kicad-developers team mailing list archive

[Eeli Kaikkonen <eeli.kaikkonen@xxxxxxxxx>]

2018-04-28 15:04 GMT+03:00 Rene Pöschl <poeschlr@xxxxxxxxx>:

> The global settings here are less for ensuring correct alignment and more
> for a global paste reduction.


That's right, that's what I meant. In the example datasheet you have 0.05mm
tolerance for the location of the mask in relation to the copper because.
But making the mask openings larger or smaller by 0.05mm would be against
the recommendation.

It just doesn't make sense to apply global paste and solder mask clearance
values to "pads" which don't have copper. The whole reason why non-copper
pads can exist is that you need control over the size, shape and location
of paste or mask, right? Changing the behavior could lead to problems but
luckily the current behavior can be circumvented by adding to clearance
fields a very small value which is negligible in practice.

Eeli Kaikkonen