1. INTRODUCTION TO 3-D 3-D CAD TERMINOLOGY 2-D
A concept of displaying real-world objects on a flat surface showing only height and width. This system uses only the X and Y axes
3-D
A way of displaying real-world object in a more natural way by adding depth to the height and width. This system uses the X Y and Z axes.
Boolean operations
Commands that allow you to add, subtract or intersect solid objects in AutoCAD.
Complex surface
Generally a curved surface. Examples: car fender, landscape contour.
Elevation
The difference between an object being at zero on the Z-axis and the height that it is above zero.
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2. INTRODUCTION TO 3-D 3-D CAD TERMINOLOGY Extrude
The extrude command raises the shape of a 2D outline into a 3D solid. For example, a circle would be extruded into a cylinder.
Face
The simplest true 3-D surface.
Facet
A three or four sided polygon that represents a piece (or section) of a 3-D surface.
Hidden line removal
A way of hiding lines that would not be visible if you were viewing the actual object you have drawn in AutoCAD. (Command: HIDE)
Isometric Drawing
A simple way of achieving a '3-D' appearance using 2-D drawing methods.
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3. INTRODUCTION TO 3-D 3-D CAD TERMINOLOGY Plan View
Also known as the top view, a plan view looks directly down the WCS Z-axis to the X-Y axis.
Primitive
A basic solid building block. Examples would be boxes, cones, cylinders.
Region
A 2-D area consisting of lines, arcs, etc.
Rendering
A complex way of adding photo-realistic qualities to a 3-D model you have created.
Shading
A quick way of adding color to a 3-D object you have drawn. (Command: SHADE)
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4. INTRODUCTION TO 3-D 3-D CAD TERMINOLOGY Solid Model
A 3-D model creating using solid 'building blocks'. This is the most accurate way of representing real-world objects in CAD.
Surface Model
A 3-D model defined by surfaces. The surface consists of polygons. (See facets.)
Thickness
A property of lines and other objects that gives them a 3-D like appearance.
UCS
The user co-ordinate system. This is defined by the person drawing to have easier access to portions of a 3-D model.
View
A particular view of the object you have created.
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5. INTRODUCTION TO 3-D 3-D CAD TERMINOLOGY Viewport
A window into your drawing showing a particular view. You can have several viewports on your screen. Different from the viewports used in plotting.
Wire-frame Model
A 3-D shape that is defined by lines and curves. A skeletal representation. Hidden line removal is not possible with this model.
Z-Axis
The third axis that defines the depth.
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6. ISOMETRIC DRAWING
The sample
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7. Isometric Snap
The Drawing Aids dialog box.
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8. WORKING IN 3 DIMENSIONS THE 3-D CO-ORDINATE SYSTEM
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9. The Properties of this line
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10. WORKING IN 3 DIMENSIONS
The diagrams
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11. WORKING IN 3 DIMENSIONS
The diagrams
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12. WORKING IN 3 DIMENSIONS 3D Rotation DIRECTION OF POSITIVE ROTATION
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13. VIEWING 3-D OBJECTS
Viewports
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14. VIEWING 3-D OBJECTS
Viewports
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15. VIEWING 3-D OBJECTS
PERSPECTIVE VIEWS
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16. VIEWING 3-D OBJECTS
PERSPECTIVE VIEWS
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17. VIEWING 3-D OBJECTS
The Set Current
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18. BASIC WIREFRAME MODELS
The Isometric
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19. BASIC WIREFRAME MODELS
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20. BASIC WIREFRAME MODELS
The Viewport
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21. LINE THICKNESS
The Modify Polyline
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22. LINE THICKNESS
The SW isometric viewport
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23. REGIONS AND 3-D FACES
Regions
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24. REGIONS AND 3-D FACES
NEW PROJECT
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25. MORE ABOUT EXTRUDING & LOFTING
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26. MORE ABOUT EXTRUDING & LOFTING
EXTRUDING ALONG A PATH
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27. MORE ABOUT EXTRUDING & LOFTING
EXTRUDING ALONG A PATH
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28. MORE ABOUT EXTRUDING & LOFTING
EXTRUDING WITH A TAPER
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29. MORE ABOUT EXTRUDING & LOFTING
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30. MORE ABOUT EXTRUDING & LOFTING
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31. MORE ABOUT EXTRUDING & LOFTING
USING THE LOFT COMMAND
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32. MORE ABOUT EXTRUDING & LOFTING
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33. MORE ABOUT EXTRUDING & LOFTING
Current Viewport
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34. REVOLVED OBJECTS
Revolving Objects
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35. REVOLVED OBJECTS
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36. REVOLVED OBJECTS
VIEWING YOUR LAMP
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37. REVOLVED OBJECTS
The ROTATE3D
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38. ADDING MATERIALS
Materials and Rendering
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39. ADDING MATERIALS
The HIDE
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40. ADDING MATERIALS
The Block
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41. ADDING MATERIALS
Follow these steps to get an basic, accurate rendering:
Draw the object using solids or surfaces
Apply the materials
Render the scene
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42. ADDING MATERIALS
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43. ADDING MATERIALS
Materials
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44. To add a material to the cube, click on the icon
ADDING MATERIALS
To add a material to the cube, click on the icon
of the material (at the top) you want to use.
Then press the Apply Material Button
Move your cursor into the drawing area and
your cursor should change to this one:
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45. ADDING MATERIALS
Render
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46. ADDING MATERIALS The Visual Style Panel (Realistic)
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47. ADDING MATERIALS
The Materials / Texture On
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48. PRIMITIVE SOLIDS
The 3D modeling workspace
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49. PRIMITIVE SOLIDS Primitive Solid SHAPE COMMAND ICON DESCRIPTION BOX
Creates a solid box after you provide 2 opposite corners and a height.
SPHERE
Creates a solid sphere from a center point and radius.
CYLINDER
Creates a straight cylinder from a center point, radius and height.
CONE
Creates a tapered cone from a center point, radius and height.
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50. PRIMITIVE SOLIDS Primitive Solid SHAPE COMMAND ICON DESCRIPTION WEDGE
Creates a triangular wedge from 2 opposite points.
TORUS
Creates a torus (donut shape) based on center point, radius and tube radius.
PYRAMID
PYRAMID / PYR
Draws a solid object with a polygon (3-32 sides) base that rises to a central point.
POLYSOLID
PSOLID
Draws a solid object with width and height as would draw a polyline.
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