Re: gEDA-user: ALPS 6mm tactile footprint

[David Griffith <dgriffi@xxxxxxxxxxxxx>]

On Thu, 23 Mar 2006, Steve Meier wrote:

> Your pins have no clearances from copper polygons
>
> pin[x y padwidth clearence soldermask drill_width .......]
>
> Having no clearance all four pins will short if they are placed in a
> board with power and ground planes.
>
> Has anyone got a list of "standard drill sizes"

Ah.  Fixed that clearance problem by putting 3000 as the third parameter
of the Pin[] things (and read the docs a bit closer).  About "standard
drill sizes".  I arrived at the drill size by eyeballing the
SW__Panasonic_EVQPA_Series posted two days ago.  It looks like that one
used a drill size of 4600, but I ended up using 5000.

I noticed those Panasonic footprints have 0x0 as the first and last
parameter of Element[] and 0x01 as the last parameter of Pin[].  What are
the purpose of those parameters?

> David Griffith wrote:
> >I just now made this footprint for an ALPS 6mm through-hole tactile switch
> >(Mouser #688-SKHHBV).  Would someone please take a look at it and
> >critique?
> >
> >Element["" "" "alps_6mm_tactile_th" "" 100000 90000 22500 10000 0 100 ""]
> >(
> >        Pin[0 0 8000 0 8600 5000 "1" "1" ""]
> >        Pin[20000 0 8000 0 8600 5000 "2" "2" ""]
> >        Pin[0 30000 8000 0 8600 5000 "3" "3" ""]
> >        Pin[20000 30000 8000 0 8600 5000 "4" "4" ""]
> >        ElementLine [5000 0 15000 0 1000]
> >        ElementLine [5000 30000 15000 30000 1000]
> >        ElementLine [0 25000 20000 25000 1000]
> >        ElementLine [20000 25000 20000 5000 1000]
> >        ElementLine [20000 5000 0 5000 1000]
> >        ElementLine [0 5000 0 25000 1000]
> >        ElementArc [10000 15000 5000 5000 270 90 2000]
> >        ElementArc [10000 15000 5000 5000 180 90 2000]
> >        ElementArc [10000 15000 5000 5000 0 90 2000]
> >        ElementArc [10000 15000 5000 5000 90 90 2000]
> >
> >        )
> >
> >
> >
>
>

-- 
David Griffith
dgriffi@xxxxxxxxxxxxx

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