PCB Libraries Forum : Question About Pad Place Round-off

PCB Libraries Forum : Question About Pad Place Round-off https://www.PCBLibraries.com/forum/ Tue, 21 Apr 2026 07:28:07 +0000 Fri, 23 Jun 2017 07:36:02 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.07 360 https://www.PCBLibraries.com/forum/RSS_post_feed.asp?TID=2174 <![CDATA[PCB Libraries Forum]]> https://www.PCBLibraries.com/forum/forum_images/PCBLForumLogo.gif https://www.PCBLibraries.com/forum/ <![CDATA[Question About Pad Place Round-off : Pad place round-off is only in...]]> https://www.PCBLibraries.com/forum/question-about-pad-place-roundoff_topic2174_post9011.html#9011 Author: Tom H
Subject: 2174
Posted: 23 Jun 2017 at 7:36am

Pad place round-off is only in 1 direction, the Lead Span pads.

The pitch is always the pitch and there is absolutely no rounding on the pin pitch. The pitch has to be 100% accurate.
]]> Fri, 23 Jun 2017 07:36:02 +0000 https://www.PCBLibraries.com/forum/question-about-pad-place-roundoff_topic2174_post9011.html#9011 <![CDATA[Question About Pad Place Round-off : Additional question, what how...]]> https://www.PCBLibraries.com/forum/question-about-pad-place-roundoff_topic2174_post9010.html#9010 Author: nicolasr
Subject: 2174
Posted: 23 Jun 2017 at 1:48am

Additional question, what how would you do to round off to 0.01 when it is given as pitch (for instance, SOT23 or SOD...)
A pitch of 0.65 gives pads placement at 0.325... despite pad placement round off at 0.02!
]]> Fri, 23 Jun 2017 01:48:00 +0000 https://www.PCBLibraries.com/forum/question-about-pad-place-roundoff_topic2174_post9010.html#9010 <![CDATA[Question About Pad Place Round-off : Oh, didn't see it this way......]]> https://www.PCBLibraries.com/forum/question-about-pad-place-roundoff_topic2174_post9001.html#9001 Author: nicolasr
Subject: 2174
Posted: 22 Jun 2017 at 6:37am

Oh, didn't see it this way... shame on me! Sometimes the simpler the better.
Thanks!]]> Thu, 22 Jun 2017 06:37:19 +0000 https://www.PCBLibraries.com/forum/question-about-pad-place-roundoff_topic2174_post9001.html#9001 <![CDATA[Question About Pad Place Round-off : I believe the pad place round-off...]]> https://www.PCBLibraries.com/forum/question-about-pad-place-roundoff_topic2174_post8997.html#8997 Author: Tom H
Subject: 2174
Posted: 21 Jun 2017 at 8:32am

I believe the pad place round-off is the spacing between the pads.

For example on an 0603 capacitor the space between pin 1 & 2 are rounded to 0.01 increments. Not the distance from the origin to the pin.

Try using a 0.02 pad place round-off and you'll get 0.01 rounding from the origin to the pin.

]]> Wed, 21 Jun 2017 08:32:59 +0000 https://www.PCBLibraries.com/forum/question-about-pad-place-roundoff_topic2174_post8997.html#8997 <![CDATA[Question About Pad Place Round-off : Dear all,There is something I...]]> https://www.PCBLibraries.com/forum/question-about-pad-place-roundoff_topic2174_post8996.html#8996 Author: nicolasr
Subject: 2174
Posted: 21 Jun 2017 at 1:56am

Dear all,

There is something I definitely do not understand with PCB Library E. Lite. I use the 2017.14 release.

When generating a Chip capacitor 0603 for instance, In Terminal/Settings I have 0.01 set for both Pad Place Round-Off and Pad Size Round-Off.

Generated pads are 0.93x0.82mm which are fine.

But X position is ±0.755 meaning a 0.005 increment instead of being rounded to 0.76 or 0.75?!

Is it a bug or some other setting having higher priority??

Thanks,

]]> Wed, 21 Jun 2017 01:56:34 +0000 https://www.PCBLibraries.com/forum/question-about-pad-place-roundoff_topic2174_post8996.html#8996