The document is an introduction to AutoCAD 2007 that teaches fundamental 2D concepts and commands. It discusses starting up AutoCAD, setting up drawing units and limits, and using commands like LINE, ERASE to create and modify simple geometric shapes. The LINE command is used to draw a five-point star as an example. Visual reference tools like GRID and SNAP are explained to help with object placement. Repeating commands and different selection methods are also covered.
The document provides an introduction to using AutoCAD 2007 to create basic 2D drawings. It discusses starting up AutoCAD, setting up drawing units and limits, and using commands like LINE, ERASE, and GRID to create and modify simple geometric shapes. The tutorial emphasizes using the on-screen interface over keyboard commands. It aims to help users learn fundamental CAD concepts and skills for constructing 2D designs.
AutoCAD is a computer-aided design (CAD) software application used by engineers, architects, and other professionals for 2D and 3D design and drafting. It was first released in 1982 and is developed and sold by Autodesk. AutoCAD allows users to create precise 2D and 3D drawings electronically. It uses Cartesian coordinates to locate points and features tools for drawing, editing, managing layers, setting properties, and printing or saving designs. Common commands in AutoCAD include line, circle, rectangle, arc, erase, copy, move, mirror, rotate, and offset.
This document provides an introduction to AutoCAD and its basic functions. It describes what CAD, CADD and related acronyms stand for. It outlines the typical elements of a CAD system including computers, input/output devices, software. It then demonstrates how to start a new drawing in AutoCAD, set units and limits, use grids and snapping, and perform basic drawing tasks like creating shapes, lines and text. The document concludes with instructions on zooming and plotting a basic drawing on paper.
The document provides learning objectives on drawing lines in AutoCAD using various techniques like the LINE command, coordinate systems including absolute, relative rectangular and relative polar coordinates, direct distance entry, and examples demonstrating how to draw geometric shapes and figures using these techniques. Key points covered include invoking the LINE command, using options like Continue, Close and Undo, understanding different coordinate systems, and examples showing how to draw figures by specifying coordinates of points.
AutoCAD is a software used to create 2D and 3D drawings for mechanical, civil, electrical, and architectural engineering. It offers drawing, annotation, and modeling tools. The document outlines 4 levels of AutoCAD skills - basics include tools for drawing lines and shapes; intermediate includes layers, groups, and blocks; advanced includes 3D modeling and rendering capabilities.
The document outlines a 10 day AutoCAD training workshop. Day 1 covers getting started with AutoCAD including the interface, coordinate systems, and basic drawing commands. Day 2 focuses on precision tools like object snaps. Day 3 is on editing objects. Day 4 covers layers and advanced objects. Day 5 discusses additional editing tools. Day 6 is about text and annotations. Day 7 is for practice. Day 8 has a test. Day 9 introduces 3D modeling basics. Day 10 covers creating solids and surfaces from 2D objects. The workshop aims to teach students how to use AutoCAD for 2D drawing and 3D modeling.
The document provides an overview of the AutoCAD interface and various drawing and editing commands in AutoCAD. It describes the main components of the AutoCAD interface and provides tutorials for drawing basic shapes and objects using commands like line, polygon, rectangle, circle, and ellipse. It also covers editing commands and how to enter coordinates and use osnap tools for accurate drawing.
This document provides a training summary on AutoCAD. It begins with an introduction to AutoCAD, including what it is, who developed it, and its uses. It then covers the different versions of AutoCAD over time. The main content sections include explanations and exercises on how to get started with AutoCAD, how to draw basic shapes and edit objects, set up drawings, add dimensions, change object properties like color and line weight, and work with layers. Trainees are guided through hands-on practice with the various drawing, editing and formatting tools in AutoCAD.
The document provides an introduction to using AutoCAD 2007 to create basic 2D drawings. It discusses starting up AutoCAD, setting up drawing units and limits, and using commands like LINE, ERASE, and GRID to create and modify simple geometric shapes. The tutorial emphasizes using the on-screen interface over keyboard commands. It aims to help users learn fundamental CAD concepts and skills for constructing 2D designs.
AutoCAD is a computer-aided design (CAD) software application used by engineers, architects, and other professionals for 2D and 3D design and drafting. It was first released in 1982 and is developed and sold by Autodesk. AutoCAD allows users to create precise 2D and 3D drawings electronically. It uses Cartesian coordinates to locate points and features tools for drawing, editing, managing layers, setting properties, and printing or saving designs. Common commands in AutoCAD include line, circle, rectangle, arc, erase, copy, move, mirror, rotate, and offset.
This document provides an introduction to AutoCAD and its basic functions. It describes what CAD, CADD and related acronyms stand for. It outlines the typical elements of a CAD system including computers, input/output devices, software. It then demonstrates how to start a new drawing in AutoCAD, set units and limits, use grids and snapping, and perform basic drawing tasks like creating shapes, lines and text. The document concludes with instructions on zooming and plotting a basic drawing on paper.
The document provides learning objectives on drawing lines in AutoCAD using various techniques like the LINE command, coordinate systems including absolute, relative rectangular and relative polar coordinates, direct distance entry, and examples demonstrating how to draw geometric shapes and figures using these techniques. Key points covered include invoking the LINE command, using options like Continue, Close and Undo, understanding different coordinate systems, and examples showing how to draw figures by specifying coordinates of points.
AutoCAD is a software used to create 2D and 3D drawings for mechanical, civil, electrical, and architectural engineering. It offers drawing, annotation, and modeling tools. The document outlines 4 levels of AutoCAD skills - basics include tools for drawing lines and shapes; intermediate includes layers, groups, and blocks; advanced includes 3D modeling and rendering capabilities.
The document outlines a 10 day AutoCAD training workshop. Day 1 covers getting started with AutoCAD including the interface, coordinate systems, and basic drawing commands. Day 2 focuses on precision tools like object snaps. Day 3 is on editing objects. Day 4 covers layers and advanced objects. Day 5 discusses additional editing tools. Day 6 is about text and annotations. Day 7 is for practice. Day 8 has a test. Day 9 introduces 3D modeling basics. Day 10 covers creating solids and surfaces from 2D objects. The workshop aims to teach students how to use AutoCAD for 2D drawing and 3D modeling.
The document provides an overview of the AutoCAD interface and various drawing and editing commands in AutoCAD. It describes the main components of the AutoCAD interface and provides tutorials for drawing basic shapes and objects using commands like line, polygon, rectangle, circle, and ellipse. It also covers editing commands and how to enter coordinates and use osnap tools for accurate drawing.
This document provides a training summary on AutoCAD. It begins with an introduction to AutoCAD, including what it is, who developed it, and its uses. It then covers the different versions of AutoCAD over time. The main content sections include explanations and exercises on how to get started with AutoCAD, how to draw basic shapes and edit objects, set up drawings, add dimensions, change object properties like color and line weight, and work with layers. Trainees are guided through hands-on practice with the various drawing, editing and formatting tools in AutoCAD.
