AUTO CADD PPT
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The document provides an overview of AutoCAD and computer-aided design (CAD) drafting capabilities. It discusses key features of AutoCAD including 2D and 3D modeling, file formats, workspace areas, and common drafting tools. Drafting in AutoCAD involves using lines, circles, arcs, and other basic shapes to accurately depict designs that can be used for manufacturing or construction plans. Parameters can also be set in AutoCAD to make drawings dynamically adjustable.
AUTO CADD PPT
- 1. COMPUTER INTEGRATED DESIGN AND MANUFACTURING INTRODUCTION TO AUTOCAD AND CONCEPT OF CAD AS DRAFTING AND DESIGNING FACILITY Anurag Tewari M.TECH (I & PE)
- 2. OVERVIEW • AutoCAD is software for drafting and design, formally known as CAD software. • Autodesk introduced and developed AutoCAD in December, 1982. • AutoCAD has been very widely adopted throughout the world for its highly developed two dimensional drafting capabilities. It also has three dimensional graphics and modelling capabilities. • AutoCAD is a principal component of Mechanical Desktop (solid modelling software) and works with 3D Studio (rendering and animation software), both of which are produced by Autodesk. • AutoCAD drawing files can be easily imported into many other software packages. • AutoCAD is a software application used in architecture, construction and manufacturing to assist in the preparation of blueprints and other engineering plans.
- 3. ABOUT AUTOCAD • The first release of the software used only primitive entities such as polygons, circles, lines, arcs and text to construct complex objects. • DWG (drawing) is the native file format . • AutoCAD screen contains two parts: graphical screen and textual command. • It can import and export different formats (DXF, IGES) and export different formats (DXF, IGES) • There are two main domains within an Autocad, MODEL space and PAPER space. • MODEL space contains all drawing or 'modelling' is done in here and it is the main ‘modelling’ area in Autocad. • PAPER space is an area used to print the drawing created in the model space. It is actually a blank sheet in which a real object drawn in can be represented as a printable drawing in a proper scale.
- 4. GRAPHIC WINDOW The five primary areas of the AutoCAD graphics window are as follows: 1. MenuBar -- AutoCAD's pull-down menus are accessed through the menu bar. 2. StatusBar -- The status bar provides status information including color, layer, coordinate display, and so on. 3. Drawing Area -- The center area, called the drawing area, is the area in which you draw. 4. Screen Menu -- The screen menu was AutoCAD's original menu interface, but is now primarily used for option selection. 5. Command Line -- The command line is the area where you enter commands and options from the keyboard. The command line prompts you for input and provides status on the results of AutoCAD commands.
- 5. DISTINCT FEATURES OF AUTOCAD • Smart Dimensioning • 3D free-form design tools • Text Frame • Status bar enhancement • Resizable dialogue boxes • Dynamic blocks • Enhanced PDFs
- 6. FEATURES OF AUTOCAD 2017 • Autodesk desktop app • Import PDF file • Sharing drawings • Making centreline and centre marks seamlessly • Making 3d print ready file • Migrate custom settings • Enhanced graphics
- 7. USES • As an architectural planning tool • As an Engineering Drafting Tool • As a Graphic Design Tool • As an Industrial Design Tool • In 3D Printing • In the Fashion Industry • Ship Design • Civil 3D for environmental engineering • Wiring diagrams, P&IDs, piping diagrams, store planning layouts etc.
- 8. DRAFTING • Drafting is essentially drawing a picture, whether in 2D or 3D, and providing dimensions and notes. • It is used to create and edit 2D technical drawings and the draftsman convert the 2D drawings to make sense "technically". • Multiple angles and views to depict the association of components and systems. • Drafting is done to prepare a visual depiction of a product to be constructed and uses CAD images to create plans to build and manufacture everything from buildings to toys to spacecraft. • It should be able to visually communicate concepts and be very detailed in the drawings and sketches • Drafters use CAD software to produce detailed drawings that include building dimensions, required materials and construction procedures. • Drafters often consult with co-workers on design and layouts. • In some cases, drafters coordinate with builders to establish requirements and understand design concepts. When deficiencies occur, drafters revise designs to eliminate problems.
