When working with powder-coated mugs, like the ones in the Polar Camel line from JDS, the key is to keep the mug level when engraving. The laser rotary should be elevated on one side with a level placed on the surface of the mug to ensure that the length is accurately focused. It is also important to properly process and clean the powder coating off the mugs. Either run two passes on the mug with the laser or run one pass and then apply an industrial cleaner/degreaser combined with a magic eraser. This removes the excess residue and cleans the metal engraving.
—Trotec Laser
