PCB Libraries Forum : 3D Options: Material Condition https://www.PCBLibraries.com/forum/ Tue, 14 Apr 2026 13:53:43 +0000 Fri, 10 Feb 2023 11:49:01 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.07 360 https://www.PCBLibraries.com/forum/RSS_post_feed.asp?TID=3207 <![CDATA[PCB Libraries Forum]]> https://www.PCBLibraries.com/forum/forum_images/PCBLForumLogo.gif https://www.PCBLibraries.com/forum/ <![CDATA[3D Options: Material Condition : The Nominal density level is the...]]> https://www.PCBLibraries.com/forum/3d-options-material-condition_topic3207_post12862.html#12862 Author: Tom H
Subject: 3207
Posted: 10 Feb 2023 at 11:49am

The Nominal density level is the most popular in the commercial industry. 

Military weapons contractors seem to use the Maximum density level for 3D models. 

Least is never used by anyone. 

]]> Fri, 10 Feb 2023 11:49:01 +0000 https://www.PCBLibraries.com/forum/3d-options-material-condition_topic3207_post12862.html#12862 <![CDATA[3D Options: Material Condition : These refer to the +/- tolerance...]]> https://www.PCBLibraries.com/forum/3d-options-material-condition_topic3207_post12851.html#12851 Author: boardrouter
Subject: 3207
Posted: 10 Feb 2023 at 8:57am

These refer to the +/- tolerance of the feature:

Least = the minimum dimension 
Nominal = the midpoint between least and most
Most = the maximum dimension

Example 1 (symmetrical tolerance):
3.57 +/-0.10
Least= 3.47
Nominal= 3.57
Most= 3.67

Example 2 (asymmetrical tolerance): 
3.67 +0.000/-0.20
Least= 3.47
Nominal= 3.57
Most= 3.67

Typically the nominal value is the stated dimension where the + and the - tolerances are equal, as in Example 1.


]]> Fri, 10 Feb 2023 08:57:03 +0000 https://www.PCBLibraries.com/forum/3d-options-material-condition_topic3207_post12851.html#12851 <![CDATA[3D Options: Material Condition : Dear Tom,Many thanks for your...]]> https://www.PCBLibraries.com/forum/3d-options-material-condition_topic3207_post12762.html#12762 Author: dramos
Subject: 3207
Posted: 10 Jan 2023 at 12:12am

Dear Tom,

Many thanks for your fast answer. 

Regards,
David
]]> Tue, 10 Jan 2023 00:12:56 +0000 https://www.PCBLibraries.com/forum/3d-options-material-condition_topic3207_post12762.html#12762 <![CDATA[3D Options: Material Condition : There are 3 columns of dimensional...]]> https://www.PCBLibraries.com/forum/3d-options-material-condition_topic3207_post12761.html#12761 Author: Tom H
Subject: 3207
Posted: 09 Jan 2023 at 9:42am

There are 3 columns of dimensional data in the Footprint Expert component family calculators. 

Nom / Min / Max and when you select a Material Condition, the 3D STEP output will use the column of data that you select. The default setting is "Nominal" material condition. 


 
]]> Mon, 09 Jan 2023 09:42:06 +0000 https://www.PCBLibraries.com/forum/3d-options-material-condition_topic3207_post12761.html#12761 <![CDATA[3D Options: Material Condition : Hi to all,I cannot understand...]]> https://www.PCBLibraries.com/forum/3d-options-material-condition_topic3207_post12760.html#12760 Author: dramos
Subject: 3207
Posted: 09 Jan 2023 at 2:26am

Hi to all,

I cannot understand very well the meaning of the parameter Material condition (Least, Nominal, Most).
Which is the meaning of it? Which is the difference?



Is there any relation with the Density Level of the footprint created?
I mean, if I am creating a footprint with Most material condition should I choose the 3D Material condition as Most? 

Regards,
david
]]> Mon, 09 Jan 2023 02:26:52 +0000 https://www.PCBLibraries.com/forum/3d-options-material-condition_topic3207_post12760.html#12760