# Technical Drawing CHAPTER 2 By : Aznita Abdullah.

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Technical Drawing CHAPTER 2 By : Aznita Abdullah

MODULE OBJECTIVE: 2.1 (i) By the end of this module the student will be able to: Identify and sketch the following projections: Isometric Drawing (Explain and practice oblique and isometric sketching 2.1)

Isometric Drawing In this method lines are drawn full size with axes at 30 degrees,-30degrees and 90 degrees, to represent X, Y and Z coordinates.

GRID PAPER

1. Start by drawing an arrow to represent the front corner of the box. 2. Draw a VERTICAL line at one side 3. Draw a second VERTICAL line at other side 4. Draw a parallel line to complete one side

5. Draw a parallel line to complete other side 6. Draw the back edge 7. Now complete the top surface 8. Rub out the ends of lines to finish the box

9. Remove the isometric grid paper

GRID PAPER

WORKSHEET 3 (Cube with Holes & Pyramid)

https://mail.actvet.ac.ae/owa/redir.aspx?C=626f8365011b41c6953c6 8f2ee1dfe9f&URL=http%3a%2f%2fstsdubai.pbworks.com%2fw%2ffil e%2ffetch%2f63477536%2fGrade%252010%2520%25E2%2580%259 3%2520Technical%2520Drawing%2520-%2520Term%25202%2520- How%2520to%2520Draw%2520Isometric%2520drawing.pdf STEP BY STEP OF DRAWING ISOMETRIC

MODULE OBJECTIVE: 2.1 (ii) By the end of this module the student will be able to: Identify and sketch the following projections: Oblique Drawing

Oblique Projection

USING GRID PAPER

TO DRAW FRONT VIEW Construction line

TO DRAW FRONT VIEW Object line

TO DRAW SIDE VIEW Construction line

TO DRAW SIDE VIEW Object line

TO DRAW PLAN VIEW Construction line

TO DRAW PLAN VIEW Object line

ERASE CONSTRUCTION LINE

TO DRAW CIRCLE Construction line locating circle center

x x x x x x x x TO DRAW CIRCLE Marking for circle

x x x x x x x x TO DRAW CIRCLE Object line

TO DRAW BACK CIRCLE Construction line Locating center

TO DRAW BACK CIRCLE Construction line

x x x x x x x x TO DRAW BACK CIRCLE Circle object line

ERASE ALL CONSTRUCTION LINE

X X