Question: Consider the closed-loop motion controller with optical encoder pictured below. The pitch of the lead screw is 5mm/rev and the gear ratio of the motor

  1. Consider the closed-loop motion controller with optical encoder pictured below. The pitch of the lead screw is 5mm/rev and the gear ratio of the motor is 4:1, in other words, 4 revolutions of the motor per revolution of the leadscrew. The step angle of the optical encoder is 3 and the motor has 48 steps per revolution. If we want to move the table a total of 20mm at a rate of 300mm/min
    1. How many pulses will we see on the optical encoder when the table moves 20mm?
    2. How fast does the motor turn in revolutions/minute to achieve a table speed of 300mm/min?
    3. How many steps does the motor need to turn to move the table 20mm?

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