The document discusses AutoCAD 2021 and provides instructions for its use. It begins with an introduction to AutoCAD as 2D and 3D modeling software developed by Autodesk. It then covers AutoCAD's screen and interface, coordinate systems, toolbars, basic 2D commands, dimensions, 3D modeling commands like extrude and presspull, and benefits such as accurate drawing and easy editing. The document serves as a tutorial for using AutoCAD's various functions.
The document provides an overview of a six-week industrial training project on AutoCAD. It discusses the latest version of AutoCAD, the AutoCAD interface and screen, coordinate systems, toolbars, 2D and 3D commands, modeling, and benefits of using AutoCAD. The training was completed at Hi Tech Point Technologies and covered topics like dimensions, blocks, isometric views, and examples of drawings created during the course using various AutoCAD tools and commands.
Auto Cad basic tutorial for the beginners of AutoCAD. This will help the students. This pdf contains basic commands of AutoCAD. this will surely help you. For the basic and easy AutoCAD commands please click http://studyempire.blogspot.in/2017/06/basic-auto-cad.html
The document is a presentation on basic AutoCAD tools that includes sections on drawing tools, modify tools, layers and dimensions, 3D modeling, and various drawing, editing, and modeling commands in AutoCAD like extrude, revolve, loft, and sweep. It provides information on and examples of tools like lines, circles, offset, trim, chamfer, fillet, dimensions, coordinate systems, and creating 3D objects from 2D profiles. The presentation contains 38 slides with descriptions and illustrations of key AutoCAD concepts and functions.
Intersection OF SOLIDES
THIS SLIDE CONTAINS WHOLE SYLLABUS OF ENGINEERING DRAWING/GRAPHICS. IT IS THE MOST SIMPLE AND INTERACTIVE WAY TO LEARN ENGINEERING DRAWING.SYLLABUS IS RELATED TO rajiv gandhi proudyogiki vishwavidyalaya / rajiv gandhi TECHNICAL UNIVERSITY ,BHOPAL.
Download link: https://www.researchgate.net/publication/318852873_Engineering_Drawing_-_I
DOI: 10.13140/RG.2.2.22512.56328
An engineering drawing is a type of technical drawing, used to fully and clearly define requirements for engineered items, and is usually created in accordance with standardized conventions for layout, nomenclature, interpretation, appearance size, etc.
Its purpose is to accurately and unambiguously capture all the geometric features of a product or a component. The end goal of an engineering drawing is to convey all the required information that will allow a manufacturer to produce that component.
This document provides an introduction to 3D modeling in AutoCAD. It discusses the need for 3D, including making projects more realistic, easy to understand visually, and better for marketing. It also notes benefits like easier remodeling and fewer language barriers. The document outlines different 3D model types like wireframe, surface, and solid models. It describes how to use basic 3D primitives like boxes, cylinders, spheres, cones, pyramids, toruses, and wedges to build solid models. Finally, it wishes the reader the best with AutoCAD 3D.
toolbars and axis , how to import file from autocad to sketchup , basic tools of sketchup , how to extrude walls , how to make a window (quick way ) , how to see dimensions, commands - position camera, walk and look around. All this can be learned in this presentation. A guide for beginners.
di
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Limits, Zoom, Line, Arc, Circle, Offset, Copy, Move, Trim, Layer, DIM, Mtext
The document provides an introduction to drawing and modifying objects in AutoCAD. It discusses how to start and save a drawing, control views, set units and limits, and use different coordinate systems. It also explains how to draw basic objects like lines, polylines, arcs, circles, and polygons. In addition, it covers modifying objects using commands like offset, array, extend, trim, fillet, chamfer, and lenghten. Dimensioning, text, and hatching tools are also introduced.
This document provides an overview of computer-aided design (CAD) software and the basics of using AutoCAD. It discusses what CAD is, the benefits of using CAD like accuracy and productivity. It then describes the main parts of the AutoCAD interface and basic drawing tools. The document outlines how to set up a drawing by choosing units, scale, and limits. It provides step-by-step instructions for basic drawing techniques like drawing a box using lines and offsets. It also covers modifying drawings using commands like trim, extend, and fillet. Finally, it discusses strategies for laying out a basic floor plan and dividing it into sections. In summary, the document serves as an introduction to the CAD software AutoCAD and provides found
Object reference refers to how one object references another in data management, while geometric associativity refers to how a part's geometry can be changed from the part or drawing. File extensions for sketches, parts, assemblies, and drawings are .sec, .prt, .asm, and .drw respectively. When creating a new part or assembly, it is best to use the copy from option and copy a start part to ensure proper layer setup, views, datum planes, parameters, etc. are inherited. The config.pro file contains configuration options and user macros called map keys that control Pro/Engineer's behavior. A trail file records all user inputs in a Pro/Engineer session and can be retrieved and replayed if work
This document provides an overview of AutoCAD, a commercial computer-aided design software. It discusses the history and applications of AutoCAD, including its use in architecture, engineering, graphic design, 3D printing, fashion, and industrial design. The document also outlines some of AutoCAD's key features such as storage and accessibility of files, 3D viewing capabilities, efficient revisions and modifications, speed, and accuracy of dimensions. Autodesk has developed several vertical programs built on the AutoCAD platform for specialized uses.
The document discusses various commands in AutoCAD including the line, polygon, and polyline commands. It provides details on how to use each command and their options. The line command creates single or chained straight lines. The polygon command generates regular polygons with equal sides and angles. The polyline command forms grouped objects that can include arc segments and be manipulated as a whole.
This document provides an overview of AutoCAD training. It defines AutoCAD as CAD software for 2D and 3D design. It describes drafting settings like object snaps and layers. It outlines common commands like modify, zoom, and benefits of using AutoCAD like creating designs quickly and easily modifying them with accuracy. Drafting tools are also explained, along with layer properties and examples of commands like copy, mirror, offset, array, move, rotate, scale, and explode.
This document provides instructions for using basic drawing tools in AutoCAD 2010, including:
- How to set up units and drawing limits for a new file
- How to use the LINE and CIRCLE commands to draw simple geometric shapes
- How to erase unwanted objects
- How to navigate and zoom in the drawing area
The goal is to learn fundamental 2D drawing skills like creating lines and circles that serve as the basic building blocks for technical designs in AutoCAD.
Google SketchUp is a 3D modeling software that allows users to visualize spaces in three dimensions. The document discusses various tools in SketchUp like the select, line, rectangle, and push/pull tools that allow users to create 3D models. It also covers navigation tools like orbit and pan, and measurement tools like the tape measure and dimensions tool. The overall document provides an overview of the basic tools and functions in Google SketchUp.
