The problem with these printers from a purist replicating perspective though is that there are always frame parts that must be made using other materials rather than through the 3D printer.

robotically 3D-printed formwork with fast-hardening concrete. As the first built example using this fabrication process, Future Tree “shows [how] non-standard concrete structures can be ...

While you could argue the cost of PLA/ABS filament is low enough now that printing it would be cheaper than buying, you aren’t going to be able to make a better quadcopter frame on a 3D printer ...

According to Arevo, its bike frame is the first to be 3D printed using carbon fiber. The company uses 3D printer technology, paired with a custom-built robotic arm and web-based software ...

Using an input image, the Tree-D Fusion creates a 3D tree model that can be used to simulate various stages of development. WEST LAFAYETTE, Ind. — Trees compete for space as they grow.