How to prepare artwork for LightBurn and avoid a noisy trace
LightBurn can work with several file types, but output quality depends heavily on the input artwork. A design with a busy background, broken lines or poor contrast can turn into hundreds of tiny shapes that are difficult to engrave.
1. Clean the artwork before tracing
Before using Trace Image, remove visual noise that is not part of the design. Isolated dots, background texture and unnecessary shadows can become tiny vectors. A clearer visual hierarchy usually produces more useful shapes.
2. Lines need to survive at the real size
A line that looks perfect while zoomed in may disappear when the artwork is reduced to 40 or 60 mm. Always check the final width and height. Important contours need enough weight to remain readable at engraving size.
3. Adjust tracing without destroying faces or logos
There is no single threshold that works for every image. Watch the trace preview and adjust gradually. If the setting is too aggressive, eyes, mouths and inner lines can close up; if it is too weak, gaps and loose details appear.
4. Separate artwork preparation from machine settings
Artwork controls shape, contrast and readability. Speed, power, line interval and focus control how the machine interacts with the material. Trying to fix bad artwork only with more power usually creates new problems. Clean the file first, then tune the engraving test.
Before you start the job
- Check for loose shapes after tracing.
- Verify the physical size in millimeters.
- Use framing to confirm position.
- Run a material test grid when changing materials.
- Keep a copy before aggressive edits.
Frequently asked questions
Is SVG always better than PNG in LightBurn?
No. SVG is excellent when the artwork is already clean vector geometry. A photo or stippled design can work better as raster artwork depending on the effect and machine. The format should match the engraving method.
Why does tracing create thousands of points?
Usually because texture, compression, shadows or noise are being interpreted as real detail. Simplifying the image before tracing often reduces this dramatically.