I am trying to make new tutorial videos and tips again. This on is showing how to vectorize your images to be engraved, I figured it might help some newer users out:
Hopefully it helps someone out.
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It doesn’t load for me. However, jpgs especially are usually far more problematic then that design looks. 
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I’d personally go in the opposite direction. I always rasterize vectors before engraving. IMO once a workflow involves tracing, something has potentially gone wrong. (The main exception is “this crappy bitmap is all I have and I need to scale it up”)
Also, does that guy have six fingers?
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Yeah depends on what you want to do with it. This would be the only way to score the design if you wanted it scored or easily cut if wanting to cut around all the areas if you wanted it cut after. Looks like he has just five fingers
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In general I find that a B&W sharp image made into a Jpg will have many near white places and many near black. So the first thing needed is to increase the contrast using Gimp and then if it needs to be bigger. scale it at that point. This will slightly blur the jaggy bits and smooth the lines of a mask. I turn the mask into a path and can do minor things like restoring thin areas and then exporting a png and an svg.
Occasionally where the JPG is really messed up there will be blurry bits far from the image and Gimp will find that and reduce the image to what was expected.
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