Photo settings I'm playing with:
Photoshop
Adjust until photo looks best
(edited to add: convert to grayscale and invert)
Driver
Speed = 80
Power = 15 (Material sensitive to small changes)
LPI = 500 (-5), PPI=1,000 (versa default)
Mode = 3D
Laser
Lens = 1.5"
ULS Versa 40W (60ips rated speed)
I liked 3D mode the most. The drivers halftone setting also works well. The drivers error diffusion setting works if the grayscale histogram is adjusted to the dark half. (After inverting for output, scale to the range 127-255)
I was testing these settings on the 2"x3.5" pieces available from Laserbits. On the white (engraved) areas I'm getting uniform bands appearing at a 45* angle. It doesn't matter if I'm using 3D mode, halftone, or error diffusion. Ken Devory Jr.
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