Output–
Physical size–
Line interval–
Burn coverage–
Photo check
- …Load a photo to check it.
Ask AI sends a small copy of the photo and your settings to Claude for advice. Everything else stays on your device.
Laser power & speed
Power–
Speed–
Line interval–
Est. burn time–
Calibrate this material with a test grid
- In LightBurn open Laser Tools → Material Test and enter:
- Burn it on a scrap of the same material, same focus.
- Click the square below that looks best. The tool saves it for this material and recalculates every setting from it.
Using the file in LightBurn or LaserGRBL
- Import the PNG. Its DPI is stored in the file, so it arrives at the size you set here. Check the width before burning.
- The file is already dithered. In LightBurn set Image Mode to Pass-Through (or Threshold); in LaserGRBL choose Line to line, 1-bit mode. Dithering it a second time ruins the detail.
- Set the scan line interval to match the file (shown above), e.g. 0.10 mm at 254 DPI.
- Burn a small test patch on the same board first. Adjust power and speed until the mid-greys look right, then come back and tweak Midtones if needed.
- If you picked "None, greyscale", let your laser software do the dithering instead.
- Sand to 220 grit before, wipe with a damp cloth after, and seal with a clear matte finish.
Using the SVG or DXF
- Both files are drawn in millimetres at the size you set. Check the width after importing.
- SVG keeps the filled shapes. In LightBurn set the layer to Fill for engraving, or Line for outlines you want to score or cut.
- Layered shades uses one color per layer (black = darkest, then blue, red, green). LightBurn puts each color on its own layer. Layers stack, so the darkest areas get burned by every layer. Start each layer at low power and add passes until it looks right.
- DXF holds closed outlines only (DXF has no fills), with layers named ENGRAVE, OUTLINE or SHADE_1 to SHADE_4. Set them to Fill in your software if you want them engraved.
- If the shape count is very high, raise Remove specks or Smoothness. Fewer nodes means faster, cleaner burns.