[PCB_FORUM] Re: Replacing ripped up etch?

Hello,

Did you try running Derive Connectivity? (Tools > Derive Connectivity)

In order for Allegro to see a routed connection it must be snapped to
the center of the pin or via and sometimes during conversions things
round the wrong way which makes the trace not exactly in the center of
the pin or via. "Derive Connectivity" will attempt to resolve these
conditions and maybe it will help with yours.  I would give it a try.

When you run "Derive Connectivity" check the box next to "Convert Lines
to Connect Lines" the click OK.  (Save a backup of the database of
course before running anything like this)

Hope this helps,
Michael Catrambone
UTStarcom, Inc.


-----Original Message-----
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Dharma
Kemp-Bresett
Sent: Thursday, October 30, 2008 11:31 AM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Replacing ripped up etch?

Hi Everyone,
Hopefully this one is as easy to solve as the last question I posted.
:-) 

We have a board file that was converted from pads but has an orcad sch.
We
are now synching the converted brd file with the sch. We had to remove a
bunch of pins from some bgas that were okay in pads but we didn't want
in
allegro. I have loaded the netlist and replaced the few symbols that
wouldn't place, or refresh, automatically (due to the "missing pins")
but
now I have a bunch of routes that have become rats. These appear to be
ones
that went from the offending symbols to other offending symbols so its
not
all rats for these refdes but only a few per refdes with multiple refdes
involved. I have tried everything I can think of in every combination I
can
think of to no avail. So the million dollar question is: Is there a way
to
get those routes back without having to go through by hand and make a
clip
file? Something similar to a placement file but for routes, maybe?
Thanks in advance,
Dharma

KAW/USA Ltd. 
39 Simon Street, #4 
Nashua, NH 03060 
603-886-8711 x212 
603-881-8763 fax 

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