> -----Original Message-----
> From: piclist-bounces@mit.edu 
> [mailto:piclist-bounces@mit.edu] On Behalf Of Bob Blick
> Sent: Tuesday, November 22, 2005 9:40 AM
> To: Microcontroller discussion list - Public.
> Subject: Re: [EE] Notched PCBs
> 
> 
> Bob writes:
> >> You need to make your pad U-shaped and leave clearance for the
> >> cutout.
> 
> Olin writes:
> > Not in Eagle.  I've done this by making a normal pad, then 
> adjusting the
> > dimension outline to cut part of it away.  The first time I 
> did this I was
> > wondering whether the board house would complain, but the 
> boards came back
> > exactly as expected with no comment.
> 
> You totally missed the point. David does not want to cut copper. So he
> needs unusually shaped pads, which are certainly OK and 
> supported by many
> CAD packages, perhaps even low-end ones like Eagle, without having to
> resort to creating fake pads with multiple copper objects.
> 

While he can make U-shaped pads, I don't think he is going to get a
U-shaped plated hole without running the routed edge thru it.  While I
think I can imagine a combination of drilling & routing that might
accomplish something like that, I'm pretty sure it would be cheaper to
just deburr the hole after routing.  OTOH, the cuts I've seen like this
have been very clean, so I don't know that there would really be a
problem.

Gary Crowell, CID+
Micron Technology


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