I’m going to start playing with this in the next couple of days. I’ll let you know what I find out.
My first thought is that trying to do grayscale seems like it would be problematic on all but the smoothest of materials because of the way it pulses and uses dots to create the image. I think vector or b&w will be necessary. That image looks like it might be grayscale, but I wouldn’t really be shocked if it wasn’t done on an SM either.
Whether it can or not I think starting with b&w is the way to go.
I think getting the balance of speed and power right is the key. Wood is fairly forgiving and generally you can get similar results going fast at high power and slow at low power.
The way I’ll probably approach this is to take a 15mm square sample of my image and repeat it in Luban 5 times. On most items I’m trying to run as fast as I can so I start with power as high as I can and test speed. On this I’m more interested in trying to figure out power so I’ll start at 400mm/m and set the power on each sample from 10 to 50%. See what happens with that and go from there.
-S