Tracking Robot Guidance

:slightly_frowning_face: I was afraid you would say that. Let me ask you a different question. How, about some sort of GPS system on a way smaller scale. Say I have a square yard and it dimensions are 20 feet by 20 feet and I would like the robot to touch every point within that box, do you have any suggestions on how you would go about doing that. My idea would have been walk in front of the robot and than have it follow me so that I can basically record the steps necessary to hit every point withing this perfect square of a yard.