The line follower challenge requires that the robot follow a white, 19mm wide line on a black background. The track formed by the line forms a complete loop which may have crossing points. The length is not specified before the event but will be less than 60m in total.

Turns are formed as fixed-radius arcs of unspecified length. The minimum radius will be 100mm.

At each change in curvature a marker will be placed to one side of the line.

The robot must start and finish within a straight section that is designated by markers on the opposite side to the turn markers.

Rules can be found here: https://ukmars.org/index.php/UK_Line_Follower_Rules