Re: gEDA-user: Can someone explain this footprint?

[DJ Delorie <dj@xxxxxxxxxxx>]

> Pin[0 0 13000 2000 13600 11811 "" "1" "edge2"]
> Pad[-11811 0 -9842 0 4000 5600 9600 "2" "2" "square"]
> Pad[9843 0 11811 0 4000 2000 6000 "1" "1" "square,edge2"]

> From this aren't the pads inside, or on, the hole created by the pin?

Nope.  There's about 13 mil clearance.  Try bringing it up in PCB and
see for yourself.

> Wouldn't the annular short the pads?  How I read this is, you have a 6
> mil thick annular with an inside diameter of 130 mils.

130 mil *copper* (outside) diameter, 118.11 mil drill.  It's 156 mils
between the two pads, so (156-130)/2 = 13 mil gap.

> Also, the way I understand the mask isn't the mask inside the annular?

136 mil mask, 130 mil copper.  That leaves 3 mil between the two.


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