This document provides an overview of AutoCAD software and its applications. It discusses that AutoCAD has over 6 million users and is the 5th largest software company. It is used widely for 2D drafting and 3D modeling across many industries like engineering, architecture, and construction. The document outlines the tools used for 2D drafting like lines, rectangles, and modifying tools. It also summarizes 3D modeling tools like extrude and presspull. It highlights the demand for AutoCAD skills in the job market and shares that the presenting organization, CADD Centre, has tied up with major companies to provide training and jobs.
Computer Aided Drawing (CAD) involves using computer software to electronically prepare drawings of objects. CAD provides benefits like improved productivity, accuracy, and ability to easily modify designs. Common CAD software includes AutoCAD, which allows users to construct drawings using basic elements like points, lines, and circles. Commands are used to create objects, edit them, and perform other functions. CAD improves the design process.
Tutorial 1 - Introduction to AutoCAD, About & History of AutoCAD, User Interf...Niteshkumar Choudhari
In this presentation of Basic AutoCAD Tutorial series, I have explained about a brief introduction to AutoCAD, it's history and has also explained the user interface of the start screen and workspace screen.
This tutorial is very helpful for beginners. The presentation can also be seen as a lesson which will help the beginners to learn AutoCAD online step by step.
You can visit the link for the video
https://youtu.be/flm_HCdX5fM
This document provides an overview of the AutoCAD software. It discusses the following key points:
- AutoCAD is 2D and 3D computer-aided design software developed by Autodesk. It has been in use since 1982 and is widely used for drafting and modeling.
- The software uses a coordinate system to precisely place drawings. It also features tools like lines, arcs, dimensions, text, and hatching to create technical drawings.
- Users can create blocks to group objects, modify objects with tools, and work between 2D drafting and 3D modeling views. Shortcuts and toolbars help streamline the design process.
- Examples show how AutoCAD allows accurate and flexible 2D
1) The document introduces the basic geometric construction tools in AutoCAD LT 2008, including lines, circles, erase, and zoom commands.
2) It explains how to set up a new drawing by defining units, drawing limits, and using visual references like grids and snapping to lay out geometric shapes.
3) The main content demonstrates how to draw lines using the line command, erase objects, and use grids and snapping to construct regular shapes, before introducing coordinate systems.
This document provides instructions for using various commands in AutoCAD to draw geometric shapes like lines, polygons, rectangles, circles, and ellipses. It explains how to use the line, polygon, rectangle, circle, and ellipse tools on the draw toolbar to create 2D objects by specifying points and parameters like center points, radii, lengths, and angles. The document also covers topics like ortho mode, absolute and relative coordinates, and different ways of defining circles and ellipses using diameters, radii, or intersections.
The document discusses AutoCAD 2021 and provides instructions for its use. It begins with an introduction to AutoCAD as 2D and 3D modeling software developed by Autodesk. It then covers AutoCAD's screen and interface, coordinate systems, toolbars, basic 2D commands, dimensions, 3D modeling commands like extrude and presspull, and benefits such as accurate drawing and easy editing. The document serves as a tutorial for using AutoCAD's various functions.
The document provides an overview of a six-week industrial training project on AutoCAD. It discusses the latest version of AutoCAD, the AutoCAD interface and screen, coordinate systems, toolbars, 2D and 3D commands, modeling, and benefits of using AutoCAD. The training was completed at Hi Tech Point Technologies and covered topics like dimensions, blocks, isometric views, and examples of drawings created during the course using various AutoCAD tools and commands.
Auto Cad basic tutorial for the beginners of AutoCAD. This will help the students. This pdf contains basic commands of AutoCAD. this will surely help you. For the basic and easy AutoCAD commands please click http://studyempire.blogspot.in/2017/06/basic-auto-cad.html
The document is a presentation on basic AutoCAD tools that includes sections on drawing tools, modify tools, layers and dimensions, 3D modeling, and various drawing, editing, and modeling commands in AutoCAD like extrude, revolve, loft, and sweep. It provides information on and examples of tools like lines, circles, offset, trim, chamfer, fillet, dimensions, coordinate systems, and creating 3D objects from 2D profiles. The presentation contains 38 slides with descriptions and illustrations of key AutoCAD concepts and functions.
Intersection OF SOLIDES
THIS SLIDE CONTAINS WHOLE SYLLABUS OF ENGINEERING DRAWING/GRAPHICS. IT IS THE MOST SIMPLE AND INTERACTIVE WAY TO LEARN ENGINEERING DRAWING.SYLLABUS IS RELATED TO rajiv gandhi proudyogiki vishwavidyalaya / rajiv gandhi TECHNICAL UNIVERSITY ,BHOPAL.
Download link: https://www.researchgate.net/publication/318852873_Engineering_Drawing_-_I
DOI: 10.13140/RG.2.2.22512.56328
An engineering drawing is a type of technical drawing, used to fully and clearly define requirements for engineered items, and is usually created in accordance with standardized conventions for layout, nomenclature, interpretation, appearance size, etc.
Its purpose is to accurately and unambiguously capture all the geometric features of a product or a component. The end goal of an engineering drawing is to convey all the required information that will allow a manufacturer to produce that component.
This document provides an introduction to 3D modeling in AutoCAD. It discusses the need for 3D, including making projects more realistic, easy to understand visually, and better for marketing. It also notes benefits like easier remodeling and fewer language barriers. The document outlines different 3D model types like wireframe, surface, and solid models. It describes how to use basic 3D primitives like boxes, cylinders, spheres, cones, pyramids, toruses, and wedges to build solid models. Finally, it wishes the reader the best with AutoCAD 3D.
toolbars and axis , how to import file from autocad to sketchup , basic tools of sketchup , how to extrude walls , how to make a window (quick way ) , how to see dimensions, commands - position camera, walk and look around. All this can be learned in this presentation. A guide for beginners.
di
a.
c
Limits, Zoom, Line, Arc, Circle, Offset, Copy, Move, Trim, Layer, DIM, Mtext
The document provides an introduction to drawing and modifying objects in AutoCAD. It discusses how to start and save a drawing, control views, set units and limits, and use different coordinate systems. It also explains how to draw basic objects like lines, polylines, arcs, circles, and polygons. In addition, it covers modifying objects using commands like offset, array, extend, trim, fillet, chamfer, and lenghten. Dimensioning, text, and hatching tools are also introduced.
