[PCB_FORUM] Re: Change trace net... How? easy way?

  • From: Michael.Catrambone@xxxxxxxxxx
  • To: icu-pcb-forum@xxxxxxxxxxxxx
  • Date: Thu, 23 Mar 2006 20:54:52 -0600

Gene,

There is many ways to handle this problem but here is some
for future reference.

1. You can move all the shapes outside of the PCB then window
select the Clines while in Move, click origin and drop it down in
the same spot (ix 0 0).  The vias should adapt to the traces that
it connects to because the shapes are now outside the PCB.

2. You can change the net name of the GND planes to the critical
net that got trashed which would change the vias net back to the
correct net.. After that happens change the planes back to GND.
Of course this can get very tricky if you have multiple GND planes
but it is certainly possible on some designs.

The is more than two ways to handle this but these are the two
that I have had the most success with a minimum amount of effort.

Hope this helps,
Mike





"Gene Carman" <gcarman@xxxxxxxxxxxxxxx>@freelists.org on 03/23/2006
08:25:52 PM

Please respond to icu-pcb-forum@xxxxxxxxxxxxx

Sent by:    icu-pcb-forum-bounce@xxxxxxxxxxxxx


To:    <icu-pcb-forum@xxxxxxxxxxxxx>
cc:
Subject:    [PCB_FORUM] Re: Change trace net... How?  easy way?


Ended up doing something like that...  and rerouting part of it.  But the
bottom line is that I an select a whole cline but there is no way to change
the net on it like one can with shapes.  Seems like a missing feature to
me.

Got Skill?

-----Original Message-----
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx]On Behalf Of Mitch S. Morey
Sent: Thursday, March 23, 2006 5:41 PM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: Change trace net... How? easy way?


Kinda easy.

"Cut" the Cline segments that attach to the pins, near the pins wherever
it makes a connection (might simply be at the plane connection). Then it
will essentially be a dangling Cline segment. Connect it all back up to
the original connections, and whalla. The netlist in the board shouldn't
have changed, so your critical net should connect up fine.

I've learned to 'write protect' my .brd files..... :)

Good day.

Mitch

>
> On Tue, 21 Mar 2006 15:09:59 -0800, "Gene Carman"
> <gcarman@xxxxxxxxxxxxxxx> wrote:
>
>>Have a design that is fully routed, but the engineer needs a change.  He
>> attempted to do it himself, and now has managed to connect a critical
net
>> to ground.  That net winds all over the board, (control net) and we want
>> to retain the current routing...  but since it is now part of the fill,
>> it is stuck as GND.
>>





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