My S1 laser isn’t focusing properly and engraving thick lines rather than cutting

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Are you using Lightburn 1.7.00 Beta?

Public Beta Release - LightBurn 1.7.00 for xTool S1 and BSL lasers

We have early view of LightBurn 1.7.00, specifically for xTool S1 and BSL Galvo lasers! This adds support for BSL Devices, as well as the xTool S1 improbements. https://drive.google.com/drive/folders/1NlXdR93xibmEnw625vCXf79cPITThy5u This version was updated on April 30th to address MacOS connection issues.