Basic maneuvers for an inspection robot for small diameter gas distribution mains

This video shows the design of a mechanical structure of a miniature pipe inspection robot (MPR) capable of moving trough very small pipes (up to 41 mm inner diameter) as well as a wide range of diameters (63 to 125 mm outer diameter). The requirement to negotiate bends, T-joints and steep inclinations pose another set of strict design constraints. In this video the controlled robot is shown in action.