978-1-58503-369-0 -- AutoCAD LT 2008 Tutorial

®AutoCAD LT 2008 Tutorial Randy H. Shih Oregon Institute of Technology SDC PUBLICATIONS Schroff Development Corporation www.schroff.com www.schroff-europe.com ® AutoCAD LT 2008 Tutorial 1-1 Lesson 1 Geometric Construction Basics Copyrighted Material Copyrighted Material Copyrighted ♦ Create and Save AutoCAD Drawing FilesMaterial ♦ Use the AutoCAD LT Visual Reference Commands ♦ Draw, Using the LINE and CIRCLE ♦ Use the ERASE Command ♦ Define Positions Using the Basic Entry Methods Copyrighted ♦ Use the Pan Real-time Option Material ®1-2 AutoCAD LT 2008 Tutorial Introduction Learning to use a CAD system is similar to learning a new language. We need to begin Copyrighted with the basic alphabet and learn how to use the basic alphabet correctly and effectively through practice. This will require learning some new concepts and skills as well as learning a different vocabulary. All CAD systems create designs using basic geometric entities. Most of the constructions used in technical designs are based upon two-Material dimensional planar geometry. The method and number of operations that are required to accomplish the construction are different from one system to another. In order to become effective in using a CAD system, we must learn to create geometric entities quickly and accurately. In learning to use a CAD system, lines and circles are the first two, ...