Re: gEDA-user: plated mounting holes

[Steven Michalske <smichalske@xxxxxxxxx>]

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



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