Circle, 2P circle, 3P circle, TTR circle

Autocad, Circle, 2P, 3P, TTR

Circle

 Draws a circle by letting the user specify the center point, then dictating the circle’s size by entering a value for either the circle’s radius or its diameter.

Another option to creating a circle with this command is to specify three points on the circle’s circumference, two end-points of its diameter, or its radius along with two other lines or circles to which the new circle will be tangential.

( Shortcut = C )

C                                                          =        ↵

Specify center point                             =  0,0 ↵

Specify radius or [Diameter]                =  10 ↵

Autocad, Circle, 2P circle, 3P circle, TTR circle

C                                                          =        ↵

Specify center point                             =  0,0 ↵

Specify radius or [Diameter]                =    D ↵

Specify diameter                                  =     10 ↵

Autocad, Circle, 2P circle, 3P circle, TTR circle

2P Circle

C                                                                                      = ↵

Specify center point or [3P/2P/Ttr (tan tan radius)]         = 2P ↵

Specify first end point diameter                                       = 0,0 ↵

Specify second end point diameter                                 = 5,8 ↵

Autocad, Circle, 2P circle, 3P circle, TTR circle

3P Circle

C                                                                                                = ↵

Specify center point or [3P/2P/Ttr (tan tan radius)]                   = 3P ↵

Specify first point                                                                       = 0,0 ↵

Specify second point                                                                 =3,5 ↵

Specify third point                                                                     =4,2 ↵

Autocad, Circle, 2P circle, 3P circle, TTR circle

Ttr (tan tan radius)

C                                                                                     = ↵

Specify center point or [3P/2P/Ttr (tan tan radius)]        = T ↵

Specify point on object for first tangent                          = Select 1st Line ↵

Specify point on object for second tangent                    = Select 2nd Line ↵

Specify radius                                                                 = 3 ↵

Autocad, Circle, 2P circle, 3P circle, TTR circle

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Move, Copy

Move

The user may dictate the direction and length of a move of specified objects by indicating two points which define a vector between the objects.

( Shortcut  = M )

M                                                                       =      

Select objects                                                    =    

Specify base point or [Displacement]                =   10,5 ↵

Move, Copy, Move in Autocad, Copy in Autocad, Autocad

Specify second point or  <use first point as displacement>      =   10,0 ↵

Move, Copy, Move in Autocad, Copy in Autocad, Autocad

Copy

Copy does not affect the original group of objects, with the copied objects being completely independent of the original objects.

( Shortcut = CO / CP )

CO                                                                     =      

Select objects                                                    =    

Specify base point or [Displacement]                =   10,5 ↵

Move, Copy, Move in Autocad, Copy in Autocad, Autocad

Specify second point or  <use first point as displacement>      =   10,0 ↵

Move, Copy, Move in Autocad, Copy in Autocad, Autocad

 

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Erase, Mirror, Offset

Erase

This removes a selected group of entities, which may be entered before or after the command it self is entered.

( Shortcut  = E )

E                                                                        =      

Select objects                                                    =    

Erase, Mirror, Offset

Mirror

This command produces a mirror like copy of a selected object group by specifying the two ends of the mirror line. Then, the mirrored objects may be deleted or kept, depending upon the user’s preference.

( Shortcut  = Mi )

Mi                                                                      =      

Select objects                                                    =    

Specify first point of mirror line                          =
Specify second point of mirror line

Erase Mirror Offset

Erase source objects? [Yes/No] <N>       =     

Erase, Mirror, Offset

Offset

Constructs a new entity parallel to an existing one. This could be a single line, polyline, arc, circle, or curve.

( Shortcut  = O )

O                                                                    =      

Select objects                                                 =    

Specify offset distance                                   =  1 

Select object to offset                                    =

Specify point on side to offset                       =  Click inside  or outside form object

Erase, Mirror, Offset Erase, Mirror, Offset

 

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Autocad Introduction, Cad History, Cad Version

{Autocad Introduction, Autocad History, Autocad Version, Autocad Languages, Autocad Extensions}

Autocad  Introduction

 Auto cad  Introduction the term CAD (Computer Aided Design) applies to a wide range of programs that allow the user to created drawings, plans, and designs electronically. Auto cad Introduction.

