Write the difference between the two machines, please go into detail. Number them and write neatly. Write 5 or more please.

f Positioning Systems Figure 7.12 Two types of motion control in NC: (a) open loop and (b) closed loop. axis is shown in the sketch. To provide xy eapubility, the system shown would be piggybacked on top of a second axis perpendicular to the first. The screw has a certain pitch p, mm/ thread (in/thread). Thus, the table moves a distance equal to the pitch for cach revolution. The velocity of the worktable, which corresponds to the feed rate in a machining