This is amazing! 3D engraves are one of my favorite underutilized features.
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I have discovered that increasing the volume of air moving through has the smoke hanging around a lot less and thus causes less build up than without the help. Different species have different amounts of course, with oak being bad and walnut or maple a lot less.
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Those are very cool. Inspiring!
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You call these tests - I call these great examples of 3D engraving!
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This might tickle your fancy then lol. engraved both sides and made a quick cut file in inkscape to knock the flashing off between the 2 halves.
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tutorial me pleeeeease. I’ve never had success with this.
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Is there a tutorial on using grey scale and/or variable power?
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The 3D setting is kind of plug and play once you have the art right (like everything else 
!)
Here’s a great write-up on how to conceptualize the art: Tutorial: 3D Engraving Depth Map Concept, using 2D Design Software
and this post: Anyone know anything about 3d engraving files? links to a Photoshop how-to, and 2 posts down from that links to another site with a guide…
Good luck!
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Just to give you a visual, here’s a rabbit hole of greyscale images that work with 3D engraving. 
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Awesome link, thank you.
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Thank you so much for sharing. Really nice work.
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I love you and hate you a little bit right now - there’s dozens of those I want to try!
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Aww, love and hate you too man. I have dozens of “I’m bored and want to engrave something cool” tiles laying around, now you will too. You’re welcome. 
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Neat! Yes, I’ve used electron microscope images before (my draftboard ukulele’s label: it was a flea) and they really lend themselves to laser engraving.
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Beautiful work!! Did you use any masking paper?
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No didnt use any masking paper as i find you tend to lose some of the details on the lower end
Really amazing!!
Would you mind sharing your settings?
For the settings i used the engrave test i posted on free designes to find the max depth i wanted for the engrave
but most were speed 1000/power full/pattern density lrv at 0 urv at 100/ 450 lpi/ and the convert to dots setting
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That’s a great link. Thanks.
I am printing one now and it is coming out great. I just have to figure out how to clean up the charcoal darkness of the wood.
Regards.
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