I just purchased the F1U and I am a wanting to engrave on glass. I have downloaded the settings for clear glass (GL001) and ran them. It did not etch the glass just cleaned the paint off in the sections the laser touched. I ran a speed power test and none of the settings seemed to make a difference. Any advice to a new enthusiast would be helpful.

I am using black tempera paint, and the glass is 1mm thick. I am running Fiber IR at 200 lines per cm and frequency at 30 KHz. The picture isn't very clear but there is not a mark on the glass.