The positioning control system shown in the figure below is used to convert the rotational motion of the servo motor into linear motion.
The ball screw connected to the servo motor rotates to move the movable table.

If the distance traveled by the movable table during one rotation of the ball screw (servo motor) is known, then the number of rotations of the servo motor necessary to move the table from point A to point B can be calculated.

Decide time T, and if t1, t2, and t3 are known, constant speed A can be calculated.