kicad-developers team mailing list archive
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Re: zone fill with micro-vias
Dick Hollenbeck <dick@...>
Wed, 05 Mar 2008 06:20:32 -0600
Thunderbird 184.108.40.206 (X11/20080227)
Tim Hanson wrote:
I've been fiddling around with the new zones & filling, and I'm super
However, the zone fill algorithm does not know that it does not need
to avoid micro or laser-drilled vias from the component to layer 2
when filling a ground plane on layer 1. Presumably the layer stack
is Component:Layer 2:Layer 1:Copper in this 4-layer board; i saw no
options to change the layer connections for these micro-vias(?). Can
fix this if somebody points me in the right direction...
Also, shouldn't a zone fill eliminate ratsnest lines appropriately?
How to fix this?
I would say that the "zone container" should be sufficient to eliminate
ratsnest lines, even without a zone fill. The zone fill is an
implementation detail of zones specific to Kicad, a quirky remnant that
could actually be done much later in the board generation process or
even at gerber file generation time.
But your point remains.
There are folks who say that undo is our next most important
deficiency. And although I also rate that as extremely important, and
nearly as important as the point you re-iterate, I still think this zone
issue that you raise again is more important than undo redo:
This posting seemed to have suggested that Jean-Pierre was going to work
on it, but I have seen no progress on it yet:
So somebody needs to get this done.
Yesterday I ran the menu option "Miscellaneous | Track Operation | and
Delete Unconnected Tracks". Some of my tracks ended at vias going into
zones, because the board was properly routed by freerouter. But this
option yanked out those tracks because they did not all tie together to
other power pads. You begin to get the idea of how big a problem this
can be when you have over 400 parts on a board like I do. It is bigger
than undo redo for this board anyway.