This document provides an overview of computer-aided design (CAD) software and the basics of using AutoCAD. It discusses what CAD is, the benefits of using CAD like accuracy and productivity. It then describes the main parts of the AutoCAD interface and basic drawing tools. The document outlines how to set up a drawing by choosing units, scale, and limits. It provides step-by-step instructions for basic drawing techniques like drawing a box using lines and offsets. It also covers modifying drawings using commands like trim, extend, and fillet. Finally, it discusses strategies for laying out a basic floor plan and dividing it into sections. In summary, the document serves as an introduction to the CAD software AutoCAD and provides found
Object reference refers to how one object references another in data management, while geometric associativity refers to how a part's geometry can be changed from the part or drawing. File extensions for sketches, parts, assemblies, and drawings are .sec, .prt, .asm, and .drw respectively. When creating a new part or assembly, it is best to use the copy from option and copy a start part to ensure proper layer setup, views, datum planes, parameters, etc. are inherited. The config.pro file contains configuration options and user macros called map keys that control Pro/Engineer's behavior. A trail file records all user inputs in a Pro/Engineer session and can be retrieved and replayed if work
This document provides an overview of AutoCAD, a commercial computer-aided design software. It discusses the history and applications of AutoCAD, including its use in architecture, engineering, graphic design, 3D printing, fashion, and industrial design. The document also outlines some of AutoCAD's key features such as storage and accessibility of files, 3D viewing capabilities, efficient revisions and modifications, speed, and accuracy of dimensions. Autodesk has developed several vertical programs built on the AutoCAD platform for specialized uses.
The document discusses various commands in AutoCAD including the line, polygon, and polyline commands. It provides details on how to use each command and their options. The line command creates single or chained straight lines. The polygon command generates regular polygons with equal sides and angles. The polyline command forms grouped objects that can include arc segments and be manipulated as a whole.
This document provides an overview of AutoCAD training. It defines AutoCAD as CAD software for 2D and 3D design. It describes drafting settings like object snaps and layers. It outlines common commands like modify, zoom, and benefits of using AutoCAD like creating designs quickly and easily modifying them with accuracy. Drafting tools are also explained, along with layer properties and examples of commands like copy, mirror, offset, array, move, rotate, scale, and explode.
This document provides instructions for using basic drawing tools in AutoCAD 2010, including:
- How to set up units and drawing limits for a new file
- How to use the LINE and CIRCLE commands to draw simple geometric shapes
- How to erase unwanted objects
- How to navigate and zoom in the drawing area
The goal is to learn fundamental 2D drawing skills like creating lines and circles that serve as the basic building blocks for technical designs in AutoCAD.
Google SketchUp is a 3D modeling software that allows users to visualize spaces in three dimensions. The document discusses various tools in SketchUp like the select, line, rectangle, and push/pull tools that allow users to create 3D models. It also covers navigation tools like orbit and pan, and measurement tools like the tape measure and dimensions tool. The overall document provides an overview of the basic tools and functions in Google SketchUp.
This document provides an overview of AutoCAD software and its applications. It discusses that AutoCAD has over 6 million users and is the 5th largest software company. It is used widely for 2D drafting and 3D modeling across many industries like engineering, architecture, and construction. The document outlines the tools used for 2D drafting like lines, rectangles, and modifying tools. It also summarizes 3D modeling tools like extrude and presspull. It highlights the demand for AutoCAD skills in the job market and shares that the presenting organization, CADD Centre, has tied up with major companies to provide training and jobs.
Computer Aided Drawing (CAD) involves using computer software to electronically prepare drawings of objects. CAD provides benefits like improved productivity, accuracy, and ability to easily modify designs. Common CAD software includes AutoCAD, which allows users to construct drawings using basic elements like points, lines, and circles. Commands are used to create objects, edit them, and perform other functions. CAD improves the design process.
Tutorial 1 - Introduction to AutoCAD, About & History of AutoCAD, User Interf...Niteshkumar Choudhari
In this presentation of Basic AutoCAD Tutorial series, I have explained about a brief introduction to AutoCAD, it's history and has also explained the user interface of the start screen and workspace screen.
This tutorial is very helpful for beginners. The presentation can also be seen as a lesson which will help the beginners to learn AutoCAD online step by step.
You can visit the link for the video
https://youtu.be/flm_HCdX5fM
This document provides an overview of the AutoCAD software. It discusses the following key points:
- AutoCAD is 2D and 3D computer-aided design software developed by Autodesk. It has been in use since 1982 and is widely used for drafting and modeling.
- The software uses a coordinate system to precisely place drawings. It also features tools like lines, arcs, dimensions, text, and hatching to create technical drawings.
- Users can create blocks to group objects, modify objects with tools, and work between 2D drafting and 3D modeling views. Shortcuts and toolbars help streamline the design process.
- Examples show how AutoCAD allows accurate and flexible 2D
1) The document introduces the basic geometric construction tools in AutoCAD LT 2008, including lines, circles, erase, and zoom commands.
2) It explains how to set up a new drawing by defining units, drawing limits, and using visual references like grids and snapping to lay out geometric shapes.
3) The main content demonstrates how to draw lines using the line command, erase objects, and use grids and snapping to construct regular shapes, before introducing coordinate systems.
This document provides instructions for using various commands in AutoCAD to draw geometric shapes like lines, polygons, rectangles, circles, and ellipses. It explains how to use the line, polygon, rectangle, circle, and ellipse tools on the draw toolbar to create 2D objects by specifying points and parameters like center points, radii, lengths, and angles. The document also covers topics like ortho mode, absolute and relative coordinates, and different ways of defining circles and ellipses using diameters, radii, or intersections.
AutoCAD is a commercial computer-aided design software used widely around the world. It was first released in 1982 and has since seen 29 generations of updates. The software allows users to design in both 2D and 3D across industries like architecture, engineering, and construction. AutoCAD has various tools and commands to aid in tasks like drafting, 3D modeling, annotation, and sharing designs through tools like layouts and exporting to PDF. It also provides preset workspaces tailored for functions like 3D modeling versus 2D drafting. Users can customize settings, properties, and more to control how they design within the AutoCAD interface.
This document provides an overview of 3D wireframe modeling in AutoCAD 2012. It discusses using the setup wizard to begin a new drawing, creating a wireframe model using the box method to define the 3D boundaries, and constructing the model by placing copies of 2D objects in 3D space and connecting points. The document also mentions repositioning the user coordinate system can aid in 3D modeling, and that constructing wireframes focuses on locating points to define the design.
This document provides an outline and overview of a presentation on AutoCAD. It discusses the latest version of AutoCAD, how the AutoCAD screen works, coordinate systems, toolbars, 2D and 3D commands, isometric views, project work done, and benefits of AutoCAD. Key points covered include the introduction and history of AutoCAD, the AutoCAD interface, how to provide commands, coordinate systems, toolbars like draw and modify, basic 2D drawings created during training, an introduction to 3D modeling and commands like extrude, and benefits like creating designs quickly and accurately.
Tutorial 1 - Computer Aided Design (Final Release)Charling Li
This document provides a tutorial on computer aided design (CAD) using SolidWorks. It begins with an overview of the fundamentals of CAD and engineering drawings. It then demonstrates how to use SolidWorks to model a sensor mount in 3D, including steps to extrude a base, cut features, add screw holes, and cut slots for sensors. The tutorial concludes by challenging readers to add fillets to smooth edges and encourages experimenting with CAD.
