Following the course steps and using an image from Mimi Daly PhotoCrafts I was able to make the following and tested out these new skills with a few more glasses and images.
Step 1: Setting up the glass and rotary tool
The most tricky and 'iterative' part is getting the glass level and rotating 'true' so that the image is centered and straight.
It is worth taking time with this step to ensure the etchcomes out where you want, especially if making multiple copies.
Step 2: Power settings
I tried a few variations below this to create a reduced etch (smokey effect) also but 55/90 is a clean etch.
Step 3: Laser Etching in Progress (Glass candle holder & Golden Gate Image)
This step shows the laser etching in progress.
Now I am looking for new laser Etching / Glass projects.
Thanks to the San Francisco TechSHop team for the great training.