MOBILE ROBOTICS FRAME SYSTEM

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for a mobile robotic frame system. In some implementations, a mobile robot includes a motorized frame that is configured to travel to a location. The mobile robot includes a positioning assembly coupled to the motorized frame, a robotic arm having a manipulator, and sensors coupled to the motorized frame. A control system is configured to process data from the sensors and, based on the data from the sensors, provide control data to (i) move the motorized frame, (ii) adjust one or more movable components of the positioning assembly, and (ii) move the robotic arm relative to the motorized frame. The one or more movable components and the robotic arm are operable to position the manipulator at any position in a three-dimensional work volume with 6 degrees of freedom while the motorized frame remains at the location.