From mathematical cookie cutters to wormholes, we pick favourite 3D-printable objects. Also, download an exclusive New Scientist Christmas tree ornament – a ...

3D printing is the process of making three-dimensional objects by laying thin layers of material on top of one another. Each layer is so thin that the height is barely detectable by the human eye. In ...

3D printing creates solid objects from the additive process of layering plastics, metal, wood, synthetic fibers, and more. You can 3D-print your own designs using a ...