> Is the correct way to create such pads to make two short, fat lines of
> different lengths side by side so that their widths make them just
> touch? Is it OK for pads to overlap?
Overlapping is fine.
> Does the file format for defining footprints support comments? It seems
> this would be useful when hand crafting complex files.
Any line that starts with a '#' is a comment.
Any unquoted '#' starts a comment to the end of the line.
Those types of comments are ignored by pcb.
Additionally, you can use the Attribute() syntax to add a tagged
"comment" (really, anything) that pcb will preserve, such as copyright
information. Example:
Element["" "" "" "" 90551 110236 0 0 0 100 ""]
(
Pin[0 0 5300 2000 5900 2400 "" "1" "edge2"]
Pin[19213 0 5300 2000 5900 2400 "" "2" "edge2"]
ElementLine [-12992 -5512 -12992 5512 1000]
ElementLine [-9055 9449 27953 9449 1000]
ElementLine [31890 5512 31890 -5512 1000]
ElementLine [27953 -9449 -9055 -9449 1000]
ElementArc [-9055 -5512 3937 3937 270 90 1000]
ElementArc [-9055 5512 3937 3937 0 90 1000]
ElementArc [27953 5512 3937 3937 90 90 1000]
ElementArc [27953 -5512 3937 3937 180 90 1000]
Attribute("author" "DJ Delorie")
Attribute("copyright" "2006 DJ Delorie")
Attribute("use-license" "Unlimited")
Attribute("dist-license" "GPL")
Attribute("description" "Through-hole crystal")
)
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