Patent attributes
Implementations relate to a direct drive for a mechanical arm assembly. In some implementations, a mechanical arm assembly includes a base member, a first arm member rotatably coupled to the base member at a first portion of the first arm member, and a second arm member having a first portion rotatably coupled to a second portion of the first arm member. The first arm member is rotatable with respect to the base member about a first axis, and the second arm member is rotatable with respect to the first arm member about a second axis. A first motor coupled to the base member, the first motor including a first drive shaft rotatable about the first axis and coupled to the first arm member. A grip member is coupled to a second portion of the second arm member.