Buying a 3D printer is exciting, but you'll need projects and models to make it all work. These free sites offer a huge range ...

Adding a third dimension to sketches with a 3D printing pen can bring a whole new layer of fun to doodling. But as we discovered for ourselves last year, it's not as easy as company reps make it look.

Consumer-grade 3D printers exploded onto the scene a few years ago. It was so cool that for under $1,000, anyone could buy a device and watch their designs materialize right before their eyes. The ...

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