Abstract: Features relating to a laser etching and/or tag writing machine are provided. The machine may include a tray assembly including a tray and a nest. The tray may hold an array of vaporizer cartridges. The tray may allow for a laser-etching operation to be performed by the machine on at least one or two sides of the vaporizer cartridges held by the tray. The tray may allow for the array of vaporizer cartridges to be rotated at the same time between laser etching operations. The tray may additionally and/or alternatively allow for the machine, such as via an antenna, to write data to an NFC tag of a corresponding vaporizer cartridge before, during, and/or after each laser etching operation.