Page 82 - Toucpad robotics C11

3. Spatial mechanisms allow 3D movements, unlike planar mechanisms.
4. Increasing DOF always improves efficiency of a robot.
5. The chassis acts as the foundation and stabilizer of a mobile robot.

D. Match the following:

1. Links a. Allows sideways mobility
2. Joints b. Rigid structural elements
3. Workspace c. Determines area reachable by robot
4. Payload d. Connects links and enables motion
5. Mecanum wheels e. Diagonal and lateral movement

SECTION B (Subjective Type Questions)

A. Short answer type questions.
1. Explain why increasing payload requires stronger link and joint design.

2. Differentiate between workspace and work envelope.
3. Why are omni and mecanum wheels considered revolutionary in mobile robotics?
4. How does the choice of material affect both the cost and efficiency of a robot?
5. Compare planar and spatial mechanisms with real-world examples.

B. Long answer type questions.
1. Discuss in detail how degrees of freedom determine the capability and complexity of robotic arms. Provide
examples of robots with different DOFs.
2. Explain the role of materials and structural design in determining the efficiency, strength, and cost of robots.
Support your answer with case studies from drones and industrial manipulators.

3. Evaluate the importance of workspace and payload balance in designing robots for industry. What challenges
arise when increasing one affects the other?

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C. Competency-based questions: HOTS Century #Digital Literacy
Skills
1. You are tasked to design a robotic manipulator for an electronics factory that requires delicate handling of small
components. Which mechanical considerations (DOF, material, payload) would you prioritize and why?
2. A warehouse robot must navigate narrow lanes, carry medium loads, and move in multiple directions. Suggest a
mechanical design (links, wheels, chassis) to meet these requirements.

DEGREE OF FREEDOM CHALLENGE

Stretch your arm and list all the independent movements it can make (up, down, left, right, bend, rotate).
Ask your classmate to repeat and note the number of DOFs.
Compare: Who has more flexibility? Lesson: Just like humans, robots need multiple DOFs to perform complex tasks.

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Touchpad Robotics - XI