When designing for laser engraving on slate, keep the following tips in mind:

• Contrast: Choose designs with high contrast. Light-colored slate works best with dark engravings, so opt for bold, dark fonts and graphics to ensure visibility.
• Simplicity: Use simple designs and avoid intricate details. Fine lines may not show up well on slate, so larger, bolder elements work better.
• Size: Ensure your text and images are appropriately sized. Consider the scale of the slate piece; larger engravings may be more effective and legible.
• Font Selection: Select clear, sans-serif fonts for easy readability. Avoid overly decorative fonts that may become illegible when engraved.
• Test Engraving: If possible, do a test engraving on a scrap piece of slate to see how your design translates. Adjust accordingly based on the results.
• Spacing: Maintain adequate spacing between letters and design elements to prevent them from blending together after engraving.

Following these tips will help you create stunning and effective engravings on slate that stand the test of time.