FreePCB libraries

nonsqtr · 17th December 2010, 03:32 AM

Does anyone know where I can get a decent set of FreePCB footprint libraries? Thanks in advance!

marce · 18th December 2010, 12:26 PM

For what system.
If you are gonna use SMD look at IPC-7351 and related guidelines, and this
http://www.fed.de/downloads/The_CAD_...the_Future.pdf

davidsrsb · 19th December 2010, 07:33 AM

Pad shapes and dimensions are dependent on soldering process.

marce · 19th December 2010, 09:46 AM

Follow the guidlines in the IPC-7351 library and you cant go wrong. The most land patterns within the spec are suitable for wave soldered SMD components, though these days the number of SMD components suitable for wave soldering is diminishing, assembly is preffered using the 'selective soldering' process.
It is a well developed standard, that covers all aspects of SMD land pattern design, patterns that have been tested and used on numerous boards throughout the world by numerous companies. Plus all the work has been done for you, especially if you can get hold of any of the inteactive tools.

marce · 19th December 2010, 11:38 AM

IPC-7351 Land Pattern Calculator and Tools

IPC-7351 resource page

17th December 2010, 03:32 AM	#1
nonsqtr diyAudio Member Join Date: Dec 2010	FreePCB libraries Does anyone know where I can get a decent set of FreePCB footprint libraries? Thanks in advance!

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18th December 2010, 12:26 PM	#2
marce diyAudio Member Join Date: Jun 2007 Location: Blackburn, Lancs	For what system. If you are gonna use SMD look at IPC-7351 and related guidelines, and this http://www.fed.de/downloads/The_CAD_...the_Future.pdf

19th December 2010, 07:33 AM	#3
davidsrsb diyAudio Member Join Date: Dec 2005 Location: Kuala Lumpur	Pad shapes and dimensions are dependent on soldering process.

19th December 2010, 09:46 AM	#4
marce diyAudio Member Join Date: Jun 2007 Location: Blackburn, Lancs	Follow the guidlines in the IPC-7351 library and you cant go wrong. The most land patterns within the spec are suitable for wave soldered SMD components, though these days the number of SMD components suitable for wave soldering is diminishing, assembly is preffered using the 'selective soldering' process. It is a well developed standard, that covers all aspects of SMD land pattern design, patterns that have been tested and used on numerous boards throughout the world by numerous companies. Plus all the work has been done for you, especially if you can get hold of any of the inteactive tools.

19th December 2010, 11:38 AM	#5
marce diyAudio Member Join Date: Jun 2007 Location: Blackburn, Lancs	IPC-7351 Land Pattern Calculator and Tools IPC-7351 resource page

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