- 9. DRAFTER • Professionals who use AutoCAD are often referred to as drafters. • Drafters work in a number of specialties and the five most common specialization areas are as follows: mechanical, architectural, civil, electrical, and electronics. • Mechanical drafters prepare plans for machinery and mechanical devices. • Architectural drafters draw up plans for residential and commercial buildings. • Civil drafters draw up plans for use in the design and building of roadways, bridges, sewer systems, and other major projects. • Electrical drafters work with electricians to prepare diagrams of wiring electrical system layouts. • Electronics drafters also prepare wiring diagrams for use in the making, installing, and repairing of electronic gadgets
- 10. BENEFITS OF DRAFTING • Increase productivity and accelerate the mechanics of drafting a design. • Eliminating the need for stencils and technical drawing instruments. • Develop site plans, refine concepts, sketch technical drawings and share your ideas. • Customize templates and drawings more precisely. • Collaborate with colleagues and clients using other compatible Autodesk software products. • Create, send, and receive compatible data files when using genuine DWG file formats to collaborate with clients and associates. • All AutoCAD products support the DWG file format, so we can easily review 2D drawings in 3D programs.
- 11. BASIC AUTOCAD DRAFTING FUNCTIONS • Lines, circles, arcs, polylines, rectangles, polygons, splines, points, texts, and area hatching. • Moving, rotating, copying, mirroring, and erasing. • Viewing ,Zooming and panning, multiple viewport generation, user coordinate system. • Linear dimensions, angular dimensions, radius dimensions, diameter dimensions, baseline dimensions, continuous dimensions, leaders, and size and geometric tolerances. • Wireframe images, hidden line images, shading images, and rendering mages. • Layers, colors, linetypes, groups, blocks, attributes, and references. • Plotting. • Generation of PostScript files.
- 12. DRAWING AND DRAFTING TOOLS • Object snap tracking • Polar tracking • Multifunctional grip • Array enhancement • Qselect • Layer and object properties • Hide and isolate • Object selection cycling
- 13. DESIGNING • Design is the next step to drafting. • Designing is sketch and it is an analysis to justify the selection of component sizes based on stress, deflection, fatigue, etc. • It determines the system dynamic response and assures that criteria are met. • A designer conceives an idea and follows through with the actual design keeping in mind form and function. The designer imparts knowledge and understanding to the process. • Design involves conception and 3D modelling • Using Computer Aided Design, a designer comes up with ideas and brings them to reality.
- 14. DESIRABLE FEATURES OF AUTOCAD AND SETTING PARAMETERS
- 15. General features • AutoCAD enable its users to draw anything that they could imagine. • It presents numerous ways in which users can do the similar tasks. • Users of AutoCAD can do anything from modifying the program’s menus to creating custom applications using AutoCAD programming language. • It offers high level of speed, accuracy and ease of use. With this accuracy one can create a computer model of earth and include the details down to sub micron level.
- 16. • If you want to include a photograph in your drawing then you just have to copy the image and paste it into the AutoCAD. • With windows, you have a freedom to arrange AutoCAD’s screen by clicking and dragging its components. • It also makes use of World Wide Web (www). You can open, save drawings across the internet, collaborate with others and publish electronic print of your drawing. • It also provide customization option through VBA.
- 18. CAD features for design and documentation The new version of AutoCAD is the 2017 version which has been updated by the Autodesk with six new features and they are keep on adding new features to the AutoCAD everyday.
- 19. 1. PDF to DWG • This is probably the most awaited feature in AutoCAD, starting with AutoCAD 2017 you can import drawings from PDF format to AutoCAD as geometry and text objects. • So far there were many third party tools which in my opinion were very buggy and inefficient in doing the so called task of converting PDF to DWG drawings hence addition of this feature is a great enhancement to AutoCAD features. • To use this feature type PDFIMPORT on command line and press enter then select file from command line and locate PDF file from your computer and click on open. Now an Import PDF window will open select all required options from this window and click on OK.
- 21. 2. Sharing drawings • You can now directly share files with users who don’t even have AutoCAD using A360 cloud account and all they need is a web browser for accessing shared drawing. • To share a drawing make sure you are logged into your Autodesk 360 cloud account and your drawing is saved. • Click on application button on top left of AutoCAD window select publish then design views from options. Select one of the two options from next notification window and wait for the drawing to upload and process for viewing. • Once your drawing is ready for viewing you will get a bubble notification in your AutoCAD window click on it to open the drawing in web browser. Click on get link icon on top right corner of A360 viewer and copy the link. You can now share this link with users and end user will not even require AutoCAD software or A360 account for viewing this drawing.
