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Page 83 - Toucpad robotics C11
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    21 st
                                                                                                   Century   #Experiential Learning
                                      A robot’s arm uses an actuator system to perform a series of   Skills
                                      delicate  movements.  The precision  of the actuators  is critical  for  accurate  execution.  How do
                         deep         actuators contribute to a robot’s overall precision, and what factors should be considered when
                       thinking       choosing actuators for different robotic applications?

                                                                                         21 st
                       LAB ACTIVITY                                                     Century   #Coding & Computational Thinking
                                                                                        Skills
                          “Measure Degrees of Freedom of a Robotic Arm”
                                 Tools: A toy robotic arm kit (or DIY cardboard arm with joints + servo motors + Arduino).
                                 l
                                 Task: Count and test the DOF of the robotic arm.
                                 l
                                 Steps:
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                                 1.   Assemble or simulate a robotic arm with joints (base rotation, elbow, wrist, gripper).

                                 2.   Connect each servo motor to Arduino.
                                 3.   Write code to rotate each servo by specific angles (e.g., 0°, 90°, 180°).
                                 4.   Observe how each joint adds a new degree of freedom.
                                 Outcome: Students practically see how DOF and joints affect robot flexibility.
                                 l

                         Answers
                      Exercise (Solved)
                      A.  1. ii    2. iii    3. iii    4. ii    5. iii    6. ii    7. i   8. ii    9. i   10. iii
                      B.  1.  Links                        2.  Joints                 3.  Degrees of freedom   4.  Planar
                          5.   Spatial                     6.  Payload                7.  Workspace            8.  Omni
                          9.   Low-cost                   10.  Base or Chassis
                      C.  1.   False                       2.  False                  3.  True                 4.  True
                          5.  False
                      D.  1.   d.       2.  b.             3.  c.             4.  a.             5.  e.

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                                                                                                              Mechanical System

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