Science Fiction or Science Prediction? Many posit that Star Trek played a seminal role in giving us the flip phone and numerous other modern tech developments. It appears that another example of Star Trek-nology may be coming to fruition. While 3D printers do not replicate objects on the molecular level they do create impressively congruent models. These are not simply solid mockups either, if the object uses simple mechanics the prototype will actually function, like the adjustable wrench featured in the video. Pretty amazing.