- 23. 3. Centre lines and centre marks • With new AutoCAD 2017 you can easily add centre lines and centre marks to the geometry. Simply type the command CENTREMARK and click on circular object to create the centre mark, you can use this command to make a centre mark on circle, arc and fillet. • In order to create a centre line between objects such as two parallel or intersecting lines type command CENTRELINE press enter and select both parallel or intersecting lines. A centre line will be created in between both the lines. • These centre lines and centre mark will remain associated with the objects with reference to which they are created and when you change position of those original objects then these centre line and centre mark will change itself to reflect new updated position.
- 25. 4. Making 3D print ready file • With new Autodesk print studio you can make a 3D print ready file and directly print it in almost all types of 3D printers. This 3D printing tool is provided by spark technologies and it is available for 64 bit machines only. • To use this tool go to AutoCAD 3D modelling workspace and select print studio tool from 3D print panel of output tab. If you are using this tool for the first time then a prompt will appear from where you can download this tool. • Once downloaded and installed click on print studio tool again and click on watertight or closed mesh object from your drawing which you want to use for 3D printing. • This model will open in new Print studio window where you can prepare this model for 3D printing. If you are not yet ready to print this drawing then you can export it as STL file which can be used later.
- 27. 5. Migrate custom settings • The new custom settings migration setting window is more visually appealing and has easy to understand interface.
- 28. 6. Graphics • In the previous releases of AutoCAD, the preview of objects as they are being created, moved or copied could appear jagged. • In AutoCAD 2017, line smoothing is supported during the preview, so objects appear just as they will appear after the operation is completed.
- 31. • With the use of numerical parameters, you can change your drawing by adjusting values instead of working directly with linework. This is where the idea of parameter driven programs such as Revit comes from.
- 32. • Point-Defines a point (XY coordinate) on the geometry. Move or stretch from that point. • Linear-Defines a linear distance. Specify a start point and an endpoint. Move, scale, stretch, or array along the line between the two points. • Polar-Defines a linear distance and displays an angle. Specify a start point and an endpoint. Move, scale, stretch, polar stretch (stretch at an angle), or array along the line between two points and at a specified angle.
- 33. • XY-Defines X and Y distances. Specify a start point and an endpoint at an angle, and the parameter separately labels the X and Y distances. Move, scale, stretch, or array at specified X and Y distance. • Rotation-Defines a base point, radius, and default rotation angle . Rotate around the base point. • Flip-Defines a reflection line. Specify the base point and endpoint of the line. Flipping is like mirroring. • Visibility-Controls the visibility of components in the block. No action is required, but you need to define the visibility states and which components are visible or invisible in each state.
- 34. • Lookup-Defines preset values that you specify. You then create labels for each value. When you edit the block in a drawing, choose one of the labels from the list to modify the block according to the values. • Base point-Defines a base point for the Dynamic Block. Use this parameter when you want a base point to maintain its relationship to the block as other parts of the block are modified. For example, use a base point parameter if you want the base point of the block to always remain at the lower-left corner of a rectangle, even if that corner is stretched to a new position.
- 36. Drawing features in Auto Cad
- 37. Different types of Drawing features • Line • Circle • Arc • Pline • Spline • Array
- 38. LINE • Line : It is used to create single straight line segment or series of line segments. • Select the line option from the home bar or you can give direct command for starting your drawing. COMMANDS o LINE o LINETYPE o LINEWEIGHT
- 39. CIRCLE • It is a simple closed shape, as a series of points in a plane. • Select the circle option form the home bar or give direct command to create a circle. Various options to drawing a circle : o Center, Radius o2 point o 3 point o Tangent, Tangent, Tangent Command : CIRCLE
- 40. ARC • Arc can be drawn by specify combination of center, endpoint, start point, radius, angle, chord length, and direction values. • Arcs are drawn in a counterclockwise direction by default. Hold down the Ctrl key as you drag to draw in a clockwise direction. Various options to drawing a arc : o3-point oStart, center, end oContinuous command: ARC
- 41. PLINE • PLINE (Command) Creates a 2D polyline, a single object that is composed of line and arc segments. A 2D polyline is a connected sequence of segments created as a single planar object. You can create straight line segments, arc segments, or a combination of the two.
- 42. SPLINE • A spline is a smooth curve that passes through or near a set of points that influence the shape of the curve.
- 43. ARRAY • The ARRAY Command allows you to create duplicates of existing objects in a rectangular or circle (polar) pattern.
- 44. EXAMPLE
- 45. Thanking you