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)

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

amy/khk/jke/puo EC7.1

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

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:

amy/khk/jke/puo EC7.3

First Point X,Y

EC202-Computer Aided Design

RESULT :

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:

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 - ……………………………………………………

amy/khk/jke/puo EC7.4

(11 Marks)

(3Marks)

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

2. Which coordinate system technique is easier to work with? Give a reason for your

answer.

…………………………………………………………………………………………

…………………………………………………………………………………………

…………………………………………………………………………………………

…………………………………………………………………………………………

REFLECTION:

At the end of this chapter, I have learnt that:

…………………………………………………………………………………………………

…………………………………………………………………………………………………

…………………………………………………………………………………………………

…………………………………………………………………………………………………

amy/khk/jke/puo EC7.5

(2Marks)

(1Marks)

(3Marks)