For many American families, Christmas isn’t Christmas without a tree ... 3D printing Laser cutters Computer-aided drafting Networked digital command to run multiple trains on the same track ...

For more than a decade, Rob Caves has invited the public to his Altadena backyard to experience an ever-growing model train universe built by him and his fellow hobbyists in the Christmas Tree ...

The duo effectively just 3D printed giant versions of LEGO pieces, with which they then assembled a large Christmas tree. It sounds very straightforward, but scaling an existing LEGO design up by ...

Professor Zhang compares a traditionally 3D-printed Christmas tree, on the left, with one produced using his 3D printing algorithm, right (Photo: Simon Fraser University) View gallery - 3 images ...