I have been tinkering with this Chinese made laser engraver for 3 weeks now. Although I would say that it has limited capabilities, it fits my needs. One problem that I have been trying to fix is the ghost image it creates on the product. I was able to line up the image along the x-axis but there is still the secondary image directly below the original image and parallel to the Y-axis stays, no matter how I tweak the settings. If I will use a crosshair image, I could line up the vertical line but uniting the horizontal lines drives me crazy.
( I engraved a bitmap image on glass for visual accuracy)