The Mindstorms EV3 kit only comes with printed instructions to build a basic robot, the TRACK3R. However, those instructions have something much more important: the size chart.

Some information may no longer be current. At $399, the Lego Mindstorms EV3 is probably the cheapest and easiest customizable robot available Lego is the ultimate tonic to an increasing digital world.

We try building our first Lego Mindstorms EV3 robot, and make some decent headway.

Lego Mindstorms says the robots' modular designs can enable a youngster to build and program a robot in as little as 20 minutes.

It’s Lego’s first major update to their programmable line of robots in six years--a redesign to be more social, connected, and approachable for kids and adults alike.