High Quality Content by WIKIPEDIA articles! This is an emerging field and as such there is no agreement on the best term for this class of robot. Snake-arm robots are often used in association with another device. The function of the other device is to introduce the snake-arm into the confined space. Examples of possible introduction axes include mounting a snake-arm on a remote controlled vehicle or an industrial robot or designing a bespoke a linear actuator. In this case the shape of the arm is coordinated with the linear movement of the introduction axis enabling the arm to follow a path into confined spaces.