Question 1: Explain the main difference between CAD (Computer-Aided Design) and CAM (Computer-Aided Manufacturing).

Answer: CAD involves creating detailed digital models of products or components, while CAM uses the digital designs produced by CAD to control manufacturing machines and produce physical parts.

Question 2: Describe one advantage of using CAD software in the product design process.

Answer: CAD allows for precise and easily modifiable designs, reducing errors and saving time during the development process.

Question 3: Sketch a simple 2D technical drawing of a small rectangular box with a lid, including front, top, and side views. Label the main features.

Answer: A correct sketch would show a rectangular box with a lid, with clear front, top, and side views. Labels might include 'body', 'lid', 'hinge side', and dimensions.

Question 4: Design Brief: You are tasked with creating a small wooden storage box. Use CAD software to design the box with specific dimensions: 20cm long, 10cm wide, and 8cm high. Include features such as a lid and a handle.

Answer: Students should produce a detailed CAD model of a wooden storage box with specified dimensions, a lid that fits securely, and a handle on the lid. The design should include annotations of key features.

Question 5: Identify one limitation of using CAD software in product design.

Answer: CAD software can be expensive and requires training to use effectively, which may limit access for some users.

Question 6: Sketch a simple plan for a CNC (Computer Numerical Control) machine workspace showing the key components involved in manufacturing a small part.

Answer: A correct sketch would illustrate a machine bed, tool head, control panel, and workspace area, with labels indicating each part and the movement path of the tool.

Question 7: Explain how CAM is used to produce a physical object from a CAD design.

Answer: CAM software takes the digital CAD model and generates toolpath instructions, which are sent to manufacturing machines such as CNC routers or mills to produce the physical object.

Question 8: Draw a flowchart showing the typical process from designing a product in CAD to its manufacture using CAM.

Answer: A flowchart should include stages: Start with CAD design creation → Export design to CAM software → Generate toolpath instructions → Upload instructions to manufacturing machine → Produce the physical product.

Question 9: Identify two benefits of integrating CAD and CAM systems in a manufacturing process.

Answer: Benefits include increased precision and consistency in production, and reduced manufacturing time due to automated processes.

Question 10: Sketch a conceptual design for a simple ergonomic handle that could be produced using CAD. Think about comfort and usability.

Answer: The sketch should depict a handle with curved, smooth surfaces, suitable for gripping comfortably, with annotations indicating ergonomic features such as contouring or finger grips.