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ViziWiz bookstoreVisit our bookstore to purchase our authored books on topics such as AutoCAD, Architectural Desktop, Mechanical Desktop, Inventor, Autodesk VIZ, 3D Studio MAX, 3D modeling and animation, or multimedia. Other items are also available.

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We have recently created ViziTips, a Flash version of our tips section. It contains tips related to CAD and Graphics in general. If you are a webpage developer you can request the code to added it to your site.

  Technology Review

In this section we will be present a series of short articles on interesting technology that relates to computer aided design and graphics.

 Rapid Prototyping

Rapid prototyping takes virtual designs from computer aided design (CAD) or animation modeling software, transforms them into thin, virtual, horizontal cross-sections and then creates each cross-section in physical space, one after the next until the model is finished. It is a WYSIWYG process where the virtual model and the physical model correspond almost identically.
With additive fabrication, the machine reads in data from a CAD drawing and lays down successive layers of liquid, powder, or sheet material, and in this way builds up the model from a series of cross sections. These layers, which correspond to the virtual cross section from the CAD model, are joined together or fused automatically to create the final shape. The primary advantage to additive fabrication is its ability to create almost any shape or geometric feature.
The standard data interface between CAD software and the machines is the STL file format. An STL file approximates the shape of a part or assembly using triangular facets. Smaller facets produce a higher quality surface.
The word "rapid" is relative: construction of a model with contemporary methods can take from several hours to several days, depending on the method used and the size and complexity of the model. Additive systems for rapid prototyping can typically produce models in a few hours, although it can vary widely depending on the type of machine being used and the size and number of models being produced simultaneously.

 3D Laser Scanning

3D laser scanning accomplishes high-quality three-dimensional measurement of complex objects, generating both incredibly accurate geometric models and stunning photorealistic texture in less time than traditional recordation. For straightforward object recordation, metric analysis, reverse engineering and rapid prototyping, 3D laser scanning offers great flexibility and accuracy on a moderate budget. Objects from the size of a coin to full-sized vehicles can be quickly and accurately measured with sub-millimeter accuracy. Models created through 3D laser scanning can be imported into other mainstream 3D modeling, CAD/CAM, and engineering software applications for analysis, viewing, and manufacture.
A 3D laser scanner measures objects by emitting a laser line, which sweeps across the field of view. A digital video camera records the laser line, calculating the size and shape of objects within the field of view by analyzing the “bends” in the line as it sweeps non-flat surfaces. The measurement data is recorded to a CCD, and a color image of the scene is attached. By moving the object, or the scanner, multiple measurements are collected, which are then aligned and merged to create a solid model of the entire object.

  Autodesk AutoCAD Tips and Tricks

  
 click to go to Student Engineering and Design Community

 Articles -  CADalyst Magazine

 Adobe Photoshop
Tips and Tricks

 



Instructor ResourceAccess content to be used as a resource for instructors who use the Ethier and Ethier textbooks. You will find PowerPoint presentations, instructor's guides, tips, and more.

Student ResourceAccess content to be used as a resource for students who use the Ethier and Ethier textbooks. You will find drawings models, reference sites,  and more.

Instant Design BooksThe latest CADD learning resources, from drawing basics to 4D animation. The Instant Design and Drafting book series provides the learner with  fast and efficient instructional methods.

VideosAccess streaming video content to be used to help you learn by watching the action performed on the screen.  There are short videos on various 2D and 3D topics.

DownloadsAccess free on-line content that you can use directly in your design projects. Some of the content can be dragged directly from the site. Also included are free bitmap textures.

LinksA variety of links related to CAD and graphics. Some categories are:   Technology, Software, Downloads, Magazines, and Standards. This includes Autodesk and Discreet.

I-drop technologyi-drop ® Technology by Autodesk allows easy access to design content over the Web. With i-drop enabled content, designers can drag it and drop it directly into their drawings.

About UsViziWiz.com® is a subsidiary of CADInnovations. We have been consultants in the fields of CAD and graphics since 1977. We have authored over 24 books on CAD.

