lol, I’m not sure how or why a 3D printer is required to swap out baggies. Wouldn’t it look and feel like plastic? Use powdered milk or baking soda or whatever those dealers use to dilute it for profit. It says that the fake stuff was sprinkled with the real stuff. Like in the film American Gangsters. “Just enough for the reagent test”. Or season one of HBO’s true detective. Or Brooklyn’s Finest. Off the top of my head.
Maybe he had a LOT of time on his hands to wait on the printer...