printed it with this very 3mf without glue or any other adhesion means on the textured OEM build plate of the centauri carbon in PETG (OWL Filament – yes it is a shotty filament would not use again; if you choose a different filament be advised to change the temperatures)

only slight supports to remove at the top tap (required to ensure that when stacked the individual boxes do not shift around that much)

printed them without tops or bottom for a wireframe like look and to economize on printing time and material

needed them as a transportation aid for wall outlets and light switch rockers. the lowest item will be held in by the single prong in the bottom of each part all subsequent items rest on top of the one below