The goats' slate

[Jules]

All settings information has to be kept in the Beyond the Manual section for legal purposes. Plenty of information on slate though:

Settings for Engraving on Slate

These worked extremely well for me when creating these coasters: Power 30 Speed 905 LPI 270 Focal Point - Surface BTW: Can get more contrast by oiling the slate before engraving with a light coating of mineral oil.