Using Luban with my SM2 A350 , I have some questions about how grayscale engraving works (in my case on some thin 1/4" cedar):
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I assume one should not select “fixed power” for the toolpath properties of a grayscale image? I’m thinking that for grayscale, Luban will auto adjust the laser power for any given dot to match the darkness from the image? Or, does Luban use a constant laser power and instead vary the density (number) of dots to accomplish grayscale?
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If Luban implements grayscale by using varying laser power (in the g-code), how does one tweak Luban for the particular material being engraved? e.g. oak wood require much more laser power than a soft wood like cedar. The only thing I’ve seen when editing a grayscale image toolpath is “fixed power” setting. So that makes me wonder if maybe we are supposed to use a fixed power setting - and set it lower for software woods, higher for harder woods? I guess “dwell time” would be another way to tweak the laser for different materials…
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I did a quick look in the User Manual, but didn’t see anything that delved into these topics. Maybe it is documented somewhere?
TIA,
Mike