I’m just starting in Kicad, coming from using design services. I want to make sure I fully understanding how Kicad controls pad sizes etc. Please look at the below and let me know if there are any mistakes or misconceptions.
Drilled hole, specified in footprint library else modified in PCB Editor hole by hole.
No “automatic” rule exists (like for solder mask relative to pad OD)
Pad OD: pretty much the same as for Drilled hole.
Solder Mask OD. Calculated by the pad OD + 2 x Solder mask clearance
Specified in: Setup / Pad to Mask Clearance: Solder mask clearance.
Keep out area around pad. If another pad or trace falls into this area an error is generated (DRC)
Defined by “clearance” value in Setup / Design Rules / NetClasses Editor.
Applies to traces as well.
Traces are defined to a NetClass in the routing mode by selecting a track then pressing “E” on the keyboard