kicad-lib-committers team mailing list archive

[Carl Poirier <carl.poirier.2@xxxxxxxxx>]

Hi Michal,

Thanks for your comments. My apologies for not seeing your email at first.

3 to 8 can be summarized with "using defaults values for footprint
properties". My goal is to keep the KLC as simple as possible so any
contributor can quickly understand it. 11 is redundant with 6.5 and 12 is
debatable. In *PCB Design Optimization Starts in the CAD Library*, they
mention the nominal height is 1.2mm. I'd go with that.

Carl

On Mon, Jan 12, 2015 at 5:05 PM, nnn <nnn4000@xxxxx> wrote:

> I forgot:
> 11. Line width is 0.15 mm also for value and reference (because it's on
> silkscreen).
> 12. Text size 1 mm (or more? smaller looks bad).
>
> Maybe not all these rules should be in KLC, but I think that some of them
> are important (eg setting proper attributes).
>
> Michał Stec
>
>
> W dniu 04.01.2015 o 20:22, nnn pisze:
>
>  Library convention doesn't inform how Footprint Properties should be
>> filled. I think it would be good to add some rules to avoid mess.
>> My proposition is:
>> 1. Doc
>>     Some information that will allow to identify footprint should be
>> provided, eg manufacturer, manufacturers name, datasheet file name. Link to
>> datasheet is not enough because it can be broken in future.
>> 2. Keywords
>>     Don't use misleading Keywords. Keywords separated with space
>> character.
>> 3. Reference
>>     Reference should be default (the same as footprint name).
>> 4. Value
>>     Default: VAL**
>> 5. Attributes
>>     Follow recommendations from user manual.
>> 6. Move and Place
>>     Default: Free.
>> 7. Auto Place
>>     0 and 0 (recommendation from user manual).
>> 8. Local Clearance Values
>>     Default: 0 (if there is no reason to change it).
>> 9. 3D Shape Names
>>     Relative path with KISYS3DMOD set to ... /kicad-library/modules/packages3d,
>> path is: LIBRARY_NAME/FOOTPRINT_NAME.wrl
>>
>> What do you think about it?
>>
>> Michał Stec
>>
>
>
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