AutoCAD is one such program and it main claim to fame is that it is relatively easy to use, it is very comprehensive in its ability to create 2D and some 3D drawings, and it is very popular. Autocad Introduction.

Seventy percent of the CAD users in the world use AutoCAD. AutoCAD is used across a wide range of industries, by architects, project managers, engineers, graphic designers, and many other professionals. It is supported by 750 training centers worldwide as of 1994. Autocad Introduction.

Autocad Introduction, Autocad History, Autocad Version, Autocad Languages, Autocad Extensions

Capabilities :

  • 2D line drawings
  • 3D constructions
  • Rendering
  • Part Assemblies

Autocad History :

Autocad History was derived from a program begun in 1977 and released in 1979 called Interact CAD, also referred to in early Autodesk documents as MicroCAD, which was written prior to Autodesk’s (then Marinchip Software Partners) formation by Autodesk cofounder Mike Riddle. Autocad History

The first version by Autodesk was demonstrated at the 1982 Comdex and released that December.  As Autodesk’s flagship product, by March 1986 AutoCAD had become the most ubiquitous CAD program worldwide.  Autocad History

The 2016 release marked the 30th major release of AutoCAD for Windows. The 2014 release marked the fourth consecutive year of AutoCAD for Mac. Autocad History

Autocad Version :

The native file format of AutoCAD is .dwg. This and, to a lesser extent, its interchange file format DXF, have become de facto, if proprietary, standards for CAD data interoperability, particularly for 2D drawing exchange.  AutoCAD has included support for .dwf, a format developed and promoted by Autodesk, for publishing CAD data.

Official Name

Version

Release

Date of release

Comments

AutoCAD Version 1.0 1.0 1 1982, December DWG R1.0 file format
AutoCAD Version 1.2 1.2 2 1983, April DWG R1.2 file format
AutoCAD Version 1.3 1.3 3 1983, August DWG R1.3 file format
AutoCAD Version 1.4 1.4 4 1983, October DWG R1.4 file format
AutoCAD Version 2.0 2.0 5 1984, October DWG R2.05 file format
AutoCAD Version 2.1 2.1 6 1985, May DWG R2.1 file format
AutoCAD Version 2.5 2.5 7 1986, June DWG R2.5 file format
AutoCAD Version 2.6 2.6 8 1987, April DWG R2.6 file format. Last version to run without a math co-processor.
AutoCAD Release 9 9.0 9 1987, September DWG R9 file format
AutoCAD Release 10 10.0 10 1988, October DWG R10 file format
AutoCAD Release 11 11.0 11 1990, October DWG R11 file format
AutoCAD Release 12 12.0 12 1992, June DWG R11/R12 file format. Last release for Apple Macintosh till 2010.
AutoCAD Release 13 13.0 13 1994, November DWG R13 file format. Last release for Unix, MS-DOS and Windows 3.11.
AutoCAD Release 14 14.0 14 1997, February DWG R14 file format
AutoCAD 2000 15.0 15 1999, March DWG 2000 file format
AutoCAD 2000i 15.1 16 2000, July  
AutoCAD 2002 15.2 17 2001, June  
AutoCAD 2004 16.0 18 2003, March DWG 2004 file format
AutoCAD 2005 16.1 19 2004, March  
AutoCAD 2006 16.2 20 2005, March Dynamic Block
AutoCAD 2007 17.0 21 2006, March DWG 2007 file format
AutoCAD 2008 17.1 22 2007, March Annotative Objects introduced. AutoCAD 2008 and higher (including AutoCAD LT) can directly import and underlay DGN V8 files.
AutoCAD 2009 17.2 23 2008, March Revisions to the user interface including the option of a tabbed ribbon
AutoCAD 2010 18.0 24 2009, March 24 DWG 2010 file format introduced. Parametrics introduced. Mesh 3D solid modeling introduced. PDF underlays. Both 32-bit and 64-bit versions of AutoCAD 2010 and AutoCAD LT 2010 are compatible with and supported under Microsoft Windows 7.
AutoCAD 2011 18.1 25 2010, March 25 Surface Modeling, Surface Analysis and Object Transparency introduced. October 15, 2010[9] AutoCAD 2011 for Mac was released. Are compatible with and supported under Microsoft Windows 7
AutoCAD 2012 18.2 26 2011, March 22 Associative Array, Model Documentation, DGN editing. Support for complex line types in DGN files is improved in AutoCAD 2012.
AutoCAD 2013 19.0 27 2012, March 27 DWG 2013 file format
AutoCAD 2014 19.1 28 2013, March 26 File Tabs, Design Feed, Reality Capture, Autodesk Live Maps
AutoCAD 2015 20.0 29 2014, March 27 Line smoothing (anti-aliasing), Windows 8.1 support added, dropped Windows XP support (incl. compatibility mode)
AutoCAD 2016 20.1 30 2015, March 23 More comprehensive canvas, richer design context, and intelligent new tools such as Smart Dimensioning, Coordination Model, and Enhanced PDFs
AutoCAD 2017 21.0 31 2016, March 21 PDF import, Associative Center Marks and Centerlines, DirectX 11 graphics
AutoCAD 2018 22.0? 32? 2017, __/__ DWG 2018 file format

