I managed to eliminate all but three pours. Fortunately, I have
duplicate channels so copy & paste made the process managable.
As it turns out, the problem surfaces when I import AutoCAD
drawings. I imported two .DWGs. First one, no (apparent) problem
... second one, Protel loses track of both polygon locations and
dimension locations. When I try a repour Protel shorts out to traces
that should be avoided. At any rate, I delete polygons, exit Protel,
repair database, move dimensions to correct location, repour
polygons and I'm back in the game.
Thanks for the help, Brad.
Regards,
Steve
At 09:56 AM 8/9/2005, you wrote:
OOOUUUCHHH! That hurts, 100+pours?
I wouldn't even want to imagine trying to manage the pours
on that board. I have to assume you are doing some form of power
circuitry from your comments. Not my forte but I have done some.
Yes I would be looking to get those pours down in number,
they just become more of a management issue than most people can
handle (not to mention can Protel handle them?). I would limit
myself depending on how they were defined. I know it is time
consuming to pour detailed pour outlines verses just a general
block/rectangle but I would think that detailed pour outlines is
the only way for you to go. Then even if you have 50 pours or more,
at least they are not a management problem because you know
precisely where their outlines are supposed to be because you
located those outlines precisely. That is the manner in which I did
power designs previously, you have to know where those pours are
located and that they are not order dependant through 30 or 40
layers of repour ordering just to repour one polygon.
I would also look at why you can't just use wide/fat traces
for a lot of your signals as well. Then where they connect and you
rely on multiple spokes of a pour for the connection, do the same
with smaller traces. Just make sure you have the Option for Remove
loops turned off or it will remove your multiple traces as you edit.
If you draw detailed polygon outlines try to work out a
grid system that allows you to draw them quickly considering
spacing and your outline requirements.
Sincerely,
Brad Velander
Senior PCB Designer
Northern Airborne Technology
1925 Kirschner Rd.,
Kelowna, BC, V1Y 4N7.
tel (250) 763-2329 ext. 225
fax (250) 762-3374
-----Original Message-----
From: Steve Allen [mailto:[EMAIL PROTECTED]
Sent: August 9, 2005 9:25 AM
To: Protel EDA Discussion List
Subject: RE: [PEDA] 99SE Polygon Pours
Brad,
Looks like you've got me on the right path. This is a two layer
board with 100+ pours as I need to maximize copper area for grounds,
power, and higher current traces. It would be very tedious to route
all these pours by hand.
Any suggestions? I'm thinking about limiting pours as much as
possible. Maybe get down to 5-10. Do you think I'll have better luck?
Thanks again,
Steve
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