kunckle-joint

A knuckle joint can be modeled by designing the fork, eye, and pin as separate parts and then assembling them. The fork is usually created with two parallel arms, while the eye is a single lug with a hole for the pin. Once all parts are ready, they are brought together in an assembly, and mates are applied to fix the pin inside the holes, allowing the joint to rotate freely. This helps demonstrate how knuckle joints are used in mechanical systems to connect two rods under tensile load while permitting angular movement.