A slip joint is a mechanical construction allowing extension and compression in a linear structure. Slip joints can be designed to allow continuous relative motion of two components or it can allow an adjustment from one temporarily fixed position to another. Examples of the latter are tripods, hiking poles, or similar telescoping device. The position is fixed using a clamping mechanism based on a cam, a set screw or similar locking mechanism. Slip joints can also be non-telescoping, such as the joints on some older wooden surveyor's levelling rods. These use a joint that keeps the sections offset from each other but able to be slid together for transport. Examples of continuous slip joints are given below. Slip joints in large structures are used to allow independent motion of large components while enabling them to be joined in some way.
Contributions by Tmariem, Michael Daly, and Gamewizard71.