Remove Origin Marker from Courtyard Layers
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=1666
Printed Date: 18 Nov 2024 at 6:45pm
Topic: Remove Origin Marker from Courtyard Layers
Posted By: DaveCowl
Subject: Remove Origin Marker from Courtyard Layers
Date Posted: 06 May 2015 at 4:23pm
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Hi there, I have always been a little puzzled by the inclusion of the origin marker on the Courtyard layer(s) and in general don't want this in my land patterns. It seems that the only way to not include this feature is to go to a USER Surface Mount Density level. In general I prefer to simply use the Nominal level and am concerned that if I switch to USER in order to disable this feature, other setting may change to undesirable values. Do I have to switch to USER or is there another way to remove this feature (like hacking the default setting)? What settings are default values for the USER selected setting based on? What is the value in having the origin marker included? (I am concerned that since the courtyard defines the extent of the part, having other details in this layer may confuse Allegro). Feel free to share other thoughts on this feature as well... I am poised to generate my new library and don't want to have to generate everything multiple times to get this right... Thanks! Dave. |
Replies:
Posted By: DaveCowl
Date Posted: 06 May 2015 at 4:49pm
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It looks like selecting the USER profile works well enough ... still curious though as to the benefits or down sides of including the origin marker in the land pattern, with a specific leaning towards Allegro... Cheers! Dave.
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Posted By: Tom H
Date Posted: 06 May 2015 at 5:13pm
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The Courtyard and Origin Marker are on the same layer because they do not get post processed to Gerber, Assembly or Drill Drawing. Their primary use is for part placement. I would not use "User Preferences" as they are going away in a future release. Use "Default Preferences". You can turn on/off the Centroid Marker or Courtyard in Default Preferences. The "Setup Preferences" button will become just a button that opens the Default Preferences. In the new Default Preferences, the Library Expert user will have unlimited control over every aspect of the Footprint. Example: In the future, the user will have complete control over the resulting pad size for every pin pitch. We call it Proportional SMD pad stacks. Well still support the IPC-7351 3-Tier library system but we strongly believe that everyone will migrate over to Proportional SMD pad stacks. This will follow J-STD-001 and IPC-610 standards for solder joint creation and acceptance. Gullwing Lead Shape (SOP & QFP) Pin Pitch Toe Heel Side Courtyard 1.27 mm 0.30 0.35 0.05 0.25 1.00 mm 0.25 0.30 0.05 0.25 0.95 mm 0.25 0.30 0.05 0.25 0.08 mm 0.25 0.30 0.04 0.25 0.65 mm 0.20 0.25 0.03 0.25 0.50 mm 0.20 0.25 0.02 0.25 0.40 mm 0.15 0.20 0.01 0.25 0.35 mm 0.10 0.20 0.00 0.25 ------------- Stay connected - follow us! https://twitter.com/PCBLibraries" rel="nofollow - X - http://www.linkedin.com/company/pcb-libraries-inc-/" rel="nofollow - LinkedIn |
Posted By: Mattylad
Date Posted: 15 May 2015 at 1:12pm
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I commented on this a long time ago. I see it serving absolutly no purpose for me, if the origin is in the center of a component then I don't need to see that exact position on my placement layer. To me it's just extra stuff that's not needed. I found that simply editing the preference files (carefully) to change
to
Made it a permanent change for me. Whats going to happen in the future and the pad stacks have no bearing on the current status of it. |
IncludeCentroidCrosshair="True"Posted By: Tom H
Date Posted: 15 May 2015 at 1:24pm
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You can toggle almost every Drafting Item on/off. V2015.12 is the last release this year with new features. We will fix bugs in V2015 for the remainder of the year if there are any. Our main focus is on the rewrite of V2016. We do have a surprise in June that will shock the global electronics industry and affect everyone building CAD library parts. We've been waiting for this event for the past 4 years and it's finally going to happen.  ------------- Stay connected - follow us! https://twitter.com/PCBLibraries" rel="nofollow - X - http://www.linkedin.com/company/pcb-libraries-inc-/" rel="nofollow - LinkedIn |
Posted By: Matthew Lamkin
Date Posted: 22 Sep 2015 at 3:37am
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Did it happen Tom? The event that was supposed to shock? What was it because I'm not shocked enough to remember it  |
Posted By: Tom H
Date Posted: 22 Sep 2015 at 6:39am
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1 million parts on POD for free download to all Library Expert Pro users. And a Free POD Builder software that has every Pro feature turned on. Purchase parts for $1 as needed. If you can't afford Library Expert Pro, now you get LE Pro for free with 21 CAD interfaces and 3D STEP. We hope that $1 per part is less expensive than manually building parts. ------------- Stay connected - follow us! https://twitter.com/PCBLibraries" rel="nofollow - X - http://www.linkedin.com/company/pcb-libraries-inc-/" rel="nofollow - LinkedIn |