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 < [email protected]> 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 : [email protected] > Unsubscribe : https://launchpad.net/~kicad-lib-committers > More help : https://help.launchpad.net/ListHelp >
-- Mailing list: https://launchpad.net/~kicad-lib-committers Post to : [email protected] Unsubscribe : https://launchpad.net/~kicad-lib-committers More help : https://help.launchpad.net/ListHelp
