A part-carrying apparatus includes a base portion. A shaft extends from the base portion. At least two mechanically driven arms are coupled to the shaft. Each arm has a first end coupled to the shaft and an opposite second end distal from the shaft. A part is coupled to the shaft. The part is configured to capture information about an environment around the part-carrying apparatus. A locking nut is coupled to the shaft. The locking nut comprises at least two positions. An unlocked position includes wherein the second end of each respective arm of the at least two mechanically driven arms is configured to extend away from the base portion when the locking nut is in the unlocked position. A locked position includes wherein the second end of each respective arm of the at least two mechanically driven arms is configured to extend towards the base portion when the locking nut is in the locked position.