PCB Libraries Forum : Grid for Part Creation and Placement https://www.PCBLibraries.com/forum/ Tue, 07 Apr 2026 15:56:19 +0000 Mon, 30 Sep 2019 10:42:09 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.07 360 https://www.PCBLibraries.com/forum/RSS_post_feed.asp?TID=2533 <![CDATA[PCB Libraries Forum]]> https://www.PCBLibraries.com/forum/forum_images/PCBLForumLogo.gif https://www.PCBLibraries.com/forum/ <![CDATA[Grid for Part Creation and Placement : It depends on the type of PCB...]]> https://www.PCBLibraries.com/forum/grid-for-part-creation-and-placement_topic2533_post10423.html#10423 Author: Tom H
Subject: 2533
Posted: 30 Sep 2019 at 10:42am

It depends on the type of PCB layouts you have. High Density or Low Density. 

For PCB layouts that have Low Density part placements, the best PCB library "Pad Size" round-off and "Pad Place Round-off" grid would be 0.05 mm. The Part Placement Grids are 1 mm for large parts, 0.5 mm for medium size parts and 0.1 mm for small parts.

For PCB layouts that have High Density part placements, the best PCB library "Pad Size Round-off" and "Pad Place Round-off" grid would be 0.01 mm. The Part Placement Grids are 1 mm for large parts, 0.5 mm for medium size parts and 0.1 mm for small parts.

Trace Width is 0.1 mm and route grid is 0.05 mm. Here is the routing example where SMD via fanout is on a 0.5 mm grid system placed 1 mm apart. 


]]> Mon, 30 Sep 2019 10:42:09 +0000 https://www.PCBLibraries.com/forum/grid-for-part-creation-and-placement_topic2533_post10423.html#10423 <![CDATA[Grid for Part Creation and Placement : Hi,I have a basic question that...]]> https://www.PCBLibraries.com/forum/grid-for-part-creation-and-placement_topic2533_post10422.html#10422 Author: USER2
Subject: 2533
Posted: 30 Sep 2019 at 10:23am

Hi,

I have a basic question that i would like to hear opinions -

What grid value we should use for any type of part creation? 

Surface Mount and Through-hole both small & big?

What is the placement grid should be used for design?

Thanks!

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