Advantages and disadvantages of AutoCAD.

Advantages of AutoCAD:
1. A mid range Software
2. User Friendly
3. Fulfills most of the professional needs of a mechanical engineer
4. Lots of Time saving (but not always)
5. Paperless Environment
6. Ease of Accuracy — e.g. joining of lines head to head is not possible manually with desired accuracy
7. Easy to edit
8. Ease of Repetition / Addition
9. Reproduction of Drawing is easy, rapid and reliable in terms of dimensional accuracy and precision.
10. 2D and 3D production of drawings is very easy.
11. Zoom Command Facility allows us to see the minute details on larger scale view.
12. A facility of Modeling and making Parts library is available.
13. Parent – Child relationship allows multiple editing in single command, means if one part is edited all other linked parts are auto edited
14. Layers option allows us to hide or show some specific details of a complex assembly drawing for clear understanding.
15. There is no limitation of a Drawing size. You can draw a 2 light years long line through proper scale stetting.
16. Auto scale option is available. Full scale drawings can be formed.
17. Geometrical relationship can make quick mathematical operations easy, e. g. you can make an inscribed circle using dimensions of the triangle or polygon etc.
18. Mass, Area, Volume, Center of Gravity can be calculated
19. Auto Dimensioning – easy, accurate and rapidly done within no time.
20. Dimension Standards are strictly followed
21. Copy, scale, Move, Stretch, rotate, Pattern commands make the task simple and easy
22. Draw Guiding through Osnap, Ortho etc.
23. Direct and Quick Drawing of Symmetrical objects. e.g circle, ellipse, polygon rectangles and triangles etc.
24. Geometrical Relationships are possible. Like two parallel lines, Tangent lines, perpendicular lines etc.
25. Fixed line thickness throughout the drawing.—– remember that, ”by default, the line thickness of auto Cad is zero”
26. Fill, Hatch, Section lines, Chamfer and fillet commands make the software a blessing as these operations are very difficult in manual drafting.
27. Adding Text – Lettering – is a big facility
28. Images can be imported and traced out for digitization of conventional diagrams and drawings.

Disadvantages of Using AutoCAD:
1. Expensive equipment is required. like Computer, Plotter, big screen monitor etc.
2. Registered software is expensive and it requires a heavy re-occurring annual fee.
3. Continuous Updating of the equipment and software is needed.
4. Electricity is mandatory for running the equipment.
5. Piracy and hacking threats are always there when you use internet for data transfer or even storage of data on a computer which is connected to internet.
6. Special computer Skills are required.
7. Proper Maintenance, supervision and administration is required for computer networking.

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Draw a line using polar co-ordinate system in AutoCAD

1. Open AutoCAD software from desktop short cut or from start menu. 2. Now type "LINE" and press ENTER KEY. Then enter 0,0 as first point of the line. 3. Then type 5<30 as second point of the line. This "<" symbol is used for the line point moves to 30 degrees from positive x-axis. 4. Now again type 2.45<270 as next point of the line. 5. After generating the line press <Esc> key from key board to exit from line command. The lines shown like below image. BACK to Day-1 Lessions CLICK HERE to get CAD HOME Work help or project help (paid)

How to draw a line using cartesian coordinate system on graph paper?

The Cartesian coordinate system in two dimensions (also called a rectangular coordinate system) is defined by an ordered pair of perpendicular lines (axes), a single unit of length for both axes and an orientation for each axis. The lines are commonly referred to as the x- and y-axes where the x-axis is horizontal and the y-axis is vertical. The point where the axes meet is taken as the origin for both, thus turning each axis into a number line. For a given point P, a line is drawn through P perpendicular to the x-axis to meet it at X and a second line is drawn through P perpendicular to the y-axis to meet it at Y. The coordinates of P are then X and Y interpreted as numbers x and y on the corresponding number lines. The coordinates are written as an ordered pair (x,y). BACK to Day-1 Lessions CLICK HERE to get CAD HOME Work help or project help (paid)

How to use Cartesian Coordinates in AutoCAD

Cartesian co-ordinate system is used to represent the X and Y coordinate values. We can draw elements by using a Cartesian coordinate system in AutoCAD. Generally in Cartesian coordinate system the x and y coordinate values are separated with comma (“,”). 1. See the two-dimensional cartesian coordinate grid system in the below image. 2. Generally co-ordinate system represents with its x and y co-ordinate values enclose with brackets. The first value in the enclosed brackets is for X value and the second value in the enclosed brackets if for Y value. The below image represents the line from (2,1) to (4,5). Syn: Type "LINE" and press ENTER KEY from key board. (the data we typed is inserted in command window). Then type 2,1 and press ENTER KEY. Then again type 4,5 and press ENTER KEY. Press <Esc> (escape) key to exit from line command. 3. The bellow line is drawn from (-2,-1) to (0,0). Syn: Type "LINE" and press ENTER KEY from key board. (th...

