InMoov is the world's first life-size, open source robot, and currently also the cheapest ever built. It's software back end is all open source and the parts are constructed from 3D printed plastic

The brainchild of Gael Langavin, InMoov is a concept that began in 2012, and has steadily progressed step-by-step, as you can see here. All the software and design for the parts used for the exoskeleton are freely available on the website and all you need to begin is a 12x12x12cm 3D printer. Slap in an Xbox Kinect for motion capture, and two more cameras for the facial tracking and you're good to go. And that brings you to a shockingly low grand total of US $1,500. Think you have the cash and the chops to take this on? It might just be the best thing you ever build. Check out the InMoov in action below. The InMoov is also on display at the IIT Bombay Tech Fest 2015 from Jan 2 - Jan 4.