Hi there
Using Kicad.
Whenever i add a GRND Zone too my boards I always get a ‘8ml trace and space error’.
Spacing and tracks are set to min 8ml in Kicad
When i remove the zone my design passes.
For some of my small boards that might be ok, but for the larger(more components), ones having a GRND zone is necessary, imho.
This is most likely a Kicad problem, than a PCBbatch one.
Just want to ask if anyone else has en counted this problem?
Also if you had a solution?
If I remember my testing with KiCAD right it constructs ground planes by laying a grid on a board and filling in all the spots that are open or part of the ground net. (rounding corners as necessary ofc) The ground plane is thus made of many touching narrow traces and the DRC bot complains if the grid spacing (and thus trace width) is less than 8mill. Try a courser spacing ground plane and see if the DRC bot likes that better.
Lawson
so you have gotten kicad results what plot and drill settings did you use?
KiCad draws ground planes with a trace around the perimeter and then goes back and fourth with overlapping traces to fill the interior. Under ‘Zone Fill Options’, ‘Zone Min. thickness value’ controls the size of this trace. The defult may have been smaller than BatchPCB’s min.
These settings would for me.
Thanks I will try that so it is a hatched ground plane your showing that would not cause spacing clearance errors.
I set both zone clearance and zone minimal thickness to 0.009 and my designs pass the DRC bot.
