On Oct 25, 2009, at 11:10 AM, Stefan Salewski wrote: > On Fri, 2009-10-23 at 15:24 -0400, DJ Delorie wrote: >> >> You can do the same thing with an element, and probably should, as >> mounting holes should be treated as elements. It would have one >> Pin() >> (for the hole and inner copper) and two Pad()s (for the outer >> coppers). >> Plus whatever silk you want to identify it. >> > > Thanks for the explanation. > > I have added this type of mounting hole to my sfg footprint generator. > (It uses a fixed minimal annular ring of 10mil for the pin, and pads > on > component and solder side. We may consider making the annular ring > adjustable, do we need that?) > Thats a slick generator.
The inner layer rings will need to have a minimum diameter, and they provide the plating a place to stick and grow. Different board houses will have different minimum pin/via annuluses. Hardkrash _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user