PCB Libraries Forum : Molded Body 3D STEP Model Issue

PCB Libraries Forum : Molded Body 3D STEP Model Issue https://www.PCBLibraries.com/forum/ Sun, 05 Apr 2026 20:16:30 +0000 Wed, 27 Sep 2023 11:04:02 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.07 360 https://www.PCBLibraries.com/forum/RSS_post_feed.asp?TID=3306 <![CDATA[PCB Libraries Forum]]> https://www.PCBLibraries.com/forum/forum_images/PCBLForumLogo.gif https://www.PCBLibraries.com/forum/ <![CDATA[Molded Body 3D STEP Model Issue : Note: Footprint Expert 3D STEP...]]> https://www.PCBLibraries.com/forum/molded-body-3d-step-model-issue_topic3306_post13267.html#13267 Author: Tom H
Subject: 3306
Posted: 27 Sep 2023 at 11:04am

Note: Footprint Expert 3D STEP models are not 100% compatible with CREO (MCAD software).

]]> Wed, 27 Sep 2023 11:04:02 +0000 https://www.PCBLibraries.com/forum/molded-body-3d-step-model-issue_topic3306_post13267.html#13267 <![CDATA[Molded Body 3D STEP Model Issue : Added an error provider to flag...]]> https://www.PCBLibraries.com/forum/molded-body-3d-step-model-issue_topic3306_post13266.html#13266 Author: Jeff.M
Subject: 3306
Posted: 27 Sep 2023 at 10:05am

Added an error provider to flag any D1 value is greater than D minus twice the minimum terminal thickness of 0.3mm (D - D1 must be greater than 0.60 mm).]]> Wed, 27 Sep 2023 10:05:39 +0000 https://www.PCBLibraries.com/forum/molded-body-3d-step-model-issue_topic3306_post13266.html#13266 <![CDATA[Molded Body 3D STEP Model Issue : Understood. Request you consider...]]> https://www.PCBLibraries.com/forum/molded-body-3d-step-model-issue_topic3306_post13218.html#13218 Author: rrix
Subject: 3306
Posted: 17 Aug 2023 at 11:59am

Understood. Request you consider this as a possible enhancement for the future. I know the manufacturer's don't always follow the standards, but it's what we have to deal with (and they don't always have a STEP file and then we would have to generate one manually). Also, would it be possible to provide some indication that the 0.8mm requirement was being violated? That way I would know there's an issue right away. I do a quick visual check, but don't normally zoom in to check all the geometry of the STEP file. I only found this since my MCAD team was complaining about it.

Thanks for the reply. I'll try to keep this in mind when creating a molded body part.

]]> Thu, 17 Aug 2023 11:59:16 +0000 https://www.PCBLibraries.com/forum/molded-body-3d-step-model-issue_topic3306_post13218.html#13218 <![CDATA[Molded Body 3D STEP Model Issue : The master 3D STEP model was designed...]]> https://www.PCBLibraries.com/forum/molded-body-3d-step-model-issue_topic3306_post13217.html#13217 Author: Tom H
Subject: 3306
Posted: 17 Aug 2023 at 11:26am

The master 3D STEP model was designed for the JEDEC DO-214 package.

Major Note: The "D" dimension must be at least (minimum) 0.80 mm larger than the "D1" dimension.

This allows the 0.20 mm thick terminal lead to exit the package and have a bend radius.

There are some Molded Body packages where the terminal lead is against the package body. This is a non-standard package and it's not recognized by JEDEC, EIA or IPC.

You need to use the FP Designer module to create these non-standard footprints using the mfr. recommended pattern. And get the 3D STEP model from the component mfr.

]]> Thu, 17 Aug 2023 11:26:46 +0000 https://www.PCBLibraries.com/forum/molded-body-3d-step-model-issue_topic3306_post13217.html#13217 <![CDATA[Molded Body 3D STEP Model Issue : When I look at a STEP file for...]]> https://www.PCBLibraries.com/forum/molded-body-3d-step-model-issue_topic3306_post13216.html#13216 Author: rrix
Subject: 3306
Posted: 17 Aug 2023 at 11:08am

When I look at a STEP file for a molded body exported from Footprint Expert, I'm seeing issues with both pins on the part.

It looks like the top part of the pins can't properly solidify.

I'm seeing this anomaly in OrCAD and E-Drawings.

If I export a STEP file with just this one part on the board in OrCAD, it fails when trying to import into CREO (MCAD software).

]]> Thu, 17 Aug 2023 11:08:00 +0000 https://www.PCBLibraries.com/forum/molded-body-3d-step-model-issue_topic3306_post13216.html#13216