Required is an intelligent robot: It shall drivethough a door to a bed to provide an ice coolerwith a bottle of champagne. A problemwas the doorstep with a height of 30 millimetresand a width of 120 millimetres. igus® echains® convert the robot into a tracked vehiclethat now fulfils its duty optimally.
 
University KULeuven (UHasselt), Peter Aerts,Diepenbeek, Belgium