Mechanical assemblies are groups of interconnected parts designed to perform a specific function. These parts can include gears, levers, and fasteners, which work together to create movement or support a load. Mechanical assemblies are commonly found in machines, vehicles, and various devices, ensuring they operate efficiently and reliably. The design and assembly of these components require careful planning and precision. Engineers often use computer-aided design (CAD) software to visualize and test the assembly before physical production. Proper assembly techniques are crucial for maintaining the integrity and performance of the final product, whether it’s a simple bicycle or a complex robotic arm.