PCB Libraries Forum : Adding Minimum Annular Ring for Keepout https://www.PCBLibraries.com/forum/ Tue, 14 Apr 2026 18:04:52 +0000 Sun, 07 Sep 2025 13:00:37 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.07 360 https://www.PCBLibraries.com/forum/RSS_post_feed.asp?TID=3527 <![CDATA[PCB Libraries Forum]]> https://www.PCBLibraries.com/forum/forum_images/PCBLForumLogo.gif https://www.PCBLibraries.com/forum/ <![CDATA[Adding Minimum Annular Ring for Keepout : Making the non-plated keep-out...]]> https://www.PCBLibraries.com/forum/adding-minimum-annular-ring-for-keepout_topic3527_post13989.html#13989 Author: Tom H
Subject: 3527
Posted: 07 Sep 2025 at 1:00pm

Making the non-plated keep-out size smaller than the plane anti-pad is not good PCB design practice. 

Your signal traces need a clean return path on the GND plane. 

We like to prevent traces from running over a Plane Anti-pad. 

Your request for this feature was declined based on good PCB design principles and guidelines. 

]]> Sun, 07 Sep 2025 13:00:37 +0000 https://www.PCBLibraries.com/forum/adding-minimum-annular-ring-for-keepout_topic3527_post13989.html#13989 <![CDATA[Adding Minimum Annular Ring for Keepout : Thanks, Tomi have 2 points1- not...]]> https://www.PCBLibraries.com/forum/adding-minimum-annular-ring-for-keepout_topic3527_post13987.html#13987 Author: m.elsayed
Subject: 3527
Posted: 07 Sep 2025 at 12:09pm

Thanks, Tom
i have 2 points
1- not every user need to update option file manually, like any other feature there is default values, so if user doesn't want change default, will leave it with no change, and if user want change , will have ability to change, it will be great idea
2- from shown screen how i control min annular ring, for example if want make it 0.635 
]]> Sun, 07 Sep 2025 12:09:30 +0000 https://www.PCBLibraries.com/forum/adding-minimum-annular-ring-for-keepout_topic3527_post13987.html#13987 <![CDATA[Adding Minimum Annular Ring for Keepout : Only connectors have non-plated...]]> https://www.PCBLibraries.com/forum/adding-minimum-annular-ring-for-keepout_topic3527_post13986.html#13986 Author: Tom H
Subject: 3527
Posted: 07 Sep 2025 at 10:59am

Only connectors have non-plated holes.

We know you want this to be automatic, but this would force every Footprint Expert user to manually update the Options. Right now it's on automatic per the same size as the Anti-pad and that's the way it's been for the past 20 years.

You can edit the pad stack keep-out in the Pad Stack Manager. 


 
]]> Sun, 07 Sep 2025 10:59:49 +0000 https://www.PCBLibraries.com/forum/adding-minimum-annular-ring-for-keepout_topic3527_post13986.html#13986 <![CDATA[Adding Minimum Annular Ring for Keepout : can this feature be added in option...]]> https://www.PCBLibraries.com/forum/adding-minimum-annular-ring-for-keepout_topic3527_post13983.html#13983 Author: m.elsayed
Subject: 3527
Posted: 06 Sep 2025 at 11:27pm

can this feature be added in option file like what be proposed for keep out diameter ]]> Sat, 06 Sep 2025 23:27:46 +0000 https://www.PCBLibraries.com/forum/adding-minimum-annular-ring-for-keepout_topic3527_post13983.html#13983 <![CDATA[Adding Minimum Annular Ring for Keepout : Add a minimum annular ring for...]]> https://www.PCBLibraries.com/forum/adding-minimum-annular-ring-for-keepout_topic3527_post13956.html#13956 Author: m.elsayed
Subject: 3527
Posted: 03 Sep 2025 at 7:41am

Add a minimum annular ring for keep-out for non-plated holes in 'Tools > Options > Terminals > Through-hole'. 

The current method of making the non-plated hole keep-out the same size as the Anti-pad does not work it you need a keep-out clearance larger or smaller than the Anti-pad. 

]]> Wed, 03 Sep 2025 07:41:33 +0000 https://www.PCBLibraries.com/forum/adding-minimum-annular-ring-for-keepout_topic3527_post13956.html#13956