Re: gEDA-user: Assign polygon/rectangle to a net in PCB

[Steven Michalske <smichalske@xxxxxxxxx>]

i draw a slightly larger rectangle and turn off its clearances with s.

Note that this rectangle will not clear for anything!!!

Steve

On Jun 16, 2008, at 5:03 PM, James Johnston wrote:

> The particularly problematic issue I was having is a TSSOP footprint  
> that
> has a thermal pad to be hooked to GND node.  Obviously I want to use a
> rectangle for more heat dissipation, but pcb was creating clearance  
> around
> it.
>
> Using the technique in the message, I created a line starting from the
> center of the thermal pad, and then continued to draw a rectangle  
> using
> lines to cover up the clearances created by the thermal pad in the
> footprint.  It works but it seems awfully cludgy... is this the best  
> way to
> handle that scenario?
>
> --James
>
> -----Original Message-----
> From: geda-user-bounces@xxxxxxxxxxxxxx
> [mailto:geda-user-bounces@xxxxxxxxxxxxxx] On Behalf Of DJ Delorie
> Sent: Monday, June 16, 2008 22:56
> To: geda-user@xxxxxxxxxxxxxx
> Subject: Re: gEDA-user: Assign polygon/rectangle to a net in PCB
>
>
> http://www.delorie.com/pcb/docs/gs/gs.html#SMT-Blinker
> (unfinished)
>
> Planes are not "assigned" to nets, they're connected to them.  Connect
> one pad (using the thermal tool or traces (make sure "settings->new
> lines clear polygons" is NOT selected)) and press "o" to optimize
> rats.  Then PCB knows which pins go to the plane instead of to other
> pins.  You still have to connect them all manually, but at least it
> indicates them correctly.
>
>
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