Originally Posted by
fibonacci
We just picked up a 50W chinese laser and are having some mixed results with engraving. At the moment, I cannot decide if the problem is in the settings, the technique, or the images. I am using NewlyDraw 1.5.
I am taking an image, using photoshop to set the resolution and convert it to monochrome bitmap using random pattern dithering. I am attempting to use 250dpi, as I have heard that much higher than that causes issues on glass due to overlapping fracture patterns.
When I engrave, I do the wet paper trick where I soak a piece of paper, shake it out, lay it flat on the glass with no bubbles, and etch through it. Adding the wet paper made a significant difference, but not as much as I had hoped.
I have not had much success in finding recommended settings for speed/power on glass, and my results are quite varied.
Can anyone chime in with what settings they use?
If possible, it would be awesome if I could get an image that someone has engraved and a photo of the engraving so I have a baseline to compare it to.