Guides
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How to remove duplicate lines from a DXF file (without AutoCAD)
Duplicate and overlapping lines inflate a DXF file and make lasers cut twice. How to spot them, where they come from, why desktop CAD tools miss the near-duplicates — and how to remove them for good in your browser, no CAD licence needed.
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Why does my laser cut the same line twice?
Burnt edges, doubled cutting time, filled shapes rendering as outlines in LightBurn: your DXF probably contains duplicate lines. Where they come from and how to remove them.