This tutorial provides instructions for creating vector graphics in Corel Draw and Adobe Illustrator. It covers topics such as drawing simple lines, creating empty spaces, working with text, and ensuring thin points and lines meet thickness requirements. The document is organized into sections that provide step-by-step explanations of the tools and techniques needed to design graphics that meet criteria for print processes. Readers will learn how to use various shape and text tools, convert objects, add outlines, and test designs using 1.5mm circles to ensure all elements have the necessary thickness.
Autocad designing demo for freshers.
ANY ENGINEERING GRADUATE IN MECHANICAL DISCIPLINE NEED TO KNOW ABOUT AUTOCAD AND ITS USE THEN IT WILL BE HELPFUL FOR HIM/HER
ZENUS INFOTECH INDIA PVT. LTD. is an ISO 9001:2008 certified Engineer’s Training Company in Roorkee& provides training to the B.E./B.TECH/DIPLOMA/MCA/BCA and related field students in 25+ cutting-edge technologies like AutoCAD, Solid-Works, CATIA, REVIT, Pro-E, UG-NX .NET, JAVA, PHP, Android, Linux, oracle Wireless & Telecommunication and many more. Zenus Infotech always works for the benefit of its students and provide high profile job opportunities for its students
This document provides an overview of AutoCAD and its key features. It discusses the benefits of AutoCAD, including its ability to quickly create designs, improve quality over hand drafting, be customized, and teach marketable skills. It describes the AutoCAD interface including the ribbon, command window, workspaces, and how to activate the 2D drafting workspace. It also covers basic functions like zooming, panning, and files in AutoCAD.
The document is a chapter from a textbook on AutoCAD 2013 3D modeling. It discusses 3D wireframe modeling techniques including:
1. Creating a wireframe model using the box method by constructing a base rectangle and copying it to create a 3D box boundary.
2. Using object snaps and relative coordinate input to locate points and construct additional edges of the model.
3. Applying the copy command to efficiently create multiple edges.
4. Using the trim command to precisely shorten objects at selected boundary edges of the model.
This document provides instructions on creating a 3D wireframe model in AutoCAD 2013 using the box method. It first describes wireframe modeling and its advantages and limitations. It then walks through starting a new file in AutoCAD, setting up the appropriate settings, and constructing a basic 3x4.5" rectangular base. Next it describes copying this base at a height of 2.5" to form a 3D box boundary. The box is completed by using the line command to connect the corners. Finally, it discusses object snapping tools to aid in geometric construction.
This document provides instructions for using AutoCAD to create various types of drawings. It begins with an introduction and learning objectives. It then covers using basic AutoCAD commands to start a new drawing and enter commands. It includes instructions on using object snaps for accuracy. The document provides step-by-step directions for creating drawings, including a template, orthographic drawings, isometric drawings, and 3D drawings. It concludes with a summary and FAQs section. The goal is to teach students how to apply basic AutoCAD commands to produce 2D, orthographic, isometric, and 3D drawings.
AutoCAD is a computer-aided drafting software used by engineers to create 2D and 3D designs. It has many tools that allow users to draw various shapes and objects with precision. Users can create floor plans, sections, and elevations of buildings. Objects in AutoCAD can be edited and modified easily. The document provides an introduction and overview of basic AutoCAD tools and functions such as drawing lines, rectangles, circles, and 3D solids. It also discusses the use of different coordinate systems, editing commands, and hatching patterns.
This document provides an overview of the basic parts of the AutoCAD screen interface. It describes 14 key parts of the screen for both 2D and 3D displays, including the application menu, ribbon panels, user coordinate system, model space, view cube, navigation bar, command line, status bar, view controls, visual style controls, file tabs, and mouse cursor. The document numbers and provides images for each part, and gives brief descriptions of their functions in AutoCAD.
Here are 10 key responsibilities of a civil engineer from beginning to end of the construction project to ensure timely completion:
1. Conduct a site survey and soil testing to analyze the land and foundation requirements.
2. Prepare detailed design drawings showing the architectural, structural, utility plans.
3. Obtain necessary permits and approvals from local authorities.
4. Tender the project and evaluate contractor bids to appoint the most suitable one.
5. Supervise the contractor during site preparation and foundation works.
6. Inspect and approve the installation of underground utilities and stormwater systems.
7. Oversee and inspect the building construction as per the approved plans and specifications.
8. Ensure quality
Here are 10 key responsibilities of a civil engineer from beginning to end of the construction project to ensure timely completion:
1. Conduct a site survey and soil investigation to analyze the land and soil conditions.
2. Prepare the site development plan, building layout, and infrastructure plans like roads, parking, drainage, sewage, water supply etc.
3. Develop a work schedule and cost estimate for approval.
4. Obtain necessary permits from the local authorities.
5. Supervise the foundation work, earthwork and infrastructure development.
6. Monitor the quality of materials and construction techniques.
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Autocad 2007 Workbook Tutorial
1. AutoCAD®
2007 Tutorial
First Level: 2D Fundamentals
Text by
Randy H. Shih
Oregon Institute of Technology
MultiMedia CD by
Jack Zecher
Indiana University Purdue University Indianapolis
Schroff Development Corporation
www.schroff.com
www.schroff-europe.com
SDCPUBLICATIONS
MultiMedia CD
by Jack Zecher
An audio/visual
presentation of the
tutorial exercises
INSIDE:
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1-2 AutoCAD®
2007 Tutorial
Introduction
Learning to use a CAD system is similar to learning a new language. It is necessary to
begin with the basic alphabet and learn how to use it 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.
Many of the constructions used in technical designs are based upon two-dimensional
planar geometry. The method and number of operations that are required to accomplish
the constructions 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, and perhaps the most important two, geometric entities that one should
master the skills of creating and modifying. Straight lines and circles are used in almost
all technical designs. In examining the different types of planar geometric entities, the
importance of lines and circles becomes obvious. Triangles and polygons are planar
figures bounded by straight lines. Ellipses and splines can be constructed by connecting
arcs with different radii. As one gains some experience in creating lines and circles,
similar procedures can be applied to create other geometric entities. In this chapter,
the different ways of creating lines and circles in AutoCAD®
2007 are examined.
Starting Up AutoCAD®
2007
1. Select the AutoCAD 2007 option on the Program menu or select the
AutoCAD 2007 icon on the Desktop. Once the program is loaded into
memory, the AutoCAD®
2007 drawing screen will appear on the screen.
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AutoCAD®
Fundamentals 1-3
2. Choose AutoCAD Classic as the initial
workspace.
3. Select Don’t Show me this again and click OK
to continue.
Note that AutoCAD®
automatically assigns generic name, Drawing X, as new
drawings are created. In our example, AutoCAD®
opened the graphics window
using the default system units and assigned the drawing name Drawing1.
4. Close the Tool Palettes by clicking once on
Close button located at the upper right corner
of the window as shown.
