AutoCAD Manual

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  1 | Page   Lab No. Drawing No. Drawing Name 1 1 Installation, Introduction and desktop basics of AutoCAD 2015 2 2 Layout formation of Modeling and Simulation lab in AutoCAD 2015 3 4 Draw the Orthographic projections of Shackle Bolt 5 Draw the Orthographic projections of Simple Block 6 Draw the Orthographic projections of Monkey for Scribing Block 4 7 Draw Orthographic projections of Half section pulley 8 Draw Orthographic projections of full section shackle bolt and usage of cutting plane 9 Draw Orthographic projections of half sectioned bushed bearing 5 10 Isometric 3D Drawing of simple block and assigning dimensions in 3D geometry 11 Isometric 3D Drawing of simple block in South west Isometric view 12 Isometric 3D Drawing of simple block in south East Isometric view 6 13 3D Complex Drawings and learning about presspull, flatshot and extrude tool 14 3D Modeling of complex 3d block and learning about usage of UCS 15 3D Modeling of a given 3d block 16 3D modeling of half sectioned pulley and usage of revolve command 7 17 3D Modeling of Hex poll and learning about arrays 18 3D Modeling of a Gear Type Geometry 19 3D Modeling of Gear Hub 8 Assignment,Viva, Quiz TABLE OF CONTENTS  2 | Page   Sr. No Command Description 1.   Arc or A Draws an arc. The default method of drawing arcs is selecting three points (so-called 3 point arc ), which are the two endpoints of the arc and some other point along its locus. Other methods of drawing an arc can be specified by three letters, such as SEA, which means Start Point, End Point, and Included Angle. 2.   Area Computes the area of any shape by selecting points at the corners of the shape, or by selecting a circle or polyline after typing or picking the E option 3.   Array Makes multiple copies of selected objects in a rectangular (parallel with the snap rotation) or circular pattern 4.   Base Specifies srcin of current drawing for subsequent insertion into another drawing -- is normally set to point 0,0,0 5.   BHATCH Fills an automatically defined boundary with a hatch pattern through the use of dialogue boxes. Also allows previewing and replacing adjustments without starting over each time. 6.   BPOLY Creates a closed polyline of a boundary by picking an open area within an area enclosed by lines, arcs or circles 7.   Break Erases part of a line, arc or circle, or splits it into two lines or arcs 8.   Chamfer Creates a chamfer (a angled line connection) at the intersection of two lines 9.   Chamfer Edge Bevels the edges of solid objects. 10.   Circle or C Draws a circle of any size. The default method is to pick a center point and  pick a point on the radius or type the radius dimension, but other methods can be selected. 11.   Color Sets the current color for subsequently drawn objects (objects drawn after the command is invoked). The default current color is a so-called logical color called BYLAYER which means that the color of the object drawn will be the color which the current layer has been set to. Commands used in Auto CAD 2015  3 | Page   12.   Compile Compiles shape and font files More than  likely, you will never use this command, unless you are creating your own letter design or are creating shapes to be used as commonly used symbols in the drawing. These are not typically used in architectural drawings 13.   Copy Draws a copy of selected objects using two methods -- base point method, or displacement method. 14.   DIM Aligned Dimension sub-command: Draws a linear dimension with the dimension line parallel to the selected dimension srcin points. This lets you align a dimension with an angled line that is not either exactly horizontal or vertical. 15.   DIM Angular Dimension sub-command: Draws an arc and calculates the angle between two non-parallel lines, and draws the text and arrowheads. Arrowheads are the standard AutoCAD filled triangles, regardless of your defined Arrow Block. 16.   DIM Baseline Dimensioning sub-command: Continues a linear dimension from the baseline (the so-called first extension line ) of the previous or selected dimension. This is not frequently used in architectural dimensions. The spacing between each dimension line is controlled by the AutoCAD variable DIMDLI ( Dimension Line Increment ), which you should set at 0 normally, but if you use the baseline command, you should reset to 1/8 . 17.   DIM Centre Dimensioning sub-command: Draws a pair of crossed lines at the center of a circle or arc on the current layer 18.   DIM Continue Dimensioning sub-command: Continues a linear dimension from the second extension line of the previous or selected dimension. It is used to create a so-called string of dimensions. This is used quite a bit in architectural drawings. 19.   DIM Diameter Dimensioning sub- command: Draws a dimension through the center of a circle or arc, calculating the diameter, with one of the arrow heads located at the point on the circle or arc which is picked.  4 | Page   20.   DIM Exit Dimensioning sub-command: Exits the dimensioning program and returns from the Dim: prompt to the normal Command: prompt 21.   DIM Home Text Dimensioning sub-command: Restores the text of an associative dimension to its default (home) location if you have moved it. 22.   DIM Horizontal Dimensioning sub-command: Draws a horizontal linear dimension line 23.   DIM Leader Dimensioning sub-command: Draws a line or series of lines with an arrow head (commonly called a leader ) to point to an object to notate it. This command will also prompt you for the note at the end of the leader line, but it will allow only one line of text. The most useful method of using this command is to simply draw leaders between the object to be notated and text that you create with the DTEXT command. 24.   DIM Oblique Dimensioning sub-command: Adjusts the oblique angle of a linear associative dimensions’ extension lines. Useful in dimensioning isometric drawings. 25.   DIM Ordinate Dimensioning sub-command: Draws the X and Y coordinates within a box with a leader line attached to the point, for a selected point. Automatically calculates the coordinates. 26.   DIM Radius Dimensioning sub-command: Draws the radius dimension of an arc or circle from the center to the point on its locus where the arc or circle was selected. 27.   DIM Rotate Dimensioning sub-command: Draws a linear dimension with the distance measured srcin points, but with the actual dimension line set at a different angle. 28.   DIM Save Dimensioning sub-command: Saves the currently set dimension variables under a dimension style name for future retrieval through the RESTORE command. 29.   DIM  NEWTEXT Dimensioning sub-command: Permits changing text of an associative dimension without exploding it.
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