Robot models provide a powerful tool for the study of animal locomotion, but it is difficult to capture the accuracy needed for a good analog of animal neuromechanical testing. To test synthetic nervous system controllers that model parts of cat nervous systems thought to be responsible for locomotion, we develop a novel robotic cat hindlimb. This work builds on the 1:1.75 scale robotic cat hindlimb proposed by Budzichowski et al. in 2024, redesigning the system to achieve a 1:1 scale while reducing the inertia of the limb. To achieve this, we develop a cable drive system to actuate the ankle joint and discuss some of the considerations with this design and future improvements. Initial validation and testing are presented.