Using a squat machine for calf muscle development is an effective way to build strength and definition in your lower legs. While the squat machine primarily targets the quads and glutes, you can engage your calves by adjusting your foot positioning. Placing your toes on the edge of the platform and performing calf raises during the squat exercise will isolate the calf muscles. This method ensures controlled movement and adds resistance, leading to improved muscle tone and endurance over time. Integrating this technique into your regular workout routine can lead to balanced and well-defined legs.