Re: gEDA-user: Fiducial

[Phil Taylor <phil@xxxxxxxxxxxxxxxxxxxxxxxx>]

> standard libraries?  Has anyone posted fiducials that I could use as a 
> starting reference?
>
> Thanks a lot for your assistance guys.
> Jeff

Jeff,

Here are three fiducial footprints.  First is a top-layer pad only.

Second is a 50 mil pad with a 100 mil clearance circle and a 100 mil 
soldermask opening.

Third is the same as second but with a 175mil clearance circle.  This is 
the one I see the most on other peoples' pcbs.

The 2nd and 3rd version appear on all layers.  Please let me know if 
they work out for you.

phil




_____
Element[0x0 "FIDUCIAL__pad-50-100-100.fp" "" "" 0 0 0 0 0 100 0x0]
(
	Pad[0 0 0 0 5000 5000 10000 "" "1" 0x000]
)

_____
Element[0x0 "FIDUCIAL__pin-50-100-100.fp" "" "" 0 0 0 0 0 100 0x0]
(
	Pin[0 0 5000 5000 10000 0 "" "1" 0x001]
)

_____
Element[0x0 "FIDUCIAL__pin-50-175-100.fp" "" "" 0 0 0 0 0 100 0x0]
(
	Pin[0 0 5000 12500 10000 0 "" "1" 0x001]
)

Element[0x0 "FIDUCIAL__pad-50-100-100.fp" "" "" 0 0 0 0 0 100 0x0]
(
	Pad[0 0 0 0 5000 5000 10000 "" "1" 0x000]
)

Element[0x0 "FIDUCIAL__pin-50-100-100.fp" "" "" 0 0 0 0 0 100 0x0]
(
	Pin[0 0 5000 5000 10000 0 "" "1" 0x001]
)

Element[0x0 "FIDUCIAL__pin-50-175-100.fp" "" "" 0 0 0 0 0 100 0x0]
(
	Pin[0 0 5000 12500 10000 0 "" "1" 0x001]
)


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