I set the robot so that the ball bounces very slowly on the robot’s side of the table first and serves a ball to the forehand or backhand position on the opposite side of the table. This allows my children to stand on a chair and hit the ball from the same position. It does not matter if the ball goes on the table at the age I am teaching them at. What is important is the timing of whether they make contact or not. They have both been doing these drills since 18 months old.