Discover how to build a miniature car structure using a 3D pen, cardboard, and metal rods in this creative DIY project. Follow step-by-step as we design the chassis, craft intricate wheels from 3D ...

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.