Ah, look at that! Not perfect, but getting there… This is 2W IR laser true greyscale with Lightburn:
True greyscale is so much better than dithering! Here’s the same image done with dithering (you may need to go to 100% view to really appreciate the difference):
Here’s the source image:
The “why” you can read here: Laser Inline Power processing slow?
And yes, laser processing is slow. The image shown here was done with base speed 6000 mm/min, which is basically never achieved. I’ll do a run tomorrow with 600 mm/min, which I expect to yield better results - the algorithm for adaptive power struggles in places as you can see. I assume going slower will iron that out, and in effect it will make no difference as to how long the image will take to burn.