after lots of tried and errors this was my best quality of engraving on glass
for my first step i found some black acrylic paint and painted the side of the glass that i wanted to engrave on. i would recommend to use a thick layer and wait for it to dry.
The engraving will not work if its not fully dry
for this step i went to creative space and selected one of their images. you can bring any svg or any text file for this stage.
at this point i have selected the engrave. the setting i used 70 power 30 speed and 120 lines was the best of all my tests.
after the engraving is done use hot water and wipes or paper towels to remove all the paint.
Thats it your done.