Hi, i’m using KiCad 5.1.0 and I have a problem with my current pcb: I created a GND Polygon on the B.Cu layer and everything seems fine but one particular pin out of a 1x4 pinheader refuses to connect automatically to the GND Polygon. Look at J5 in the following screenshot:
Anyone knows why this happens? When I move the pinheader left or right it doesn’t change. When I move it slightly(!) up or down it works again. Why?!
Greetings, Paul
Here the screenshot with a shifted pinheader: (can’t currently upload more than one image per post bc i’m a new user)
It might be caused by some remnant of a track in the neighborhood of J5 pin2.
Such things are more easy to see if you do not fill the Zones / tracks / pads, and you can do that with the icons on the left of your screen.
Sometimes it helps if you adjust the clearance and spoke widht of the zone, but your problem seems to be related to the location of the header on the PCB, which makes the first cause more likely.
If you post the xxx.kicad_pcb here, then I (and probably others) can have a look at it to diagnose the problem.
I routet the pcb from scratch and the problem occured pretty much from the beginning. I also came to the idea that there might be some remnant of a track but when I turn off the filling (which is the normal mode in which I’m doing my routing anyway) I can’t see any concerns.
Unfortunately I’m not allowed to upload attachments so I uploaded the pcb file to my webspace: http://www.the-powl.de/misc/LTC6802-2_breakoutboard2.kicad_pcb
I ran your pcb in 5.1 and with a push of B it filled in correctly.
Cheers
Amazing!!!
I have moved the connector a little downwards as you suggested and fill is alright.
I have changed the filling mode to solid, fill is alright.
I have changed the zone signal to VMEM, VPP and C6. Fill is alright for VMEM while VPP and C6 show the same problem.
I have looked for hidden tracks: no hidden tracks.
My version is 5.1.0 under ubuntu/kubuntu
xubuntu 18.04 LTS here, and the most recent KiCad 5.1 release.
As I said, when I load your pcb it shows up with with B.Cu filled in, bar those two horizontal traces on J5/2, however as soon as I press B it fills in correctly.
One thing seems obvious that there is nothing near that pin justifying that behaviour.
Hard to tell what the problem might be.
Cheers
Ran it through the most recent 5.1 (git pull) compiled a few moments ago and your pcb comes up correctly straight away without the need to press B!
Meaning that there appears to be an issue with the current official 5.1 release.
Hope this clarifies things a bit more.
Cheers
OK so to conclude: it’s a bug. Then I will wait until the next release or create the gerber files for production on another machine or with another version of KiCad. Or I just insert the missing trace by hand. ¯\_(ツ)_/¯
Thanks for you help guys! 
Please report this over at the bugtracker
This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.
