Coat your growler with CerMark and let dry. If you have a fiber laser, you can skip the pre-treating step, as these systems were designed for bare-metal marking. Just be sure to check your fiber laser user manual for recommended settings for your particular metal.
Now it's time to set up the rotary. To insert the rotary, lower your engraving table, remove the vector or engraving table, and power off your machine. Plug in your rotary attachment and then restart the laser. The laser head will relocate to a new home position for the rotary.