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KiCAD solder mask margin

Printed From: PCB Libraries Forum
Category: Libraries
Forum Name: KiCad
Forum Description:
URL: https://www.PCBLibraries.com/forum/forum_posts.asp?TID=2505
Printed Date: 31 Oct 2025 at 10:43am


Topic: KiCAD solder mask margin
Posted By: stairhill
Subject: KiCAD solder mask margin
Date Posted: 28 Jun 2019 at 3:28am
Playing with LE Pro to try generating KiCAD footprints, mostly excellent results.  We use copper defined pads so I define solder mask aperture 0.05 bigger than the copper pad, this appears as expected in LE but not in the exported KiCAD footprint.

LE needs to add (solder_mask_margin n.nn) to the pad definition, where n.nn is the margin, when the solder mask setting !=0.00 in LE


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