kicad-developers team mailing list archive

[Wayne Stambaugh <stambaughw@xxxxxxxxx>]

On 1/20/2018 10:58 AM, jp charras wrote:
> Le 20/01/2018 à 16:40, Wayne Stambaugh a écrit :
>> I concur.  We should not be violating clearances even in the small
>> amounts in this bug report.  I realize that this change will create a
>> diff when existing designs are refilled but it is a more technically
>> correct solution.  Until (if?) we support arcs for this, I would prefer
>> to err on the side of caution.  @JP and @Tom, the two of you have
>> written most of the polygon generation code, is there any reason not to
>> change this.
>>
>> Cheers,
>>
>> Wayne
> 
> We can temporary use the proposed patch.
> 
> I'll try to calculate (later) a more exact shape.
> Currently the simplified calculation creates a slightly smaller shape than required.
> (No need to wait for arc support: just enhance the current calculation to create a better shape)

Hey JP,

How soon is "later"?  If you can get this fixed in the next week or so,
then I would rather not use a temporary patch.  However, if later is two
months from now, then applying this patch makes more sense.

Thanks,

Wayne

> 
> The proposed patch creates a slightly bigger shape than required.
> 
>>
>> On 1/19/2018 10:30 AM, Maciej Sumiński wrote:
>>> After reading the bug report, I consider the changes proposed by Julius
>>> sensible. What do you think? In particular I am asking our geometry experts.
>>>
>>> Regards,
>>> Orson
>>>
>>> On 11/02/2017 03:18 PM, Julius Schmidt wrote:
>>>> Hello,
>>>>
>>>> I filed a bug [1] a while ago pertaining to oval pads in zones leading
>>>> to clearance violation in the Gerber output.
>>>> I've tested the current master revision
>>>> (e5c4cfc3b01724de705609c901575b40cd3958b4) and it still seems to be an
>>>> issue.
>>>>
>>>> I'd appreciate it if someone took a look, as it is a bug that is
>>>> potentially serious in production, since it can lead to Gerbers that
>>>> violate clearance (even though the board passes kicad DRC).
>>>>
>>>> Best wishes
>>>>
>>>> Julius
>>>>
>>>> [1] https://bugs.launchpad.net/kicad/+bug/1665582
>>>>
>>>>
>>>>
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>>>
>>>
>>>
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>>
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> 
>