kicad-developers team mailing list archive

[Rene Pöschl <poeschlr@xxxxxxxxx>]

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?


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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.)