This study examines the effective design and §prototype development of a robotic end effector to §assist individuals with door opening disabilities. §A robotic end effector for opening doors will allow §home robots access and freedom to move about the §home and aid those individuals who have difficulty §operating door knobs and handles. For an assistive §in-home robot, manipulating objects around the home §is of high importance. However, such a device must §come at low cost and simplicity in order to make it §accessible to a large number of disabled §individuals. This study examines the development of §a simple end effector for opening doors. The study §culminated in the development of an end effector §that can effectively grasp and manipulate a variety §of door knobs and handles. The results of this §project show that it is possible to develop an §simple, light weight, under-actuated robotic end §effector that is capable of dexterous manipulation §of more than one specific object geometry.