Robotics. Actuators. Motors. Sensors. NXT-G logic. Lab: Measurements Homework: Task moodle assignment! Mechanics readings. Prepare summary. Postings. Next class: Closer look at programming and build & program robot with bumper (use of touch sensor). Recap. Build: attention to detail.
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Actuators. Motors. Sensors. NXT-G logic.
Homework: Task moodle assignment! Mechanics readings. Prepare summary. Postings. Next class: Closer look at programming and build & program robot with bumper (use of touch sensor)
9 rotations too many
Extra credit: report on advantages/disadvantages of specific type of motor, other types of actuator.
Very, very loose definitions
Torque used for defining the power of the motor. Torque = force * distance. Motor can apply that force at that distance.
Velocity is speed in a direction—a vector as opposed to a scalar quantity. Acceleration refers to changes in velocity. Robots need acceleration to start and to overcome gravity and friction. For wheels, velocity = circumference * rpm. Revolutions Per Minute depend on torque from motor AND friction from wheels against specific surface
Gears/gearing is to put the torque where you want it.
Work load of robot is the robot itself plus the payload (what it needs to carry)
Prepare neat tables to show.
Read statics, dynamics and gear sections of
Read about gears, torque, motors in Perdue book (in Library)
Find 'spec' data (torque, rpm, etc.) on Lego Mindstorms motor
Write summary, including definition of terms, to turn in next class!