Short video showing my process to laser engrave / mark a whiskey glass using the Xtool D1 and RA2 chuck rotary. If you have any tips or thoughts, please leave a comment. Also, if you are in the market for the spray I used, Dry Moly Lube, an Amazon link is below.

Xtool D1 10 Watt - https://amzn.to/3UdIUOk
Dry Moly Lube - https://amzn.to/3irSPTi