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Rounded Corners on Thermal Pad Stencil Apertures

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=3593
Printed Date: 10 Jan 2026 at 12:57pm


Topic: Rounded Corners on Thermal Pad Stencil Apertures
Posted By: felecro
Subject: Rounded Corners on Thermal Pad Stencil Apertures
Date Posted: 09 Jan 2026 at 2:40am
Hi, 

Is there are a reason why stencil opening for under body thermal pads have sharp corners? 

Would it be possible to have an option to make them round?



Replies:
Posted By: Tom H
Date Posted: 09 Jan 2026 at 8:40am
Yes, you can make the Stencil Apertures rounded corners. 

Move the Calculator footprint to FP Designer and you will have full editing of all pad stack layers. 

You can save the Calculator part n FPX for the high-quality 3D STEP Model. 

Use the customized pad stacks in FP Designer as your footprint. 

Make sure that the Calculator Part and the FP Designer part have the same Footprint Name in the FP Library. We also make the Physical Descriptions match. We use the FP Designer autogenerated Physical Description. 

Create the Footprint with the FP Designer 3D STEP first and the high-quality Calculator 3D STEP model second and overwrite the original 3D STEP. 

Watch this video on how to move a footprint from the Calculator to FP Designer: 

https://www.pcblibraries.com/Products/FPX/UserGuide/default.asp?ch=8.6" rel="nofollow - https://www.pcblibraries.com/Products/FPX/UserGuide/default.asp?ch=8.6



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