1. AutoCAD 2D_I Module 3: Freehand Pictorial Sketching

2. Module Objectives After the completion of this module, the student will be able to: 1.Identify the importance of freehand pictorial sketching. 2.Correctly produce good quality freehand pictorial sketches.

3. Introduction

4. Freehand sketching is a very important skill in Design and Graphics that everyone can improve. Sketches can transfer ideas, instructions, and information in a clear and concise way however; this requires the sketches to have the same proportions as the original drawing/object. An example is shown in the next figures.

5. Introduction Freehand Sketching Drawing using Tools

6. Sketching

7. Sketching requires drawing freehand straight lines that are nearly straight. To draw a nearly straight line from one point (A) to another (B). With the pencil on point A, look to the point B then draw the line as shown below

8. Sketching Don’t look at the pencil point. Look to the point where you are going to. Your line should be as straight as the one shown below

9. Five stages sketch an object in good proportions

11. Activities

12. Practical Task 1Practical Task 2 Next

13. Back

15. Isometric Projection

16. Isometric drawings are drawn with the aid of a 60/30 set square and a tee square. Isometric drawings are constructed using lines at 30° to the horizontal and vertical lines as shown in the next figures. Next Figures

17. Isometric Projection Note: isometric drawings use the same stages as sketching Always start by faintly drawing the three axes of the component with the 60/30 set square. Make off the height, width and length along the appropriate axis. Fig. 3.5 a. Complete the box that will contain the finished object. Fig. 3.5 b. Still using feint lines build in the shape required. Fig.3.5 c. Finally line in with a more bold line type. Fig. 3.5 d. Figures

18. Isometric axis Final Drawing Isometric Projection Back

19. Activities

20. Practical Task 3Home works Next

21. Back

22. Home wrok Home work 1Home work 2 Back

25. The End