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Re: Fwd: Re: What are the smallest values for pad paste and mask clearances? Why can't polygon pads not use negative mask clearance?

 

On 28/04/18 09:28, jp charras wrote:
For custom shaped pads, building a solder mask shape with a negative margin can create issues
(unpredictable shape for non convex polygons).
So it is not allowed.


One can set a negative margin in the footprint itself. This negative margin is then used for custom pads with the footprint as well.

I would guess that a project global negative value will also apply to custom pads. You might want to look into that. (It does not really make sense to disable this on only one point where you can set this value. If negative values can break something then it does not matter where they come from.)



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