kicad-developers team mailing list archive

[hauptmech <hauptmech@xxxxxxxxx>]

You should be able to check the footprint just by looking at it in a 
text editor or online. That will be faster than compiling Kicad.

https://github.com/KiCad/Resistors_SMD.pretty/blob/master/R_2512_HandSoldering.kicad_mod
https://github.com/KiCad/kicad-footprints/blob/master/Resistor_SMD.pretty/R_2512_6332Metric_Pad1.34x3.40mm_HandSolder.kicad_mod


On 4/04/18 09:56, Augusto Fraga Giachero wrote:
> 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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