elongated rounded pads not handled correctly

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elongated rounded pads not handled correctly

Postby tsaunders » Sun Feb 27, 2011 10:42 pm

The eagle exporter script doesn't seem to be handling these ellipse pads correctly - they end up as circles in the router. So the tracks produced are invalid in eagle!
Screen shot 2011-02-27 at 22.38.16.png
Screen shot 2011-02-27 at 22.38.16.png (14.53 KiB) Viewed 2715 times

Screen shot 2011-02-27 at 22.38.26.png
Screen shot 2011-02-27 at 22.38.26.png (23.27 KiB) Viewed 2734 times
tsaunders
 
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Joined: Sun Feb 27, 2011 10:38 pm

Re: elongated rounded pads not handled correctly

Postby tsaunders » Mon Feb 28, 2011 6:05 pm

Some more info incase it is useful:

The SMT pads are 1 x 1.5mm with 100% roundness
tsaunders
 
Posts: 3
Joined: Sun Feb 27, 2011 10:38 pm

Re: elongated rounded pads not handled correctly

Postby pperisin » Tue Mar 20, 2012 6:27 pm

Hi,

Electra handles it this way:

Code: Select all
(padstack Pad42
   (shape (rect BottomLayer -6.890 -26.575 6.890 26.575))
   (shape (circle BottomLayer 13.779 0.000 -26.575))
   (shape (circle BottomLayer 13.779 0.000 26.575))
)


Long story short - you define 2 circles and one rectangle as a pad shape in DSN file, and electra will read this as elongated rounded pad.

Can you make FreeRouter read this as rounded rectangle pad too? These are pretty common pad shapes.

Regards
pperisin
 
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Joined: Tue Mar 20, 2012 6:18 pm

Re: elongated rounded pads not handled correctly

Postby Elco » Sat Apr 13, 2013 3:10 pm

This was never implemented in the Eagle brd_to_dsn.ulp
It is now correctly implemented for SMD pads in the eagle2freerouter_1304.ulp posted in this forum.
Elco
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