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Footprint Origin

Printed From: PCB Libraries Forum
Category: PCB Footprint Expert
Forum Name: Questions & Answers
Forum Description: issues and technical support
URL: https://www.PCBLibraries.com/forum/forum_posts.asp?TID=2681
Printed Date: 22 Nov 2024 at 4:41am


Topic: Footprint Origin
Posted By: wizare2019
Subject: Footprint Origin
Date Posted: 22 Sep 2020 at 7:32am
Is there a IPC-7351 standard for Footprint Origin? Please help me!

I see the PCB Library Expert Tools always chooses the center of Footprint to set Origin. 

But, I am confused is it the IPCB standard?


Replies:
Posted By: Tom H
Date Posted: 22 Sep 2020 at 8:01am
Library Expert allows you to set the origin anywhere you want. 

The default is Centroid (center of gravity) because that's what the Assembly "Pick & Place" machines use. 

There is no IPC standard for the origin of the footprint. Use common sense for DFA. 



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