kicad-developers team mailing list archive

[Augusto Fraga Giachero <augustofg96@xxxxxxxxx>]

Sorry for the noise, I'll try to compile the Kicad 5 rc2 and check if
this issue persists in the new library.

Thanks,
Augusto Fraga Giachero.

Nick Østergaard writes:

> The kicad-developers list is not really for detailed library discussions
> like this. You may have better luck reporting the issue directly on
> https://github.com/kicad/kicad-footprints/issues
>
> I am not sure what the plan is, but I don't think the Librarians will
> update the old footprints, all activity are done in the new repos.
>
> http://kicad-pcb.org/post/kicad-official-libraries/
>
> 2018-04-03 23:33 GMT+02:00 Augusto Fraga Giachero <augustofg96@xxxxxxxxx>:
>
>>
>> Hi!
>>
>> I've had a an unpleasant surprise with a 2512 (imperial) smd resistor
>> footprint (Resistors_SMD:R_2512_HandSoldering) available in the Kicad's
>> official library (shame on me for not checking the dimensions before
>> sending the gerbers). When our boards arrived we verified that the pads
>> of this footprint are too further apart, up to the point that the
>> resistor barely touches the pads.
>>
>> I've looked on some datasheets and other sources and confirmed that this
>> footprint is out of the recommended dimensions
>> (http://www.resistorguide.com/resistor-sizes-and-packages/).
>>
>> I've attached an image showing the dimensions from the website
>> above. The recommended dimensions for 2512 are a = 3.5mm, b = 1.6mm and
>> c = 3.8mm, while in the footprint available on Kicad a = 3.2mm, b =
>> 2.7mm (no problems with this been wider as it is a hand soldering
>> variant) and c = 5.2mm.
>>
>> Dim(mm) Average     Kicad
>> a       3.5         3.2
>> b       1.6         2.7 (ok, hand soldering)
>> c       3.8         5.2 (too further apart)
>>
>> I don't known if it is fixed in the new Kicad 5 libraries, but it would
>> be nice to be fixed in the legacy libraries as well. I can make the fix
>> if nobody have already made.
>>
>> Thanks,
>> Augusto Fraga Giachero.
>>
>>
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>>