Meet the Polygon Delta Robotic 3D Printer: an awesome machine with robotic arms to print objects layer by layer as you watch. It has a large build volume of 10 inches in diameter. It has magnetic joints and a rigid frame. You get a built-in airflow system and an E3D Lite6 Hotend.
This 3D printer kit is currently available on Kickstarter. It is expected to ship in July.