How to CNC Engrave on Granite, Marble, or Any Stone (with a $5 …
Stone hardness: Choose a bit that is harder than the stone.Diamond or tungsten carbide bits are best. Cooling system: Use water to cool down the engraving area and prevent overheating and cracking.; Machine rigidity: Your CNC machine should be strong and stable enough to handle the force and resistance of stone.; Feeds and speeds: Adjust your feed rate …
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