Method and a system for facilitating calibration of an off-line programmed robot cell

A system for facilitating calibration of a robot cell including one or more objects (8;52) and an industrial robot (1,2,3) performing work in connection to the objects, wherein

• the robot cell is programmed by an off-line programming tool including a graphical component (22) for generating 2D or 3D graphics based on graphical models of the objects, and the system comprises
• a computer unit (10) located at the off-line programming site and configured to store for each of the objects a sequence of calibration points (54,56,58) including information on a desired order in which the calibration points should be visited during calibration, and to generate a sequence of images (60,65,66) that shows the order in which the calibration points are to be visited, each of the images including a graphical representation of the object to be calibrated and the calibration point in relation to the object, and to transfer the images to the robot, and the robot is configured to display said sequence of images to a robot operator during calibration of the robot cell so that for each calibration point a view including a present calibration point and the object to be calibrated is displayed to the robot operator.