Gary,
Very interesting, I had a similar situation, (before I found this forum)
where the autorouter
would just not run, still don't know why, it was very early in the design
stage and I was just testing
out the system so not being able to resolve it I started from scratch (it
was a simple board). But now this has me wondering whether this might be
what happened, drawing something on multilayer without realizing it???????
There is one thing with this system I have seen, after now completing 4
boards with this software,
that it is very easy to make a mistake while designing, only to have a tough
time after the fact to fix or
to find the problem either by DRC or something just won't work.
Bob

Robert M. Wolfe, C.I.D.
47 Chatfield Drive
Trumbull, CT 06611
203-261-2182
[EMAIL PROTECTED]
----- Original Message -----
From: "G. Allbee" <[EMAIL PROTECTED]>
To: "Protel EDA Forum" <[EMAIL PROTECTED]>
Sent: Tuesday, September 11, 2001 10:47 PM
Subject: Re: [PEDA] Autorouting Problems


> FYI
> I worked on it all day and finally found the problem.(1 day late on
> delivery)
>
> In this revision of the board I added a slot in the middle of the board.
I
> remembered an email from this group some time ago that said something like
> put a through hole on each end of the slot and then draw lines on the
> perimeter of the slot.  So this is what I did, however I used lines on
> multilayer figuring they would also work as keepouts and prevent routing
in
> the slot.
>
> I discovered that the multilayer lines were preventing the autorouter from
> routing and when changed to a mechanical layer the router would work like
> normal..  Hmmm - a bug?
>
> Regards,
> Gary Allbee
> Alta Industrial Automation Ltd
> www.aialtd.com
>
> ----- Original Message -----
> From: G. Allbee <[EMAIL PROTECTED]>
> To: Protel EDA Forum <[EMAIL PROTECTED]>
> Sent: Tuesday, September 11, 2001 8:24 AM
> Subject: [PEDA] Autorouting Problems - need help.
>
>
> > I have copied a data base from a previous design, revised the schematic
> and
> > layout but now I went to autoroute and it will not route.  It runs a few
> of
> > the first tests and normally comes up with a window to optimize the
> routing
> > grid but I dont even get that - it just doesnt route - it looks like it
> > optimizes the net connections and thats it.
> >
> > I am running 99SE on a 1.3G AMD with 256M RAM and I have verified other
> > databases do autoroute. Seems to be just a problem with this database
and
> I
> > havent changed anything from the previous revision - and yes my top and
> > bottom layers are turned on.  I have done about 20 board designs now and
> > this is the first time I have seen this.
> >
> > Any tips would be apreciated.
> >
> > Regards,
> > Gary Allbee
> > Alta Industrial Automation Ltd
> > www.aialtd.com
> >
> >
>

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