5. Close the Sheet Set Manager by clicking once
on the Close button located at the upper right
corner of the window as shown.
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Drawing Units Setup
Every object we construct in a CAD system is measured in units. We should determine
the value of the units within the CAD system before creating the first geometric entities.
1. In the pull-down menus, select:
[Format] [Units]
2. In the Drawing Units dialog box, set the Length Type to Decimal. This will set
the measurement to the default English units, inches.
3. Set the Precision to two digits after the decimal point as shown in the above
figure.
4. Pick OK to exit the Drawing Units dialog box.
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AutoCAD®
Fundamentals 1-5
Drawing Area Setup
Next, we will set up the Drawing Limits; setting the Drawing Limits controls the
extents of the display of the grid. It also serves as a visual reference that marks the
working area. It can also be used to prevent construction outside the grid limits and as a
plot option that defines an area to be plotted/printed. Note that this setting does not limit
the region for geometry construction.
1. In the pull-down menus, select:
[Format] [Drawing Limits]
2. In the command prompt area, near the bottom of the AutoCAD®
drawing
screen, the message “Reset Model Space Limits: Specify lower left corner or
[On/Off] <0.00,0.00>:” is displayed. Press the ENTER key once to accept the
default coordinates <0.00,0.00>.
3. In the command prompt area, the message “Specify upper right corner
<0.00,0.00>:” is displayed. Press the ENTER key once to accept the default
coordinates <12.00,9.00>.
4. On your own, move the graphic cursor near the upper-right comer inside
the drawing area and note that the drawing area is unchanged. (The Drawing
Limits command is used to set the drawing area; but the display will not be
adjusted until a display command is used.)
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5. In the pull-down menus, select:
[View] [Zoom] [All]
The Zoom All command will adjust
the display so that all objects in the
drawing are displayed to be as large as
possible. If no objects are constructed,
the Drawing Limits are used to adjust
the current viewport.
6. Move the graphic cursor near the upper-
right comer inside the drawing area and
note that the display area is updated.
Using the Line Command
1. Click on the Info Palette option in the Help
pull-down menu to activate the Quick Help
option.
2. Move the graphics cursor to the first icon in the Draw toolbar.
This icon is the Line icon. A help-tip box appears next to the
cursor and a brief description of the icon is displayed at the
bottom of the AutoCAD®
drawing screen: “Creates Straight
line segments: LINE.”
3. Select the icon by clicking once with the left-mouse-button,
which will activate the Line command.
Notice a brief explanation of the selected
command is displayed in the Info Palette
window. It is highly recommended that you read
the explanations to gain some insights on the
general procedure of using AutoCAD®
.
4. In the Info Palette window, click To draw
lines to open the AutoCAD®
Help window and
get a more detailed explanation on the procedure.
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AutoCAD®
Fundamentals 1-7
The general procedure to create a line
in AutoCAD®
is displayed in the Info
Palette window.
5. Click on Close button located at the
upper left corner of the Info Palette
window as shown.
6. In the command prompt area, near the bottom of the AutoCAD®
drawing screen,
the message “_line Specify first point:” is displayed. AutoCAD®
expects us to
identify the starting location of a straight line. Move the graphics cursor inside
the graphics window and watch the display of the coordinates of the graphics
cursor at the bottom of the AutoCAD®
drawing screen. The three numbers
represent the location of the cursor in the X, Y, and Z directions. We can treat
the graphics window as if it was a piece of paper and we are using the graphics
cursor as if it were a pencil with which to draw.
We will create a freehand sketch of a five-
point star using the Line command. Do not
be overly concerned with the actual size or
the accuracy of your freehand sketch. This
exercise is to give you a feel for the
AutoCAD®
2007 user interface.
5
3 2
1 4
Coordinates of the location
of the graphics cursor.
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7. We will start at a location near
the bottom of the graphics window.
Left-click once to position the
starting point of our first line.
This will be point 1 of our sketch.
The two numbers, displayed next to
the cursor, represent the current
cursor position. Note that the same
two numbers are also displayed at the
lower left corner of the AutoCAD
main window. The displaying of
tooltips is known as the Dynamic
Input option. Tooltips are displayed
near the cursor, which are
dynamically updated as the cursor
moves.
8. Next move the cursor upward
and toward the right side of
point 1. Notice the rubber-band
line that follows the graphics
cursor in the graphics window.
Left-click again (point 2) and we
have created the
first line of our sketch.
• The two numbers, displayed next
to the cursor, represent the
distance and angle of the current
cursor position relative to the
previously selected location on
the screen. This feature is also
part of the Dynamic Input
option. A more detailed
discussion on how to utilize this
feature is presented in Chapter 3
of this text.
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Fundamentals 1-9
9. Move the cursor to the left of
point 2 and create a horizontal line
roughly about the same length as
the first line on the screen.
10. Repeat the above steps and complete
the freehand sketch by adding three more
lines (from point 3 to point 4, point 4 to
point 5, and then connect to point 5 back
to point 1).
11. Notice that the Line command remains activated even after
we connected the last segment of the line to the starting
point (point 1) of our sketch. Inside the graphics window,
click once with the right-mouse-button and a popup menu
appears on the screen.
12. Select Enter with the left-mouse-button to end the Line
command. (This is equivalent to hitting the [ENTER] key
on the keyboard.)
13. On your own, move the cursor near point 2 and point 3, and estimate the length of
the horizontal line by watching the displayed coordinates for each point at the
bottom of the screen.
5
3 2
1 4
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Visual Reference
The method we just used to create the freehand sketch is known as the interactive
method, where we use the cursor to specify locations on the screen. This method is
perhaps the fastest way to specify locations on the screen. However, it is rather difficult
to try to create a line of a specific length by watching the displayed coordinates. It would
be helpful to know what one inch or one meter looks like on the screen while we are
creating entities. AutoCAD®
2007 provides us with many tools to aid the construction
of our designs. We will use the GRID and SNAP options to get a visual reference as to
the size of objects and learn to restrict the movement of the cursor to a set increment on
the screen.
The Status Bar area is located at the bottom of the AutoCAD®
drawing screen. The words
SNAP, GRID, ORTHO, POLAR, OSNAP, OTRACK, DUCS, LWT and MODEL appearing
to the right of the coordinates are buttons that we can left-click to turn these special
options ON and OFF. When the corresponding button is highlighted, the specific option
is turned ON. These buttons act as toggle switches; each click of the button will toggle
the option ON or OFF. Using the buttons is a quick and easy way to make changes to
these drawing aid options. We can toggle the options on and off in the middle of another
command.
GRID On
1. Left-click the GRID button in the Status Bar to turn On the GRID option. (Notice
in the command prompt area, the message “<Grid on>” is also displayed.)
2. Move the cursor inside the graphics window, and estimate the distance in between
the grid points by watching the coordinates display at the bottom of the screen.
