solderbridges fail DRC checks

Bug #1816002 reported by Dick Hollenbeck
10
This bug affects 2 people
Affects Status Importance Assigned to Milestone
KiCad
Fix Released
Unknown

Bug Description

I like the new solder-bridge footprints. Somebody spent a *lot* of time on them using pads. And they are beautiful. The 'normally closed' versions are flunking the DRC checks because the pads are touching, as they should in a normally closed version. I have a few similar footprints that used a copper layer rectangle to do the normally closed bridge. They also flunk the new DRC, whereas they would get a pass before. I had to comment that DRC test out in order to not ruin my signal to noise ratio in the DRC error summary. (This can quickly ruin your confidence on a board that once did pass.)

I think we either need to support tracks in footprints, or provide some kind of exclusion for solder-bridge footprints, either by name or by flag, or something better. Did I miss something somewhere that is a work around?

Tags: drc pcbnew
Revision history for this message
Jeff Young (jeyjey) wrote :

@Dick, there's a hack that you can use for now as a back door: make sure your Keywords start with "net tie".

This is just until we make net ties first-class citizens.

Revision history for this message
Seth Hillbrand (sethh) wrote :

@Jeff- Unfortunately, that hack only works for draw items to pad clearance. The library solder-bridge footprints are made using custom pads that are overlapping. And we can't simply mark pad-to-pad in the same footprint as passing without breaking a large usecase for DRC.

I think we need to have librarians address this for 5.1 until we can set a flag for pad connections in v6.

Revision history for this message
Seth Hillbrand (sethh) wrote :

Looks like there is already an issue open for this (https://github.com/KiCad/kicad-footprints/issues/1165) And there is a proposed fix. It would be good if it were merged for the 5.1 libraries.

Revision history for this message
Dick Hollenbeck (dickelbeck) wrote :

@Seth,

Once again your tip was very helpful. Going to 2 rectangles
roughly matching the supporting headers, let me put the daughter boardlet above the fray.

Jeff Young (jeyjey)
Changed in kicad:
status: New → Triaged
importance: Undecided → Medium
milestone: none → 6.0.0-rc1
summary: - solderbridge DRC check omission request
+ solderbridges fail DRC checks
tags: added: drc pcbnew
Revision history for this message
KiCad Janitor (kicad-janitor) wrote :

KiCad bug tracker has moved to Gitlab. This report is now available here: https://gitlab.com/kicad/code/kicad/-/issues/1798

Changed in kicad:
status: Triaged → Expired
Changed in kicad:
importance: Medium → Unknown
status: Expired → Fix Released
To post a comment you must log in.
This report contains Public information  
Everyone can see this information.

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.