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Software Creating Airwires and Flagging Them as DRC Errors

5 REPLIES 5
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Message 1 of 6
RCBakerBorn
191 Views, 5 Replies

Software Creating Airwires and Flagging Them as DRC Errors

Just finished a PCB design and going through the DRC.

Had many errors and started cleaning them up.

However, I am noticing hundreds of airwire errors.

When I click on them, it is saying there is an airwire on a pad.

I know I made the connection, manually, from via to pad but it states there is an airwire.
When I made the connection, I saw the X before I released my mouse button.

The sound on my computer also reacted.

Now, I have to waste time rerunning the traces to fix errors Fusion 360 software created.

A big waste of time.

 

5 REPLIES 5
Message 2 of 6
jorge_garcia2
in reply to: RCBakerBorn

Hi @RCBakerBorn,

 

I hope you're doing well. Try filling in the polygons and then run the DRC again. You'll probably find that most of those airwires will go away. Make sure that you are running the DRC and not just clicking the ERRORS dialog.

 

Let me know if there's anything else I can do for you.

 

Best Regards,



Jorge Garcia
​Product Support Specialist for Fusion 360 and EAGLE

Kudos are much appreciated if the information I have shared is helpful to you and/or others.

Did this resolve your issue? Please accept it "As a Solution" so others may benefit from it.
Message 3 of 6
RCBakerBorn
in reply to: jorge_garcia2

Filling the polygons helped with almost half of the airwires but I still had many airwires beyond the polygon pours. My co-worker was also working with me on the project as well and noticed the same thing.

Message 4 of 6
jorge_garcia2
in reply to: RCBakerBorn

Hi @RCBakerBorn,

 

I hope this message finds you well. If you have a bunch of short airwires this would be indicative of not taking routes all the way to the center of the pad. You can fix them quickly by just running the autorouter.

 

If you see long airwires then that would seem more like missed connections. 

 

These are just some ideas but if you can provide more info we can figure out if anything else is at play here.

 

Best Regards,



Jorge Garcia
​Product Support Specialist for Fusion 360 and EAGLE

Kudos are much appreciated if the information I have shared is helpful to you and/or others.

Did this resolve your issue? Please accept it "As a Solution" so others may benefit from it.
Message 5 of 6
RCBakerBorn
in reply to: jorge_garcia2

Hey Jorge,

 

Thank you for your reply. All the airwires we noticed were very short. We eventually deleted the existing traces and ran new ones. This fixed the issue.

 

Most of the airwires were at a connection where there were two traces running to the same pad.

 

However, as I mentioned before, we made the connections to the x on the pad and the computer made the connection sound.

 

Something I noticed when deleting the old traces to run new ones is that one trace was connected to another trace instead of the pad. I was able to see this when I moved the trace before deleting it. I had to do this because of the PCB is a multilayer and some traces were run on top of a trace from another layer.

Message 6 of 6
jorge_garcia2
in reply to: RCBakerBorn

Hi @RCBakerBorn ,

 

Hmmm... that would seem to imply that at some point a trace didn't quite reach the center of the pad, subsequent traces then possibly snapped to that instead of the center of the pad.

 

I'm glad you were able to resolve the issue. If there's anything else I can do for you, please let me know.

 

Best Regards,



Jorge Garcia
​Product Support Specialist for Fusion 360 and EAGLE

Kudos are much appreciated if the information I have shared is helpful to you and/or others.

Did this resolve your issue? Please accept it "As a Solution" so others may benefit from it.

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