Excerpt from our Autodesk Inventor book: click icon to go our books page


Instant Design: Fundamentals of Autodesk Inventor®, another text in the Ethier Instant Design and Drafting series, continues the tradition of delivering technical information in a quick and easy format. Although this book does not attempt to cover all the complexities of the program, it does offer a firm grounding in the basics of part and assembly creation from sketch to production drawings. Autodesk Inventor is a 3D, feature-based, parametric modeler that allows the user to create models of 3D parts from 2D sketches, then to use these parts to create detailed drawings and assemblies. The power of the program lies in its parametric abilities to alter an existing design to be used for a variety of applications. At any time, you can change the shape and size of the features that contain the part. And, once a part has been created, two dimensional drawings of the part in various views can be created automatically by applying drafting standards such as hidden features and auxiliary views, as well as notations for typical features such as countersinks and counterbores. The aim of this text is to give you information and hands-on practical experience so that you will be able to make use of this complex interface in the most efficient manner possible. To this end
• hundreds of figures are included to illustrate the various processes needed to move from a 2D sketch to a fully annotated drawing, using a 3D solid model as the base.
• for each new process, concise theory is given, followed by a practical application to reinforce the newly obtained information.
• The first section in each chapter lists key ideas that will be covered in the chapter.
• Throughout the chapter you may see a variety of elements:
• stylized print that emphasizes an idea on a page,
• tip boxes that stress a certain fact about the program,
• command sequences in boldface print that present the user’s desired input, and
• Hands-On exercises that reinforce a new idea.
• At the end of each chapter you will find
• a short-answer test,
• a series of longer-answer questions, and
• a number of assignments.

Excerpt from our Digital Information book: click icon to go our books page


Digital Information Management is your essential guide to the world of multimedia. Digital multimedia is the integration of text, graphics, audio, animation, and video used for a variety of purposes, including presentations, training, education, digital publications, and simulations. This book explains the various elements of digital multimedia and how to integrate them for the best outcome. We’d like to make some grand statement like” Welcome to the World of Multimedia” but, if you live when we do, in the twenty-first century, the fact is that you’re in that world whether you feel welcome in it or not. And, for those of you who are very keen to navigate this world, and have taken to it with a confident leap, there may be little in this book that you probably don’t already know. However, for the rest of us, those struggling to learn all the tricks and shortcuts, or even those of us who know little to nothing about all this new technology, this book will take an honored place beside your dictionary, your thesaurus, and your campus map. For most of us, this text is the start of a comfortable journey through some of the basic components of the multimedia presentation. Take a few minutes to study the table of contents. You’ll get a fundamental sense of the scope of the text and the variety of material that we intend to explore. To begin with, there is a chapter on the idea of multimedia itself – what kinds of media are we talking about that combine to make up the concept? Where is multimedia an important part of the modern picture? What are the equipment requirements and what software is available. And finally, where do we locate these resources. Next, we take an in-depth look at text in the multimedia project paying attention to font characteristics and ending in the world of optical character recognition. Then, we move on to chapters specializing in graphics, audio, animation, and video. Lastly, the final three chapters explore the world of copyright and licensing agreements, communicating and sharing drawings, and a comprehensive look at planning and producing a multimedia presentation with any content. But the text itself is only the beginning of the resources that the volume contains. Along with the book is included a CDROM that provides some amazing things. Not only does the accompanying disk have the color versions of the book’s graphics, and all the sound and audio clips accessed discretely without the software that was necessary for its production, but it contains a collection of copyleft software that’s invaluable as a resource. To name a few, the CDROM contains a variety of free editors including one for raster graphics, one for vector graphics, one for audio and one for video. As well, the CD has a number of viewers including one for multimedia, one for DWFs, one for 3D, and one for media. See appendix A for detailed information on all the included software. You’ll notice that Bob, our friendly posable wooden humanoid, follows you through your progress from the beginning to the end. He’ll greet you at the beginning of every chapter and signal a change in content and theme. Think of him as your guide. Enjoy the journey.
The integrated CD-Rom contains practice files as well as fully functional software applications for such purposes as:
• multimedia viewing that accompanies this book
• word processing and slide presentations
• raster image editing and vector image editing
• audio recording/editing and video editing
• image morphing and warping
• 2D and 3D computer-aided design viewing and plotting
• PDF viewing
• 3D character modeling and rendering
The text can be used by anyone involved with digital information - digital artists, engineers, office managers, and animators. Educators and trainers will find valuable information, as will information managers who must keep track of digital files. It is also useful for those who are new to multimedia and digital technology, providing the insight needed to make informed decisions.

 


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