The procedure to Activate Viewport in AutoCAD

In AutoCAD we can add number of layouts depending upon the print scale of drawings. Basically model space is used to create the drawings and other layout spaces are used to see the real time output drawings. We need to set the layout spaces according to printing size of the document. 1. a) Open AutoCAD application from desktop shortcut menu. b) Select new document icon from quick access toolbar and open "ansi-a" template. c) Now double click on center of the ANSI A Tool box layout with mouse left button. After double clicking with left mouse button see the layout outline. In this layout the model space objects appeared. We can draw or scale the elements in this layout also. See the image bellow. 2. a) Whenever we move the cursor inside the dark lined layout, the cursor transforms like cross hair (looks like plus symbol shape). Whenever we move the cursor after this dark lined layout the cursor transforms its shape like arrow symbol. See the bellow two image...

What is AutoCAD? What is the versions and uses of AutoCAD?

What is AutoCAD? AutoCAD is a computer-aided design (CAD) program used for 2-D and 3-D design and drafting. This application was developed and marketed by Autodesk. Versions of AutoCAD? Release no. Versions Released Date Description 1 AutoCAD 1.0 Dec-82 It was the first initial release of AutoCAD. It was demonstrated at the Comdex (computer expo trade show). The file format DWG R1.0 was introduced during the time of release. 2 AutoCAD 1.2 Apr-83 It was released after the first initial version. The file format DWG R1.2 was introduced. 3 AutoCAD 1.3 Aug-83 The file format DWG R1.3 was introduced. This version introduced add on features such as configuration, justified text, adjustment of alignment and plot origin, grid spacing, large plotter, standardized color numbers, and addition of header information in the DXF file. 4 AutoCAD 1.4 Oct-83 Some of the features were...

Procedure to add a new plotter in AutoCAD

1. a)Open AutoCAD application from desktop shortcut icon or start menu. b)Click on “Open icon” and select “db_file” file from database files then click on “Open” button to open the document. 2.Type “PLOTTERMANAGER” and press ENTER KEY. 3.Double click on “Add A-Plotter Wizard” to view “Add plotter” dialog box. Click on “Next” button in “Add Plotter – Introduction Page” dialog box. 4.Select “My Computer” radio button then press Next button. 5.Select “Hewlett-Packard” from Manufactures list and select “Draftpro (7570A)” from list of models. Then click on “Next” button. 6.We can import printer by clicking on “Import File” button or click next to see the default printers. 7.Click on “Plot to File” radio button and then Click on “Next” button. 8.Accept the default name “Draftpro (7570A)” then click on Finish button. 9.We can change the plotter configuration by clicking on “Edit Plotter configuration” button. 10.Type “PLOT” and press ENTER KEY to view the “Plot” dialog box. We can...

How to use Undo and Redo in AutoCAD

1. a)Open AutoCAD application from desktop shortcut menu. b)Select new document icon from quick access toolbar and open “ansi-a” template. c)Now click on model layout tab. d)Draw a line by using line command. 2. 3. 4.Now save the drawing by clicking on save icon from quick access tool bar. BACK to Day-2 Lessions

How to inserting text fields in AutoCAD

1. a) Open AutoCAD application from desktop shortcut icon or start menu. b) Click on “Open icon” and select “CH11_EXERCISE 1” file then click on “Open” button to open the document. 2. Select “Notes” text style. 3. Type “TEXT” and press ENTER KEY. 4. Pick a point on workspace to start the text box. 5. Enter “0” as rotation angle. 6. Enter the text like shown below. 7. Right click on text area and select “Insert field” option from the popup menu. 8. Now select “Date & Time” from field category list. 9. Select “PlotDate” from the field names list. 10. Click on “OK” button. 11. Now press ENTER KEY. 12. The inserted field shown like below image. 13. Press plus “P” to plot the document and select printer as “DWG to PDF.pc3” and select “Window” as what to plot area then click on “OK” button. Save the print file. 14. Observe the printed file there no ---- here the date of printed is added. 15. Save the file by clicking on quick save icon from quick access menu.

How to start AutoCAD software in windows operating system?

1. Click on window button located near left bottom corner then click on AutoDesk or AutoCAD folder then select "AutoCAD" to open the software. or Type "AutoCAD" in the search box located near bottom left corner of the desktop then right click on the displayed application the select "Run as administrator" option. 2. Then AutoCAD application opened look like bellow image. (it will take time depending upon the system configuration). 3. Basic user interface of the AutoCAD application. BACK to Day-1 Lessions CLICK HERE to get CAD HOME Work help or project help (paid)

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