Why Robot Arms Cant Wipe a Whiteboard Clean

Lucas and Luna dive into a deceptively hard robotics problem: cleaning a whiteboard. They break down why wiping a surface is harder than gripping an object, exploring contact force control, sensor noise, and the subtle physics of smearing. The episode centers on a 2025 ICRA paper from CMU that mapped the forces required to erase dry-erase ink without leaving ghost marks — and why commercial robot arms still can't handle the task. Listeners learn about impedance control, the difference between stiff and compliant wiping, and why a $50,000 robot arm struggles with a task a child can do. If the episode is useful, listener support at buy me a coffee dot com slash fexingo keeps the show ad-free. #Robotics #Technology #RobotArms #Wiping #Whiteboard #ImpedanceControl #ContactForce #CMU #ICRA #Hardware #AutonomousSystems #IndustrialRobots #FexingoBusiness #BusinessPodcast #RoboticsPodcast #ForceControl #CompliantMotion #SurfaceCleaning Keep every episode free: buymeacoffee.com/fexingo