An end of arm tool subassembly includes three identical linear drive mechanisms connected directly together to provide three directions of movement. Each linear drive mechanism includes a base defined by a longitudinal axis and a slide movably coupled to the base. The base has at least one mounting surface disposed parallel to the longitudinal axis and an end mounting surface disposed perpendicular to the longitudinal axis. The slide traverses in a direction parallel to the longitudinal axis and has a slide mounting surface thereon. One of the identical linear drive mechanisms is directly attached to the end mounting surface of the base of another linear drive mechanism to provide two of the three directions of movement.