- Auto CAD Tutorial 2010 -

3.1 - ENTERING THE 3RD DIMENSION IS NOT SCARY

 LESSON 3-1 INTRODUCTION TO 3-D LESSON 3-9 ADDING MATERIALS LESSON 3-2 ISOMETRIC DRAWING LESSON 3-10 PRIMITIVE SOLIDS LESSON 3-3 WORKING IN 3 DIMENSIONS LESSON 3-11 BOOLEAN OPERATIONS LESSON 3-4 VIEWING 3-D OBJECTS LESSON 3-12 CHANGING FROM THE WCS TO THE UCS LESSON 3-5 BASIC WIREFRAME MODELS LESSON 3-13 MAPPING MATERIALS LESSON 3-6 LINE THICKNESS LESSON 3-14 CREATING NEW MATERIALS LESSON 3-7 REGIONS AND 3-D FACES LESSON 3-15 EXTRA PROJECTS AND A TUTORIAL LESSON 3-7a MORE ABOUT EXTRUDING & LOFTING LESSON 3-16 PUTTING IT ALL TOGETHER - MODEL A BUILDING LESSON 3-8 REVOLVED OBJECTS LESSON 3-17 INTRODUCTION TO RENDERING AND LIGHTING

Topics covered in this Lesson:

INTRODUCTION - WHY 3-D?

You may have already figured out why CAD has many advantages over manual drafting. One big advantage is that once you've drawn something, you shouldn't have to draw it again. If you manually drew a house plan, you would have to draw a front elevation, side elevations, and possibly a perspective view. With one 3-D CAD model, you can generate views from any angle either inside or outside the house and animations. Afterwards, if your client needs something changed, you can then make the changes once. If you're drawing mechanical parts, you can generate virtual prototypes or even create rapid prototypes. In this manner Boeing was able to design and prototype the 777 jetliner. This level of engineering would be impossible without CAD.

 Your company may not do a lot of 3D work, but it is still a good skill to have and it's also more fun than 2D. You'll be learning the 3-D concepts in the following order: Isometric Drawings (not true 3D) Wire-frame (very basic 3D) Surfaces / Regions (primitive 3D) Solid Objects (advanced 3D)

You will have a chance to draw the same object different ways to see the differences between the various methods.

Before entering the exciting world of 3-D, you'll have to learn some more CAD terminology. This level presumes that you have a good understanding of 2D commands.

As computers and software get more sophisticated, working in 3D becomes more popular. You have more power in desktop machine today, than was dreamed of when CAD first appeared. Be prepared that you will likely need to learn 3D at some point in your career. Once you are comfortable working in 3D, you'll find that you will rarely want to draw in 2D again. Autodesk (the makers of AutoCAD) make other products designed specifically for certain disciplines - Architectural Desktop, Map, 3D Studio Max and more. Depending upon your budget and needs, you may need to look into programs like these. The concepts taught in these lessons will aid you when you work in any 3D program.

Have a look at some AutoCAD renderings in you tube before you start in this new world.