2. Faculty of Electrical Engineering 1 Lecture : En. Syahrom Bin Zakaria EC202 COMPUTER AIDED DESIGN

3.  X - a positive value pointing to the right on the screen;  Y - a positive value pointing up on the screen; and  Z - a positive value pointing straight at the user in 3D space. 2

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5.  Horizontal plane;  Frontal plane;  Profile plane;  Oblique plane; and  Inclined plane. 4

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8.  Wireframe;  surface; and  Solid 7

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12.  Extruding a 2D Object 11 Object in 2D viewObject after Extrude

13.  From the pull down menu select Draw – surface – revolved surface as shown 12

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17. 16 Can you name these primitive shapes?

18.  BOX 17 At World UCS UCS at X rotate 90 0

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20.  UCS World 19

21.  UCS X rotate 90 0 20

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23.  UCS World 22

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26.  BOOLEAN OPERATION UNION 25

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29.  INTERFERE INTERFERE is an identifier command. It identifies (highlights) the area where two selections of 3D solids overlap and gives you the option to create a new 3D solid from the overlapping volume. 28

30.  Is similar to the command for 2D drawings. 29

31.  For chamfering an object as shown below, you must enter command “Chamfer”.  Select the distance of chamfering or angle in the command prompt (the example to you is a distance).  Select edge to be chamfer 30

32. 31 in this example: The 1 st dist. is 20mm, 2 nd dist is 30 mm

33.  First enter the command “fillet”,  Enter the radius (20mm in example),  Select the the edge to be fillet, 32

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35.  SECTION 34

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37.  UCS toolbar 36 WCS 3 point

38.  To draw a circle in an inclined surface Y. 37

39.  Specify new origin point;  Specify point on positive X-portion;  Specify point on positive Y- portion 38

40.  A circle is drawn on surface Y. 39

41.  Solview is a command provide another method of setting up orthographic views and it is superior to some of the options because it setup layers according to your named view. To implement solview, work in the multistep process: 1. Create a 3D solid modeling, 40

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43. 42 Layout1 (layout tab)

44. 43 Then, Click ok Change paper size if necessary

45. 44 Delete this view first

46. Command : solview (enter) Enter an option [Ucs/Ortho/Auxialiary/Section]: Ucs (enter)  [Named/World/?/Current] : (press Enter)  Specify view center : (pick any point, the top view will appear, then press Enter)  Specify first corner of viewpoint: (use window to pick the points.)  Enter view name: top (press Enter) 45

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48.  Enter an option [Ucs/Ortho/Auxialiary/Section]: ortho  [Named/World/?/Current] : (press Enter)  Specify view center : (pick any point, the top view will appear, then press Enter)  Specify first corner of viewpoint: (use window to pick the points.)  Enter view name: front (press Enter) 47

49. 48 Midpoint of border

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52.  Enter an option [Ucs/Ortho/Auxiliary/Section]: Auxiliary (select the front view)  Specify first point of the inclined plane: _endp of Specify second point of the inclined plane: _endp of  Specify side to view from:  Specify first corner of viewport: (use window to pick the points)  Enter view name: Auxiliary (press Enter) 51

53. 52 Pick endpoint A and B

54. 53 After picking endpoint A and B

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58. 57 Command : pspace (press enter)

59. Command: Soldraw Select objects: All (press Enter) 58

60.  After soldraw, check the layer control drop- down list as shown below: 59

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63.  Pspace command are switch command that take you back to paper space from model space.  When you click layout tab you access paper space.  This 2d space allow you to print your drawing at a scale of your choice. 62

64.  Allow you to move from pspace into model space area.  Allow you to work on the 3d model in your drawing 63

65.  The process is similar to creating orthographic and auxiliary view.  move from pspace into model space (mspace) area.  Select 3D View, then SE Isometric or other directions 64