![EC202-Computer Aided Design
RESULT :
amy/khk/jke/puo EC7.4
Data Entries
Absolute Coordinate System
Relative Coordinate System Polar Coordinate System
Command Line [Enter] Line [Enter] Line [Enter]
Specify Start Point:
(Pt 0)
20,30 90,120 170,30
Specify Next Point:
(Pt 1)
Specify Next Point:
(Pt 2)
Specify Next Point:
(Pt 3)
Specify Next Point:
(Pt 4)
Specify Next Point:
(Pt 5)
Specify Next Point:
(Pt 6)
Specify Next Point:
(Pt 7)
Specify Next Point:
(Pt 8)
Specify Next Point:
(Pt 9)
Specify Next Point:
(Pt 10)
Specify Next Point:
(Pt 11)
Table 7.1
DISCUSSION:
(11 Marks)
1. Write down the formulas for each of the coordinate System used in the above
exercise.
a. Absolute Coordinate System - …………………………………………………...
b. Relative Coordinate System - …………………………….………………………
c. Polar Coordinate System - ……………………………………………………
(3Marks)](https://image.slidesharecdn.com/endofchapterproblem1-141020020419-conversion-gate02/85/End-of-chapter-problem-1-4-320.jpg)
End of chapter problem 1
- 1. EC202-Computer Aided Design PRACTICAL EVALUATION FORM NAME:………………………………………………………. CLASS.: ……………… REGISTRATION NO.: ……………………………………… END OF CHAPTER PROBLEM: 1 INTRODUCTION TO AUTOCAD WINDOWS DATA INPUT TECHNIQUES No. Skill i. Accuracy ii. Within Time Frame Excellent (8-10 marks) amy/khk/jke/puo EC7.1 Average (5-7 Marks) Weak (0-4 Marks) Total 1. Create Metric Measurement & display the grid extent 2. Absolute Coordinate Method 3. Relative Coordinate Method 4. Polar Coordinate Method Sub-Total /40 No. Report Total 1. Result: Table 2.1 /11 2. Discussion /3 3 Question /4 4. Reflection /2 Sub-Total Total /60
- 2. EC202-Computer Aided Design END OF CHAPTER PROBLEM : 1 TITLE : INTRODUCTION TO AUTOCAD FOR WINDOWS COURSE LEARNING OUTCOME: CLO2: Key-in data and commands using various data input techniques to produce standard drawing. OBJECTIVES: The students should be able to: 1. Start AutoCAD commands using various input devices and how to save finished drawing and exit from AutoCAD. 2. Key-in data entries by using: a. Absolute Coordinate system technique. b. Relative Coordinate system technique. c. Polar Coordinate system technique 3. Compare the techniques of data inputs. EQUIPMENT : 1. Desktop Computer/Laptop 2. AutoCAD 2004 Software PROCEDURE : 1. Create a new drawing space using the Metric measurement. 2. Display the grid to the extent of all the drawing limits. 3. From the diagram in Fig. 7.1 given below, redraw to full scale: i. Using Absolute Coordinate System The start point is at coordinates X,Y = 20,30 ii. Using Relative Coordinate System The start point is at coordinates X,Y = 90,120 iii. Using Polar Coordinate System The start point is at coordinates X,Y = 170,30 amy/khk/jke/puo EC7.2
- 3. EC202-Computer Aided Design 4. Fill in the data entries into Table 7.1 at page EC7-4. 5. Save the drawing file and exit AutoCAD. Fig. 7.1: First Point X,Y amy/khk/jke/puo EC7.3
- 4. EC202-Computer Aided Design RESULT : amy/khk/jke/puo EC7.4 Data Entries Absolute Coordinate System Relative Coordinate System Polar Coordinate System Command Line [Enter] Line [Enter] Line [Enter] Specify Start Point: (Pt 0) 20,30 90,120 170,30 Specify Next Point: (Pt 1) Specify Next Point: (Pt 2) Specify Next Point: (Pt 3) Specify Next Point: (Pt 4) Specify Next Point: (Pt 5) Specify Next Point: (Pt 6) Specify Next Point: (Pt 7) Specify Next Point: (Pt 8) Specify Next Point: (Pt 9) Specify Next Point: (Pt 10) Specify Next Point: (Pt 11) Table 7.1 DISCUSSION: (11 Marks) 1. Write down the formulas for each of the coordinate System used in the above exercise. a. Absolute Coordinate System - …………………………………………………... b. Relative Coordinate System - …………………………….……………………… c. Polar Coordinate System - …………………………………………………… (3Marks)
- 5. EC202-Computer Aided Design QUESTION: 1. If you want to draw a line from (30,40) to (70,40), what is the correct answer? (a) 40,0 b) @ 40,0 c) @40<360 d) both b and c (1Marks) 2. Which coordinate system technique is easier to work with? Give a reason for your answer. ………………………………………………………………………………………… ………………………………………………………………………………………… ………………………………………………………………………………………… ………………………………………………………………………………………… (3Marks) REFLECTION: At the end of this chapter, I have learnt that: ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… amy/khk/jke/puo EC7.5 (2Marks)