Pendant in 304 steel with color engraving of the island Santorini (Greece)

Clean the pendant on both sides, with isopropyl alcohol, and dry with microfiber.
Paint a thin layer of dark paint or stick a very thin opaque adhesive on the side that will not be engraved.  It is also possible to use a black steel or aluminum plate as a support. For autofocus, the blank is put underneath, then put back on it to engrave. This step is for autofocus.
Open the XCS or XS file, and activate the infrared preheat in the F2 settings.
Identify the three groups of vectors to be engraved, named:

Santorini Colors
Santorini Black
Santorini Outline

By default, the output is disabled for all  groups
Use a rectangular medallion 1 to 1.5 mm thick in polished (and preferably golden) 304 steel, 50 x 30 mm (preferably).
Place the autofocus side under the center spot, close the cover, and autofocus
Flip the pendant over and position it horizontally, about 1 cm below the center spot. Select
all three groups simultaneously to size and place the model on the pendant.
Verify that all three groups have their output disabled
The total burn time is 23 minutes.

Activate the output of the "Santorini Outline" group, and start the engraving
The engraving takes about 1 minute.
Disable the output for this group.
 

Depending on the results, you can increase the number of passes to 2, or start this step before and after the black is burned.