Option Buttons
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AutoCAD®
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The GRID option creates a pattern of dots
that extends over an area on the screen.
Using the grid is similar to placing a sheet
of grid paper under a drawing. The grid
helps you align objects and visualize the
distance between them. The grid is not
displayed in the plotted drawing. The
default grid spacing, which means the
distance in between two dots on the screen,
is 0.5 inches. We can see that the sketched
horizontal line in the sketch is about 4.0
inches long.
DYN Off
1. Left-click the DYN button in the Status Bar to turn Off the Dynamic
Input option.
The DYN button allows the quick toggle of the Dynamic Input option.
We will switch off this option to discuss the basic input options available in
AutoCAD®
. A more detailed discussion on this feature is presented in Chapter
three.
SNAP On
1. Left-click the SNAP button in the Status Bar to turn On the SNAP option.
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1-12 AutoCAD®
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2. Move the cursor inside the graphics window, and move the cursor diagonally
on the screen. Observe the movement of the cursor and watch the
coordinates display at the bottom of the screen.
The SNAP option controls an invisible rectangular grid that restricts cursor
movement to specified intervals. When SNAP mode is on, the screen cursor and
all input coordinates are snapped to the nearest point on the grid. The default snap
interval is 0.5 inches, and aligned to the grid points on the screen.
3. Click on the Line icon in the Draw toolbar. In the command
prompt area, the message “_line Specify first point:” is
displayed.
4. On your own, create another sketch of the five-point star with the GRID and
SNAP options switched ON.
5. Use the right-mouse-button and select Enter in the popup
menu to end the Line command if you have not done so.
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AutoCAD®
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Using the ERASER Command
One of the advantages of using a CAD system is the ability to remove entities without
leaving any marks. We will erase two of the lines using the Erase command.
1. Pick Erase in the Modify toolbar. (The icon is
the first icon in the Modify toolbar. The icon is
a picture of an eraser at the end of a pencil.)
The message “Select objects” is displayed in
the command prompt area and AutoCAD®
awaits
us to select the objects to erase.
2. Left-click the SNAP button on the Status Bar to turn off the SNAP option so
that we can more easily move the cursor on top of objects. We can toggle the
Status Bar options ON or OFF in the middle of another command.
3. Select any two lines on the screen; the selected lines are displayed as dashed
lines as shown in the figure below.
4. Right-mouse-click once to accept the selections. The selected two lines are
erased.
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Repeat the Last Command
1. Inside the graphics window, click once with the right-
mouse-button to bring up the popup option menu.
2. Pick Repeat Erase, with the left-mouse-button, in the
popup menu to repeat the last command. Notice the other
options available in the popup menu.
AutoCAD®
2007 offers many options to accomplish the
same task. Throughout this text, we will emphasize the
use of the AutoCAD Heads-up DesignTM
interface,
which means we focus on the screen, not on the
keyboard.
3. Move the cursor to a location that is above and toward the left side of the
entities on the screen. Left-mouse-click once to start a corner of a rubber-band
window.
4. Move the cursor toward the right and below the entities, and then left-mouse-
click to enclose all the entities inside the selection window. Notice all entities
that are inside the window are selected.
5. Inside the graphics window, right-mouse-click once to proceed with erasing
the selected entities.
On your own, create a free-hand sketch of your choice using the Line command.
Experiment with using the different commands we have discussed so far. Also try
switching the GRID and SNAP options ON and OFF in the middle of a command.
First corner
Second corner
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AutoCAD®
Fundamentals 1-15
The CAD Database and the User Coordinate System
Designs and drawings created in a CAD system are
usually defined and stored using sets of points in what is
called world space. In most CAD systems, the world
space is defined using a three-dimensional Cartesian
coordinate system. Three mutually perpendicular axes,
usually referred to as the X-, Y-, and Z-axes, define this
system. The intersection of the three coordinate axes
forms a point called the origin. Any point in world space
can then be defined as the distance from the origin in the
X-, Y- and Z- directions. In most CAD systems, the
directions of the arrows shown on the axes identify the
positive sides of the coordinates.
A CAD file, which is the electronic version of the design, contains data that describe
the entities created in the CAD system. Information such as the coordinate values in
world space for all endpoints, center points, etc., along with the descriptions of the
types of entities are all stored in the file. Knowing that AutoCAD stores designs by
keeping coordinate data helps us understand the inputs required to create entities.
The icon near the bottom left corner of the default AutoCAD®
graphics window
shows the positive X-direction and positive Y-direction of the coordinate system
that is active. In AutoCAD®
, the coordinate system that is used to create entities is
called the user coordinate system (UCS). By default, the user coordinate system
is aligned to the world coordinate system (WCS). The world coordinate system is
a coordinate system used by AutoCAD®
as the basis for defining all objects and other
coordinate systems defined by the users. We can think of the origin of the world
coordinate system as a fixed point being used as a reference for all measurements.
The default orientation of the Z-axis can be considered as positive values in front of
the monitor and negative values inside the monitor.
3D UCS icon
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Changing to the 2D UCS Icon Display
In AutoCAD®
2007, the UCS icon is displayed in various ways to help us visualize
the orientation of the drawing plane.
1. In the pull-down menus, select:
[View] [Display]
[UCS Icon] [Properties]
2. In the UCS icon style section, switch
to the 2D option as shown.
3. Click OK to accept the settings.
Note the W symbol in the UCS icon
indicates the UCS is aligned to the world
coordinate system.
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AutoCAD®
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Cartesian and Polar Coordinate Systems
In a two-dimensional space, a point can be represented using different coordinate
systems. The point can be located, using a Cartesian coordinate system, as X and
Y units away from the origin. The same point can also be located using the polar
coordinate system, as r and θ units away from the origin.
For planar geometry, the polar coordinate system is very useful for certain
applications. In the polar coordinate system, points are defined in terms of a radial
distance, r, from the origin and an angle θ between the direction of r and the positive
X axis. The default system for measuring angles in AutoCAD®
2007 defines positive
angular values as counter-clockwise from the positive X-axis.
Absolute and Relative Coordinates
AutoCAD®
2007 also allows us to use absolute
and relative coordinates to quickly construct objects.
Absolute coordinate values are measured from the
current coordinate system's origin point. Relative
coordinate values are specified in relation to previous
coordinates.
Note that the coordinate display area can also be
used as a toggle switch; each left-mouse-click will
toggle the coordinate display on or off.
In AutoCAD®
2007, the absolute coordinates and the relative coordinates can be used
in conjunction with the Cartesian and polar coordinate systems. By default, AutoCAD®
expects us to enter values in absolute Cartesian coordinates, distances measured from the
current coordinate system's origin point. We can switch to using the relative coordinates
by using the @ symbol. The @ symbol is used as the relative coordinates specifier,
which means that we can specify the position of a point in relation to the previous point.
