Re: gEDA-user: PCB lib.

[Steve Meier <smeier@alchemyresearch.com>]

Chad Robinson wrote:

> Xtian Xultz wrote:
>
> > yes, you are. What I think is, if the footprints you designed have a 
> > standard definition, the name of the footprint must agree with the 
> > standard. Then, you can contribute with these design to the project. 
> > The problem is to contribute with a footprint named 
> > "little_connector_with_32_pins_with_shine_bubbles", this will make 
> > the design a nightmare...
> > IF the footprint doenst have any standard, then it can have any name...
>
> I completely agree, and unfortunately many of the footprints in the 
> library are just like this. There's also a lot of crossover - there 
> are like 6-7 different 0805 resistor footprints. It would be nice to 
> consolidate these.
>
> Somebody needs to "own" the libraries and force quality control. In my 
> experience that's the only way to make this happen. Is there a 
> maintainer just for the libs?
Be carefull some pattern variation can be do to the assembly process. 
Different patterns may be needed.

Bellow is a note from the standard document.

*Note: If a more robust pattern is desired for wave soldering devices 
larger than 1608 [0603], add 0.2 mm to the
Y-dimension, and consider reducing the X-dimension by 30%. Add a ``W'' 
suffix to the number; e.g., 103W.


Steve Meier