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Date:	Fri, 10 Aug 2012 17:26:01 +1000
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Subject:	Re: [geda-user] delay lines in pcb
From:	Stephen Ecob <stephen DOT ecob AT sioi DOT com DOT au>
To:	geda-user AT delorie DOT com
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On Fri, Aug 10, 2012 at 3:13 PM, Traylor Roger
<traylor AT eecs DOT oregonstate DOT edu> wrote:
> Gang,
>   I need to make a number of delay lines in pcb.  I would do them
>   as I would footprints but some of them are on inner layers, and
>   others transition between layers.
>
>   Making them directly by drawing in pcb is very tedious as they are
>   pretty long lines.
>
>   Could I create a .pcb file and write the Lines into it and connect
>   the lines to form the traces?  Like....
>
>   Layer(2 "solder")
>   (
>       Line[81890 67640 93050 67640 1000 2000 "clearline"]
>       Line[74200 37900 80000 37900 1000 2000 "clearline"]
>   )
>
>   Any suggestions about how to do this in an easier way?  I need to
>   have direct control of the trace length obviously.

Yes, writing a program in your favourite language to output lines like
that shouldn't take too long.

It may be quicker to use a text editor to simply copy and paste and
then change some position values - I
use Gedit with the "Multi-edit" plugin which allows you to select
multiple lines and insert columns of
increasing or decreasing numbers, using just a few key strokes.

Copy and paste in PCB using the placement grid is also pretty quick -
select an 'S' shaped set of tracks,
copy, and then move your mouse and left click multiple times to place
copies.  Use the action :Report(NetLength)
to check the length when you're done.

Stephen Ecob
Silicon On Inspiration
Sydney Australia
www.sioi.com.au
Spartan 6 LX25 with 2GB DDR3 DIMM for $299:
http://www.sioi.com.au/shop/product_info.php/cPath/24/products_id/55

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