PCB Libraries Forum : Finished Hole Calculation https://www.PCBLibraries.com/forum/ Mon, 06 Apr 2026 10:46:16 +0000 Thu, 17 Jul 2025 06:04:36 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.07 360 https://www.PCBLibraries.com/forum/RSS_post_feed.asp?TID=3502 <![CDATA[PCB Libraries Forum]]> https://www.PCBLibraries.com/forum/forum_images/PCBLForumLogo.gif https://www.PCBLibraries.com/forum/ <![CDATA[Finished Hole Calculation : The Lead Diameter is always the...]]> https://www.PCBLibraries.com/forum/finished-hole-calculation_topic3502_post13913.html#13913 Author: Tom H
Subject: 3502
Posted: 17 Jul 2025 at 6:04am

The Lead Diameter is always the Maximum Material Condition. 

The Round Lead fills up the hole and you need more room for solder flow. 

The Rectangular Lead does not fill the hole so a smaller hole size is better.  

However, every solder joint goal in Footprint Expert and every setting in your master Options file is User Definable. Don't use the default values, use your company standard values. 

]]> Thu, 17 Jul 2025 06:04:36 +0000 https://www.PCBLibraries.com/forum/finished-hole-calculation_topic3502_post13913.html#13913 <![CDATA[Finished Hole Calculation : Hi Tom,While calculating the finished...]]> https://www.PCBLibraries.com/forum/finished-hole-calculation_topic3502_post13912.html#13912 Author: Bharat_Verma
Subject: 3502
Posted: 16 Jul 2025 at 11:10pm

Hi Tom,
While calculating the finished hole size, We found the conflicts in Calculation.
We checked the Option file . In that Rectangular lead has lesser value then round ?
So, One of the value is wrong , It has to be larger.




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