kicad-lib-committers team mailing list archive
-
kicad-lib-committers team
-
Mailing list archive
-
Message #00294
Re: KLC - courtyard
It will however be up to the user to adjust the clearance according to the
inserter used, if that's the case.
On Thu, Jan 15, 2015 at 2:36 AM, Lorenzo Marcantonio <
l.marcantonio@xxxxxxxxxxxx> wrote:
> On Wed, Jan 14, 2015 at 09:04:59PM -0500, Carl Poirier wrote:
> > It's pretty simple. They are proposing a nominal courtyard excess of
> 0.25mm
> > for all THT components. All in all, I would amend rule 6.6 to the
> > following, breaking it down into two rules:
> >
> > - Courtyard line has a width 0.05mm. This line is placed so that its
> > clearance is measured from its center to the edges of pads and body.
> > - Courtyard clearance is 0.25mm, except for components smaller than 0603
> at
> > 0.15mm, aluminum capacitors and connectors at 0.5mm and BGA at 1.0mm, all
> > rounded on a grid of 0.05mm. (IPC-7251, IPC-7351)
> >
> > The connector clearance comes from *PCB Design Optimization starts in the
> > CAD library*. Any comments before I edit the KLC?
>
> THT courtyard is not critical, usually. In my experience it's more an
> issue of 'leave enough space for the heat to get out' or 'keep the
> clearance for high voltage'. If you look at the example for axial part
> it also follows the wire/barrel contour which is IMHO bad practice (I
> see 'nesting' components as a last resort to recover board estate...)
>
>
> --
> Lorenzo Marcantonio
> Logos Srl
>
> --
> Mailing list: https://launchpad.net/~kicad-lib-committers
> Post to : kicad-lib-committers@xxxxxxxxxxxxxxxxxxx
> Unsubscribe : https://launchpad.net/~kicad-lib-committers
> More help : https://help.launchpad.net/ListHelp
>
References
-
KLC - courtyard
From: nnn, 2015-01-09
-
Re: KLC - courtyard
From: John Beard, 2015-01-09
-
Re: KLC - courtyard
From: nnn, 2015-01-10
-
Re: KLC - courtyard
From: Carl Poirier, 2015-01-10
-
Re: KLC - courtyard
From: Jean-Paul Louis, 2015-01-11
-
Re: KLC - courtyard
From: Carl Poirier, 2015-01-11
-
Re: KLC - courtyard
From: Jean-Paul Louis, 2015-01-13
-
Re: KLC - courtyard
From: Lorenzo Marcantonio, 2015-01-13
-
Re: KLC - courtyard
From: Carl Poirier, 2015-01-15
-
Re: KLC - courtyard
From: Carl Poirier, 2015-01-15
-
Re: KLC - courtyard
From: Lorenzo Marcantonio, 2015-01-15