Technical parameters for engraving glass:
Material: Willi cup 0.5 liters
Engraving colour: black
Performance: 60%
Speed: 30%
Frequency: 25KHz
Passes: 1
Focus shift: 0
Air cooling: 0
Mode: Grid
Laser: CO2 40W
Resolution: 600DPI
Hints:
Coat the glass with a wet kitchen towel before lasering, otherwise the glass will be too sharp-edged. The wet cloth must be completely smooth, any wrinkles, bubbles or gaps can be seen in the laser image afterwards!