Download presentation

Presentation is loading. Please wait.

Published byMarina Wellborn Modified over 2 years ago

1
SDC PUBLICATIONS © 2011 Chapter 3 Geometric Construction and Editing Tools Learning Objectives: Set up the display of Drawing Units. Display AutoCAD's toolbars. Set up and use OBJECT SNAPS. Edit, using EXTEND and TRIM. Use the FILLET command. Create parallel geometric entities. Using the PEDIT command. Use the EXPLODE command.

2
SDC PUBLICATIONS © 2011 AutoCAD® 2012 Tutorial First Level: 2D Fundamentals Introduction Exploring the possibilities of a CAD system can be very exciting. For persons who have board drafting experiences, the transition from the drafting board to the computer does require some adjusting. But, the essential skills required to work in front of a computer are not that much different from those needed for board drafting. In fact, many of the basic skills acquired in board drafting can also be applied to a computer system. For example, the geometric construction techniques that are typically used in board drafting can be used in AutoCAD. The main difference between using a CAD system over the traditional board drafting is the ability to create and modify geometric entities very quickly and accurately. As it was illustrated in the previous chapters, a variety of object construction and editing tools, which are available in AutoCAD, are fairly easy to use. It is important to emphasize that a good understanding of the geometric construction fundamentals remains to be the most important part of using a CAD system. A good understanding of the basic geometric construction commands can be very helpful in expanding one’s understanding of the more complex commands/techniques involved in using CAD systems.

3
SDC PUBLICATIONS © 2011 AutoCAD® 2012 Tutorial First Level: 2D Fundamentals Geometric constructions The creation of designs usually involves the manipulations of geometric shapes. In technical drawings, many of the geometric shapes are constructed with specific geometric properties, such as perpendicularity, parallelism and tangency. For example, in the below drawing, quite a few implied geometric properties are present.

4
SDC PUBLICATIONS © 2011 AutoCAD® 2012 Tutorial First Level: 2D Fundamentals Bisection of a Line or Arc -CAD Method

5
SDC PUBLICATIONS © 2011 AutoCAD® 2012 Tutorial First Level: 2D Fundamentals Bisection of an Angle - CAD Method

6
SDC PUBLICATIONS © 2011 AutoCAD® 2012 Tutorial First Level: 2D Fundamentals Dividing a Given Line into A Number of Equal Parts

7
SDC PUBLICATIONS © 2011 AutoCAD® 2012 Tutorial First Level: 2D Fundamentals Circle Through Three Points

8
SDC PUBLICATIONS © 2011 AutoCAD® 2012 Tutorial First Level: 2D Fundamentals Line Tangent To A circle from A Given Point

9
SDC PUBLICATIONS © 2011 AutoCAD® 2012 Tutorial First Level: 2D Fundamentals Circle of a Given Radius Tangent To Two Given Lines

10
SDC PUBLICATIONS © 2011 AutoCAD® 2012 Tutorial First Level: 2D Fundamentals Circle of a Given Radius Tangent To Two Given Lines

11
SDC PUBLICATIONS © 2011 AutoCAD® 2012 Tutorial First Level: 2D Fundamentals The Gasket design

12
SDC PUBLICATIONS © 2011 AutoCAD® 2012 Tutorial First Level: 2D Fundamentals

13
SDC PUBLICATIONS © 2011 AutoCAD® 2012 Tutorial First Level: 2D Fundamentals Using the Extend command

14
SDC PUBLICATIONS © 2011 AutoCAD® 2012 Tutorial First Level: 2D Fundamentals Using the Trim Command

15
SDC PUBLICATIONS © 2011 AutoCAD® 2012 Tutorial First Level: 2D Fundamentals The FILLET command

16
SDC PUBLICATIONS © 2011 AutoCAD® 2012 Tutorial First Level: 2D Fundamentals Converting objects into a Polyline

17
SDC PUBLICATIONS © 2011 AutoCAD® 2012 Tutorial First Level: 2D Fundamentals Using the OFFSET command

18
SDC PUBLICATIONS © 2011 AutoCAD® 2012 Tutorial First Level: 2D Fundamentals Using the Area Inquiry Tool

Similar presentations

Presentation is loading. Please wait....

OK

Chapter One AutoCAD Fundamentals

Chapter One AutoCAD Fundamentals

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on nestle india ltd company Ppt on ar verbs Ppt on classroom management Ppt on service industry in india Ppt on network switching Ppt on wind energy pdf Ppt on earth movements and major landforms in australia Free ppt on forest society and colonialism notes Ppt on indian equity market Full ppt on electron beam machining ppt