Many of the 3D prints we feature are static decorations or props mainly used for cosplay, so it’s nice to find a print you can play with – these pull back cars. Thanks to a gear system and an elastic ...

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 ...

We are accustomed to engineers and designers developing production cars and trucks from prototype models, but the team at Mattel’s Hot Wheels brand has the challenge of going the other direction: from ...