With quick testing, without looking into the source, 0.000001 works, 0.0000009 will be changed to 0.000001 and 0.0000001 will be changed to 0.
>From the usability point of view this is, well, I don't have to say. In the GUI it would be relatively easy to add "inherit" and "use value" options instead of just using the values in non-intuitive way which has to be explained with extra text in every place and which leads to this kind of odd situations where a user can even by accident send buggy files to a manufacturer (I think it happened to me once!). But I guess it would be a compatibility issue in the board file level. Eeli Kaikkonen 2018-04-27 22:16 GMT+03:00 Rene Pöschl <[email protected]>: > We (the librarians) discovered that our workflow (or is it a workaround > for missing features) of defining special paste or mask areas does not work > as intended. > > We use paste or mask only pads (no copper, only past or mask selected, no > pin number assigned) to specify mask/paste areas if we can not use the > normal way of defining them. (example a large exposed pad needs split up > paste areas.) These pads naturally have a clearance setting of 0 which > tells kicad that the project settings should be applied. (We did not think > about that.) > > To avoid this i assume we will need to set a small clearance in such pads > as a workaround. What is the smallest value possible that can be used? > > > --- > > > And a strange observation i made regarding polygon pads. One can not set a > negative soldermask clearance on the pad level. (soldermask defined pad) > But a negative clearance on the footprint level is possible. (and results > in the expected mask area reduction.) > > > _______________________________________________ > Mailing list: https://launchpad.net/~kicad-developers > Post to : [email protected] > Unsubscribe : https://launchpad.net/~kicad-developers > More help : https://help.launchpad.net/ListHelp >
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