// Operations · key I
Image engrave (laser)
Burns a photo or picture row by row: dithered dots, grayscale power or black and white.
Use it for: Photos and artwork on wood, slate, leather, card.
Tool: A laser (GRBL with M4 or M3, or Marlin inline).
Settings
| Setting | What it does | Default |
|---|---|---|
| Mode | Jarvis or Floyd-Steinberg dithering (dots), grayscale (power per pixel), threshold (black and white). | Jarvis |
| Line interval | Distance between rows and dots; about the beam width. | 0.1 mm |
| Power for black, for the lightest | Grayscale spreads the greys between them. | 60 %, 0 % |
| Invert, back and forth, overscan | Burn the light parts; rows both ways; run-on at zero power. | Off, on, 2 mm |
Every operation also has: Tool, Include in G-code, Own safe heights, Start depth, Coolant — see Heights. Hover the (i) next to a setting in the app for the same explanations.
Tips
- Dithering suits wood and most diode lasers; grayscale suits materials that darken evenly.
- The picture fills the selected rectangle: draw it in the proportions of the picture.