Creating metal sculptures with movable parts is a fascinating blend of artistry and engineering. One of the most common techniques is welding, where joints are carefully crafted to allow movement while maintaining structural integrity. Another popular method involves using hinges or pivots, which enable sections of the sculpture to rotate or swing freely. For more intricate designs, artists often employ ball-and-socket joints, providing a wider range of motion. Some sculptors incorporate springs or tension wires to create dynamic, kinetic effects. Additionally, techniques like brazing and soldering are used for smaller, delicate movable components. Each method requires precision and a deep understanding of metalworking to ensure durability and fluid motion in the final piece.