[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

Re: gEDA-user: modify footprint and update layout



The pattern I picked had the wrong dimensions.

The pattern I picked had the pin numbers wrong.





On Tue, 2008-12-16 at 19:42 -0800, Steve Meier wrote:
> A good survey question:
> 
> What are the most common reasons that you need to change land patterns?
> 
> Steve Meier
> 
> 
> On Tue, 2008-12-16 at 22:38 -0500, DJ Delorie wrote:
> > > I could go a step further or two. Same number of pins? same number
> > > of pads. same pin and pad pin numbers?
> > 
> > Each thing that must match is one more thing that you can't change and
> > still update the footprint.
> > 
> > > A key point is that you have to have the old land pattern.
> > 
> > I wouldn't rely on that.
> > 
> > > I think we should presume that the two patterns have the same pin
> > > numbering scheme.
> > 
> > I often fiddle with the thermal pads on footprints, replacing one big
> > pad with many smaller ones.
> > 
> > Getting these rules right is most of the work in this type of project.
> > 
> > 
> > _______________________________________________
> > geda-user mailing list
> > geda-user@xxxxxxxxxxxxxx
> > http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
> 
> 
> 
> _______________________________________________
> geda-user mailing list
> geda-user@xxxxxxxxxxxxxx
> http://www.seul.org/cgi-bin/mailman/listinfo/geda-user



_______________________________________________
geda-user mailing list
geda-user@xxxxxxxxxxxxxx
http://www.seul.org/cgi-bin/mailman/listinfo/geda-user