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Home Brew Forums > Home Brewing Beer > DIY Projects > Other > laser marking bottle caps
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Old 04-22-2008, 06:52 PM   #11
IrregularPulse
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Try bringing the laser up a bit out of focus. This is how you can achieve a nice dark mark without burning into the material. it is a smooth to the touch mark. High power slow mark speed. Co2's are best for organix materials and aren't the best for metals but the 50W should have enough power. They work great for thing's like ceramic, rubber, wood, stone...

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Old 04-22-2008, 07:12 PM   #12
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Quote:
Originally Posted by IrregularPulse
Try bringing the laser up a bit out of focus. This is how you can achieve a nice dark mark without burning into the material. it is a smooth to the touch mark. High power slow mark speed. Co2's are best for organix materials and aren't the best for metals but the 50W should have enough power. They work great for thing's like ceramic, rubber, wood, stone...
how far out of focus do you recommend? for the versa laser, you type in the thickness of the material. I can then add a certain amount for "out of focus". We usually use this laser for cutting paper and wood, so Yeah, it's not the best for metal, but works if there is a coating on the metal like anodized.
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Old 04-22-2008, 07:37 PM   #13
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It depends on the lense of the laser. Our systems it is usually a couple millimeters out of focus. But we make marking lasers not cutting lasers (yet). Could be different. Find out what the wave length of the beam is to see if it's comparable to what we do.

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