Pad Trimming at the Body Outline of a Package |
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Guido
Active User Joined: 21 Mar 2014 Status: Offline Points: 25 |
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Posted: 24 Mar 2014 at 9:14am |
Hello,
in the old Land Pattern Viewer the SMD-Pads were trimmed at the body outline of a package. http://www.pcblibraries.com/forum/uploads/9646/LP_Viewer.png In the Library Expert Lite the pads go below the package. http://www.pcblibraries.com/forum/uploads/9646/Library_Expert_Lite.png Is there any setting to force the Library Expert to trim the pads at the body outline of a package? Best Regards Guido |
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Tom H
Admin Group Joined: 05 Jan 2012 Location: San Diego, CA Status: Offline Points: 5718 |
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IPC Standards does not like the software default to be set to "Trim Pads Under Low stand-off Component", but the feature is still in the program and you have control of the "Stand-off Size" too. Go to "User Preferences" and select the "Rules" tab and enter any standoff value you want to start pad trimming under component body at - |
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Guido
Active User Joined: 21 Mar 2014 Status: Offline Points: 25 |
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Hello Tom,
this option is exact what I was looking for. Thank you very much. As I use the Library Expert Lite I can't change the User preferences. But this is no major problem. I can change this setting every time when I built a new footprint. Best Regards Guido |
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Tom H
Admin Group Joined: 05 Jan 2012 Location: San Diego, CA Status: Offline Points: 5718 |
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With the "Lite" version you have to setup all your personal preference rules for each library part. With the "Pro" version you set everything up once and use it over and over. The next BIG thing coming out is free FPX file download for "Pro" users. Search, Find and Download thousands of FPX files and never type in any component dimensions or find the right component family or manually enter all the attributes and datasheet links in your library documentation. As a special bonus, PCB Libraries, Inc. will add any missing FPX file to "Parts on Demand" as quickly as possible. "Lite" users will not have access to this library service to expedite and eliminate labor spent on PCB library creation. |
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Nick B
Admin Group Joined: 02 Jan 2012 Status: Offline Points: 1908 |
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RandyB
Active User Joined: 04 Feb 2013 Location: USA Status: Offline Points: 14 |
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The trim does not seem to be working SODs, either that or I do not have the rule set correctly. See attached .jpgs
Thanks, Randy |
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Jeff.M
Admin Group Joined: 16 May 2012 Location: San Diego Status: Offline Points: 477 |
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Trim is applied when the the Rule is set to a value greater than zero and the component standoff height (A1) dimension is less than the value entered for the rule.
That said, this is still a bug in the SOD footprint.
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