All GND routes on one layer?


#1

Is there a way to tell the kicad autorouter or freerouter for that matter, to put all my ground routes on
one layer?


#2

Hi,
@acidblue you can create Net classes for GND layer and add all the GND to that layer in autorouter.


#3

Ok great, now how do i do that?
Where do I assign net classes??


#4

Under pcb_new look under Design rules->Design rules.
The first tab of this tool is the netclass editor.


#5

@acidblue
Are you using an external autorouter?


#6

OK this isn’t working for me.
I want all my Ground traces on the bottom layer.
I cannot figure out how to do this.


#7

Why not use a gnd plane?


#8

Yes I want the grounds on a plane, but the auto router keeps putting some
of the traces on the top layer.
I want the router to put all my ground traces on the bottom layer.


#9

Well, Once you define Net classes and add GND to that Net class. Please see attached Image.

  1. Export .dsn file for an external router.
  2. Open your design. Rukes > Net classes.
  3. Change Ground class to which layer you want.

#10

Thank you.
I was hoping to do this with kicad’s auto router but using freerouter is no biggie.