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Defining Positions
In AutoCAD®
, there are five methods for specifying the locations of points when we
create planar geometric entities.
Interactive method: Use the cursor to select on the screen.
Absolute coordinates (Format: X,Y): Type the X and Y coordinates to locate the
point on the current coordinate system relative to the origin.
Relative rectangular coordinates (Format: @X,Y): Type the X and Y
coordinates relative to the last point.
Relative polar coordinates (Format: @Distance<angle): Type a distance and
angle relative to the last point.
Direct Distance entry technique: Specify a second point by first moving the
cursor to indicate direction and then entering a distance.
The Guide Plate
We will next create a mechanical design using the different coordinate entry methods.
• Use the Erase command and erase all entities on the screen before
proceeding to the next section.
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• The rule for creating CAD designs and drawings is that they should be created
at full size using real-world units. The CAD database contains all the
definitions of the geometric entities and the design is considered as a virtual,
full-sized object. Only when a printer or plotter transfers the CAD design to
paper is the design scaled to fit on a sheet. The tedious task of determining a
scale factor so that the design will fit on a sheet of paper is taken care of by
the CAD system. This allows the designers and CAD operators to concentrate
their attention on the more important issues – the design.
1. Select the Line command icon in the Draw toolbar. In the
command prompt area, near the bottom of the AutoCAD®
graphics window, the message “_line Specify first point:” is
displayed. AutoCAD®
expects us to identify the starting
location of a straight line.
2. In the command prompt area, we will locate the starting point
of our design at the origin of the world coordinate system.
Command: _line Specify first point: 0,0 [ENTER]
(Type 0,0 in the command prompt area and press the
[ENTER] key once.)
3. We will create a horizontal line by entering the absolute coordinates of the
second point.
Specify next point or [Undo]: 5.5,0 [ENTER]
(5.5,0)
(0,0)
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• The line we created is aligned to the bottom edge of the drawing window. Let
us adjust the view of the line by using the Pan Realtime command.
4. Click on the Pan Realtime icon in the
Standard toolbar area. The icon is the picture of
a hand with four arrows.
The Pan command enables us to move the view
to a different position. This function acts as if
you are using a video camera.
5. Move the cursor, which appears as a hand inside the graphics window, near
the center of the drawing window, then push down the left-mouse-button and
drag the display toward the right and top side until we can see the sketched
line. (Notice the scroll bars can also be used to adjust viewing of the display.)
6. Press the [Esc] key to exit the Pan command. Notice that AutoCAD®
goes
back to the Line command.
7. We will create a vertical line by using the relative rectangular coordinates
entry method, relative to the last point we specified:
Specify next point or [Close/Undo]: @0,2.5 [ENTER]
8. We can mix any of the entry methods in positioning the locations of the
endpoints. Move the cursor to the Status Bar area, and turn ON the GRID and
SNAP options.
9. Create the next line by picking the location, world coordinates
(8,2.5), on the screen.
10. We will next use the relative polar coordinates entry method, relative to the
last point we specified:
Specify next point or [Close/Undo]: @3<90 [ENTER]
(Distance is 3 inches with an angle of 90 degrees.)
SNAP and GRID On
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11. Using the relative rectangular
coordinates entry method to
create the next line, we can
imagine a reference coordinate
system aligned at the previous
point. Coordinates are measured
along the two reference axes.
Specify next point or [Close/Undo]:
@-1.5,1 [ENTER]
(-1.5 and 1 inches are measured
relative to the reference point.)
12. Move the cursor directly to the left of the last
point and use the direct distance entry technique
by entering 6.5 [ENTER].
13. For the last segment of the sketch, we can use the Close
option to connect back to the starting point. Inside the
graphics window, right-mouse-click and a popup menu
appears on the screen.
14. Select Close with the left-mouse-button to connect back
to the starting point and end the Line command.
Reference Coordinate System
aligned at the previous point
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Creating Circles
The menus and toolbars in AutoCAD®
2007 are designed to allow the CAD operators to
quickly activate the desired commands. Besides using the Draw toolbar, we can also
select the different Draw commands through the pull-down menus.
1. In the pull-down menus, select:
[Draw] [Circle] [Center, Diameter]
Notice the different options available under the circle submenu:
• Center Point: Draws a circle based on a center point and a diameter or a radius.
• 2 Points: Draws a circle based on two endpoints of the diameter.
• 3 Points: Draws a circle based on three points on the circumference.
• TTR–Tangent, Tangent, Radius: Draws a circle with a specified radius
tangent to two objects.
• TTT–Tangent, Tangent, Tangent: Draws a circle tangent to three objects.
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2. In the command prompt area, the message “Specify center point for circle or
[3P/2P/Ttr (tan tan radius)]:” is displayed. AutoCAD expects us to identify
the location of a point or enter an option. We can use any of the four
coordinate entry methods to identify the desired location. We will enter the
world coordinates (2.5,3) as the center point for the first circle.
Specify center point for circle or [3P/2P/Ttr (tan tan radius)]: 2.5,3 [ENTER]
3. In the command prompt area, the message “Specify diameter of circle:” is
displayed.
Specify diameter of circle: 2.5 [ENTER]
4. Inside the graphics window, right-mouse-
click to bring up the popup option menu.
5. Pick Repeat Center, Diameter with the
left-mouse-button in the popup menu to
repeat the last command.
6. Using the relative rectangular coordinates
entry method, relative to the center-point
coordinates of the first circle, we specify the
location as (2.5,2).
Specify center point for circle or [3P/2P/Ttr (tan tan radius)]: @2.5,2 [ENTER]
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7. In the command prompt area, the message “Specify Diameter of circle:
<2.50>” is displayed. The default option for the Circle command in
AutoCAD®
is to specify the radius and the last radius used is also displayed
in brackets.
Specify Diameter of circle<2.50>: 1.5 [ENTER]
Saving the CAD Design
1. In the pull-down menus, select:
[File] [Save As]
Note the command can also be activated
with quick-key combination of
[Ctrl]+[Shift]+[S].
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2. In the Save Drawing As dialog box, select the folder in which you want to
store the CAD file and enter GuidePlate in the File name box.
3. Pick Save in the Save Drawing As dialog box to accept the selections and
save the file.
Exit AutoCAD®
2007
To exit AutoCAD®
2007, select File then choose Exit from
the pull-down menu or type QUIT at the command prompt.
Note the command can also be activated with quick-key
combination of [Ctrl]+[Q].
Enter GuidePlate
Select the folder
to store the file.
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Questions:
1. What are the advantages and disadvantages of using CAD systems to create
engineering drawings?
2. How do the GRID and SNAP options assist us in sketching?
3. List and describe the different coordinate entry methods available in AutoCAD®
?
4. List and describe two types of coordinate systems commonly used for planar
geometry.
5. Identify the following commands:
(a)
(b)
(c)
(d)
Tan, Tan, Radius