Framed Portrait of a Woman with Floral Hair and Butterflies - PETG Sketch Engraving – Black & Grey Portrait Using IR Laser

ID 115545
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AuthorF2 · 1/8"(3mm) Black PLA
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      I wanted to try something different from the usual color engraving, so I went for a minimal black & grey sketch-style engraving on PETG — and honestly, the results came out super clean and premium.

This technique uses only tone variation (grey to deep black) instead of colors, which makes it look like a hand-drawn pencil sketch on plastic. The key is controlling power and speed balance with the IR laser to get smooth gradients.

You can use your own design file, or convert any image into a sketch-style artwork before engraving.

Perfect for:

Wall art
Custom gifts
Premium product inserts
Portrait engravings

🛠️ Materials & Tools
- xTool F2 (IR Laser)
- PETG Sheet (light/white or semi-transparent works best)
- XCS Software
- Soft cloth + isopropyl alcohol (for cleaning)
    

Instruction

1

Step1: Prepare Your Design

  • Use a black & white sketch-style image (very important)
  • Convert image to:
    • Grayscale
    • High contrast sketch (Photoshop / AI / online tools)
  • Avoid too many mid-tones — keep it clean and defined

💡 Tip:
The cleaner your input image → the sharper your engraving will look.

2

Step2: Import into XCS

  • Import your image into xTool Creative Space (XCS) 
  • Set processing mode to: Jarvis engraving 
  • Adjust: Contrast slightly higher Brightness slightly low
3

Step3

Either use the settings that are available on the XCS file or

👉 These are tested-style baseline settings — adjust based on your PETG(Best option is to create and use a swatch for this rather than guessing):

  • Laser: IR (1064nm)
  • Power: 25–40%
  • Speed: 1200–2000 mm/s
  • DPI: 600–800
  • Passes: 1

💡 For darker blacks:

  • Increase power OR reduce speed slightly

💡 For lighter greys:

  • Reduce power or increase speed
4

Step4: Do a Test Grid (Highly Recommended)

Before final engraving:

  • Run a small test grid with:
    • Different power levels (20–50%)
    • Different speeds

This helps you find the perfect grey-to-black range for your specific PETG.

5

Step5: Engrave

  • Place PETG flat and clean
  • Frame your design in XCS
  • Run engraving

You’ll notice:

  • Light areas → soft grey
  • Dark areas → deep black
  • No color, just smooth tonal transitions
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