Hi,
What’'s the correct way to work with Net Classes and Track widths?
For example in the attached schematics, how do I tell the schematic that the net between D201 and C201 should have the same net class as the net labeled 12V_filtered? Obvisouly, putting the same label doesn’t work since that will cause the netlist to connect them.
Afaik KiCAD doesn’t track net classes / track widths in EEschema (yet).
One does that in PCBnew in the Design Rules Editor.
Ok, so there are really only two options to tell PCBnew to use a certain net class for a certain net?
Also, why does the degin rules dialog only display some of the pads? For example, my connector has four pads, but only the fourth is shown?
Answer:
As for…
Yes, IMHO.
But maybe someone else who uses this a lot more (I’m just a glorified mod here, not a KiCAD Guru 
) has a better answer. Sorry.
Sorry, I don’t understand. It auto generates nets for all the pads, so why don’t them all show up?
Because a net has at least 2 endpoints…
J204-Pad3 could also be listed as C205-Padx, C203-Padx, D203-Padx, J201-Pad1 and more (if it wasn’t labelled 3.3V, depending on what 3.3V connects to (can’t see the sheet with part references starting at 300, that must obviously be there for your netlist to make sense for example).
Oh, right. It doesn’t list the PAD, its the NET. Thanks!. 
You should have your labeled nets in that list… i.e. 12V_Source, 12V_filtered, 3.3V_out, aso…
Yes, they’re all there.
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