kicad-developers team mailing list archive

[Jon Evans <jon@xxxxxxxxxxxxx>]

There can also be very good reasons to want to generate isolated copper
islands :-) I guess there was recently a debate about this on this email
list.  It should be an option on a per-zone basis IMHO, although I'm fine
with it being disabled by default.  You are right that if island generation
is not allowed, the algorithm would have to pick up on new islands and
propagate the zone update around.

-Jon

On Tue, Sep 19, 2017 at 2:46 PM, José Ignacio <jose.cyborg@xxxxxxxxx> wrote:

> If your traces "choke" a zone out so that it can't fill the other side it
> may affect a very large area of the board. And it is the kind of thing
> you'd like to watch out for when you're moving traces around. For very good
> reasons Kicad will not fill isolated islands of copper if there is no
> direct connectivity to the net. (I have seen a case where eagle doesn't do
> that and a board went to production with a nonfunctional ground pour -_-)
>
> On Tue, Sep 19, 2017 at 12:51 PM, Kevin Cozens <kevin@xxxxxxxxx> wrote:
>
>> On 2017-09-19 01:08 PM, Jon Evans wrote:
>>
>>> Thanks for the detailed feedback. I was definitely thinking of this as a
>>> long-term (post 5.0) project.  I will take a look at the various aspects
>>> you mention and come back with a more detailed proposal.
>>>
>>
>> Live update of zone fills in the PNS router would be an interesting
>> feature to have. As to breaking the fill zone in to segments you don't need
>> to go quite that far.
>>
>> There are only two areas of concern. They are the area where the item
>> used to be located, and the area where the item is now located. You can
>> ignore the rest of the board when updating the fill zone.
>>
>> --
>> Cheers!
>>
>> Kevin.
>>
>> http://www.ve3syb.ca/           |"Nerds make the shiny things that
>> distract
>> Owner of Elecraft K2 #2172      | the mouth-breathers, and that's why
>> we're
>>                                 | powerful!"
>> #include <disclaimer/favourite> |             --Chris Hardwick
>>
>>
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>
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