I finally built a treadmill for my LEGO Flip Walker, so that I could display it at public events with constantly running after it. 😁 The speed of the treadmill is controlled by a Minstorms hub, with a couple of sensors to track the walker's position. Full video on YouTube if you want to see how it's built. I've had it running at a single day event already, and it works pretty well. The walker's batteries only last a couple of hours, so it does still need occasional attention. #lego #jkbrickwork