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How to add NC pins to class rules so that I can pour copper on pins near NC pins with high clearance rule.

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rbkyorem
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How to add NC pins to class rules so that I can pour copper on pins near NC pins with high clearance rule.

How to add NC pins to class rules so that I can pour copper to those pins with high clearance rule?


I have a work around for my self as seen below. Naming those pins and adding them to class but this gives schematic warnings.

rbkyorem_0-1622730516032.png

Below the problematic copper pour on PCB due to NC pins still belonging to default class instead of ISOLATED class 
ISOLATED and default have 20mil clearance between. Although it is connected, Fusion 360 shows it as not connected due to copper pour not able to reach the center of pins.

rbkyorem_1-1622730683642.png

Here after my workaround.

rbkyorem_2-1622730772301.png

 

 

1 REPLY 1
Message 2 of 2
jorge_garcia2
in reply to: rbkyorem

Hi @rbkyorem ,

 

I hope you're doing well. This is a tricky situation, connecting the NC pins violates the DRC so I would hesitate to recommend that as a solution. 

 

An easy workaround would be to use the same solution you are currently using but to change the pin type to something other than NC.

 

Another option would be to add cutout polygons around those pins to isolate them further from the poly. If they will truly never connect, it might be possible to add the cutout polygon to the library part (I'm not 100% sure I haven't tried it).

 

You can't assign netclasses to pins unfortunately. 

 

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.

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