Present or future?, Present: Special printers can build the walls of a house by depositing concrete in layers. Some houses have been completed in only a few days., Present or future?, Both: Scientists can print skin-like tissue using living cells. It is mainly used for research and experimental wound treatment, but it is not yet a routine replacement for severely damaged skin., Present or future?, Present: Chocolate can be placed inside a food printer and shaped layer by layer. Chefs can create detailed, personalized decorations and desserts., Present or future?, Future: Scientists can print small heart tissues and models, but they cannot yet print a complete, fully functioning heart that can be routinely transplanted into a patient. The technology remains at an early research stage., Present or future?, Present: Cars with many 3D-printed components have already been produced. However, parts such as the engine, tires and electronics are usually manufactured using other methods., Present or future?, Present: Some companies print customized midsoles and other shoe components. The design can be adapted to a person’s foot shape and movement., Present or future?, Present: 3D-printed bridges already exist. Printers can produce complex concrete or metal sections, which are later assembled or installed.

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