Want to build up a desktop CNC machine without breaking your pocketbook? [James Coleman], [Nadya Peek], and [Ilan Moyer] of MIT Media Labs have cooked up a modular cardboard CNC that gives you ...

Help your child make a simple pinball machine from just a cardboard box and some ice lolly sticks ... If your teen wants to shake up their free time, here are seven skills they can try.