1.6.03 — Lightburn

Version 1.6.01 fixed a bug where the "Load default layer settings on new or restart" option didn't always work as intended. However, this fix surprised users who had grown accustomed to the previous (incorrect) behavior. In response, LightBurn 1.6.03 automatically disables this setting upon installation for existing users to prevent unexpected changes to their workflow.

While not a feature-packed major release, 1.6.03 introduces subtle but powerful improvements.

: You can now export and import your entire setup—including device profiles, libraries, and settings—into a single file. This is perfect for moving to a new computer or backing up your workspace.

Because version 1.6.03 represents the most polished and finalized iteration of the 1.6 codebase, it inherits several major productivity tools launched during this development cycle. 1. Import and Export User Bundles

: Added support for GCode machines that operate in negative coordinates, simplifying setup for certain DIY and industrial builds. Common User Troubleshooting LightBurn 1.6.03

In v1.6.03, you can right-click any layer color and select "Save as Quick-Set." This stores speed/power/pass settings for reuse across projects.

Under Device Settings → Galvo , enable "Show Field Borders" to visualize your galvo head’s max scan area before you start drawing.

This improvement targets users doing detailed inlay work or sticker production. In previous versions, removing the internal parts of a shape (creating a "donut" from a circle) sometimes caused issues with corner sharpness. The new algorithm preserves the sharpness of corners, ensuring that inlays fit together more tightly and accurately.

We're excited to announce the latest update to LightBurn, our popular laser cutting and engraving software. Version 1.6.03 is now available for download, bringing with it a range of new features, improvements, and bug fixes. Version 1

LightBurn 1.6.03 is a crucial update for users who rely on the software for laser engraving and cutting. It addresses critical bugs, clarifies behavior around layer defaults, and ensures compatibility with macOS 10.11. While it introduces no major new features, its stability and bug fixes make it a reliable choice for both hobbyists and professionals. For those experiencing issues with newer versions, reverting to 1.6.03 can often resolve problems. As always, users are encouraged to download the latest version from the official website and consult the documentation for detailed instructions.

Always download updates directly from the official LightBurn software website .

LightBurn 1.6.01 corrected a bug where layer settings didn’t revert to defaults unless a user explicitly saved custom defaults. However, fixing this meant that many users found their custom layer settings replaced by the system defaults upon restarting, causing confusion and frustration.

If you are a laser operator, ensuring your software is up to date is the easiest way to improve your workflow efficiency and project quality. While not a feature-packed major release, 1

the features of 1.6.03 with older versions (like 1.4 or 1.5). Provide a step-by-step guide on using the new User Bundles.

In version 1.5, dragging interactive dot-handles immediately warped polygon edge numbers and rectangle radii. Version 1.6.03 locks these control points behind a . This design adjustment prevents accidental scale or geometry transformations when clicking near corners in crowded vector projects. 3. Expanded Workspace and Coordinate Adaptations

| Feature | LightBurn 1.5.x | LightBurn 1.6.03 | |---------|----------------|------------------| | Material Library | Basic, manual entry | Expanded cloud-synced library | | Variable Text tool | Yes | Yes (improved font rendering) | | Fiber galvo support | Limited | Full with real-time preview | | Rotary setup | Manual steps | Wizard-assisted calibration | | Xtool S1/S2 support | Partial (beta) | Full (including limit switches) | | Performance (large jobs) | Good | Excellent |