How A 3D Printing Welding Robot Works Here's an explanation.

This amazing robot is 3D printing in steel. Thanks to Autodesk we get a chance to see how the most complex machines in the game are currently working to create the future, using the most advanced robotics technology available today. It's humbling stuff--we are far from the sci-fi reality of Westworld or other fantasies where robots are there to do our bidding. These machines can't even tell that a human is nearby. But we are teaching these machines to understand the world around them and bend it to our wishes--an incredible achievement.