Abstract: A nutating cam shaft speed reducer includes multiple cams and rolling or sliding surfaces to create a high reduction ratio, high torque speed reducer in a small space. The nutating cam speed reducer may be made predominantly from plastic. The nutating cam speed reducer may be made to work in concert with a motor, wherein the motor is also made using a high percentage of plastic. The motor may feature an integrated control printed circuit board. The nutating cam speed reducer and motor may be integrated into a robot arm, and the robot arm may be centrally cooled using a technique wherein airflow is routed through an axial center of the robot arm and back out along a perimeter of the robot arm. The airflow cools power electronics, the nutating cam speed reducer, and a motor stator such that higher power levels are possible than without active cooling.

Abstract: Motors disclosed herein may include a stator comprising electrical windings thereon. A stator housing at least partially houses the stator. A rotor assembly is rotatingly coupled with the stator housing and includes a rotor, which may be formed of a polymer, and a plurality of magnets coupled with the rotor. In implementations the magnets are coupled with the rotor using a friction fit or one or more snap locks, and/or without the use of glue. In implementations the rotor assembly excludes a back-iron. In implementations the stator housing is formed of a polymer. Methods of formation of a rotor are disclosed, including methods of inserting one or more magnets into slots within the rotor, including at varying angles of rotation. In implementations the magnets are organized into a Halbach array.

Abstract: A mobile video teleconferencing system providing a means for customizing the access and control granted to each remote user of the system via a configurable database of access and control settings.

Abstract: A mobile video teleconferencing system comprising an audio-visual assembly atop a vertical support structure mounted to a powered, wheeled base. The device is controlled through a wireless Internet connection by a remote user, and is light enough to be carried with one hand.