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80 watt laser engraver: Difference between revisions
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6mm speed ? power ? | 6mm speed ? power ? | ||
Importance of focusing/lens choice | |||
http://www.thefabricator.com/article/lasercutting/the-importance-of-focal-positions-in-laser-cutting | |||
Focus on the surface, under the surface, or on the bottom surface. | |||