Autocad Languages :

Autocad Languaes and AutoCAD LT are available for English, German, French, Italian, Spanish, Korean, Chinese Simplified, Chinese Traditional, Brazilian Portuguese, Russian, Czech, Polish and Hungarian, Albanian (also through additional Language Packs).

Autocad Languages The extent of localization varies from full translation of the product to documentation only. The AutoCAD command set is localized as a part of the software localization.

Autocad Extensions :

Autocad Extensions AutoCAD supports a number of APIs for customization and automation. These include AutoLISP, Visual LISP, VBA, .NET and ObjectARX. ObjectARX is a C++ class library, which was also the base for:

  • products extending AutoCAD functionality to specific fields
  • creating products such as AutoCAD Architecture, AutoCAD Electrical, AutoCAD Civil 3D
  • third-party AutoCAD-based application

There are a large number of AutoCAD plugins (add-on applications) available on the application store Autodesk Exchange Apps  AutoCAD’s DXF, drawing exchange format, allows importing and exporting drawing information.

Vertical integration :

Autodesk has also developed a few vertical programs:

  • AutoCAD Architecture
  • AutoCAD Civil 3D
  • AutoCAD Electrical
  • AutoCAD ecscad
  • AutoCAD Map 3D
  • AutoCAD Mechanical
  • AutoCAD MEP
  • AutoCAD Structural Detailing
  • AutoCAD Utility Design
  • AutoCAD P&ID
  • AutoCAD Plant 3

Starting AutoCAD :

You can start AutoCAD by either double clicking on the program Icon on the desktop or by clicking on the program name in the Start menu. 

The program will start and after a minute or so should display a screen similar to the one shown below. The dialog box in the middle will aid you in getting started at either creating a new drawing or continuing your work on a drawing that is not finished. 

you are continuing work on a drawing, click on the “A” icon in the extreme upper left corner of the window and Open->Drawing. A “Select File” dialog box will open allowing you to select the drawing file you want to open.

The Initial Screen :

AutoCAD has a very versatile user interface that allows you to control the program in several different ways. At the top of the window is a row of menus. Clicking on the Home, Insert, or Annotate causes another selection of menus to appear.

This new selection of commands is frequently called a Ribbon or a Dashboard. You can operate the program by clicking on the icons in these menus. 

Another method of using the program is typing in the command names. This is frequently faster than using drop down menus for frequently used commands because you do not have to search for the correct menu or icon. You just type in the command name.

For the most part, we will use this approach in this series of tutorials. The commands that you type will appear at the bottom of the of the AutoCAD window.

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Autocad  Introduction