should prevent drc flagging them up. Or just set
> down a large via instead.
I thougt about creating a capacitor with some more connections, and hide the
pins and mark them unused. But i think, your way is far better....
With best regards: Bernd Wiebus alias dl1eic
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