When engraving on slate using a laser, it’s essential to choose the right settings to achieve optimal results. Laser power, speed, and frequency are crucial factors to consider.

Power: A power setting between 30% and 50% is typically recommended. This range effectively engraves the surface without risking deep penetration that could lead to chipping or cracking.

Speed: The speed setting should range from 300 to 500 mm/s. Slower speeds may result in more pronounced engravings, while faster speeds may yield lighter results. Adjusting the speed based on your desired depth and contrast is advisable.

Frequency: A frequency setting between 500 and 1000 Hz is generally effective for slate. Higher frequencies can produce finer details, whereas lower frequencies might provide a bolder effect but can increase the risk of damaging the material.

Additionally, performing test engravings on scrap pieces of slate can help to fine-tune these settings based on the specific type of slate and the design being used. Consider adjusting the settings as necessary to achieve the desired finish.