Gary,
        I don't use the autorouter at all but I have to ask about your
multilayer lines. Were any segments of these lines actually arcs? Like at
the ends of your slot? The Protel autorouter does not like arcs, I don't
know the exact connotation of that statement but on numerous occasions the
comment has been raised by those that do use the autorouter. Commonly it is
in regards to the board outline (possibly that's on the keepout layer).

Brad Velander,
Lead PCB Designer,
Norsat International Inc.,
#300 - 4401 Still Creek Dr.,
Burnaby, B.C., V5C 6G9.
Tel. (604) 292-9089 direct
Fax (604) 292-9010
website www.norsat.com


> -----Original Message-----
> From: G. Allbee [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, September 11, 2001 7:47 PM
> To: Protel EDA Forum
> 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

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