UV laser glass engraving tips (cannot get it to work)

Hello all,

I love experimenting with machines and after getting a lot of hours on my CO2 I recently purchased a UV laser (5W).

Everything seems to work out for me (alu, steel, wood, plastic) but glass just does not want to work out for me. I first went the material test route and tried to get it done that way. None of the frequencies seem to work. I tried finding information on settings for a UV laser, but also no success. I set Q-pulse to 1 and frequency to random frequencies and tried getting it done that way, that also did not work. Tried other drinking glasses, nope.

Glass just doesn’t want to engrave for me

Since I am probably doing something wrong or missing information, I thought I might ask you guys if you have any input before I pull my hair out

Any feedback and input is greatly appreciated