Lego’s new Mindstorms EV3 kit lets users build 17 different robots ... Amid a spaghetti of wires and a blaze of red, green, blue, yellow and purple blocks is an amazing array of robot prototypes ...

The heart of the build is a Lego Mindstorms EV3 controller. It’s acts as the “body” of the guitar, and is fitted with a Lego “fretboard” of sorts. A slide is moved up and down the ...