I used “Brilliance” Ceramic and Glass Black Marking spray to put a fine coat on a washed glass. I then let it dry for about 5 minutes. I setup the rotary with chuck and I measured the diameter of the glass with digital calipers. I then put that measurement into XCS.  I put in the settings that I needed for glass, rotated the monogram and framed it to the position I wanted on the glass. Once the engraving was done I washed the glass with dish soap and warm water.  The monogram font is from creative fabrica and is named “Wedding Monogram”