Re: gEDA-user: Interest in PCB footprint generation scripts?

[John Luciani <jluciani@xxxxxxxxx>]

I have found it easier to generate these footprints in groups. I
assign key-value pairs to
all symbols in the group using the KEY=VALUE syntax that you use. I
then create records
with symbol specifix parameters using a vertical-bar separated list. I
get the parameters for the individual symbols by column copying out of
the PDF datasheets.

I have some perl script examples at
http://www.luciani.org/geda/pcb/pcb-perl-library.html
For the example scripts contain the symbol data in the __DATA__
section. Normally
I would place the data in a separate file.

(* jcl *)


On 5/11/05, Darrell Harmon <mail@xxxxxxxxxxxx> wrote:
> I am currently writing a set of python scripts to generate PCB
> footprints.  The idea behind what I am doing is to make it easy to
> create footprints for a project from the components datasheets quickly.
> I have it working for BGA parts so far, and will be adding QFP, SO, SOT,
> DIP, ...  Is there any interest in this?  If so, I will clean it up,
> write documentation and put it on my website.  Suggestions are welcome.
> The set of scripts will be licensed under the GPL, but there will be an
> exception so that the output will be public domain.
> 
> Input to generate Xilinx FT256 BGA:
> 
> type = "bga"
> pitch = 1mm
> silkwidth = 10 mils
> balldia = 0.4mm
> maskclear = 0.1mm
> polyclear = 6 mil
> silkboxwidth = 17mm
> silkboxheight = 17mm
> rows = 16
> cols = 16
> part = "FT256"
> 
> I have attempted to design so that the input data is simple to
> understand and modify.  Notice how the mixed units are allowed.  The
> script converts automatically from inches, mils or mm.
> 
> --
> Darrell Harmon
> 100x100mm SBC running GNU/Linux:
> http://dlharmon.com/sbc.html
> 
>