| ID: | 4464 |
| From: | ge...@igor2.repo.hu |
| Date: | Mon, 26 Oct 2020 14:08:25 +0100 (CET) |
| Subject: | Re: [pcb-rnd] Bug: polygons connected to nets are ignored in DRC |
| in-reply-to: | 4316 from Majenko Technologies <ma...@majenko.co.uk> |
| replies: | 4466 from Majenko Technologies <ma...@majenko.co.uk> |
On Tue, 1 Sep 2020, Majenko Technologies wrote: >A polygon connected to a net (for example a ground plane) is ignored by DRC >clearance tests. In the attached PCB the connection between C101 and C102 >(net LINK) should fail DRC as the clearance is below the specified 0.15mm >between it and the ground (net GND). But it doesn't. Thanks, fixed in r33178, please test! Note: the short will be reported exactly twice, and that's intentional: it is found from both nets point-of-view (that's why the red-blue highlight swaps between the two reports). In extreme cases, with more complicated drc rules you may find an asymmetric case, e.g. a high voltage network requires a 4mm clearance, but plain signals require only 0.2mm, and you have 3mm - that way only the high voltage net would flag this as a violation. Regards, Igor2
Reply subtree:
4464 Re: [pcb-rnd] Bug: polygons connected to nets are ignored in DRC from ge...@igor2.repo.hu
4466 Re: [pcb-rnd] Bug: polygons connected to nets are ignored in DRC from Majenko Technologies <ma...@majenko.co.uk>