AUTO CAD CIVIL ENGINEERING, Study notes of Civil Engineering

Download AUTO CAD CIVIL ENGINEERING and more Study notes Civil Engineering in PDF only on Docsity! AUTO CAD LABORATORY MANUAL DEPARTMENT OF CIVIL ENGINEERING MANDATORY INSTRUCTIONS 1. Students should report to the labs concerned as per the timetable. 2. Record should be updated from time to time and the previous experiment must be signed by the faculty in charge concerned before attending the lab. 3. Students who turn up late to the labs will in no case be permitted to perform the experiment scheduled for the day. 4. After completion of the experiment, certification of the staff in-charge concerned in the observation book is necessary. 5. Students should bring a notebook of about 100 pages and should enter the readings/observations/results into the notebook while performing the experiment. 6. The record of observations along with the detailed experimental procedure of the experiment performed in the immediate previous session should be submitted and certified by the staff member in-charge. 7. Not more than FIVE students in a group are permitted to perform the experiment on a set up. 8. The group-wise division made in the beginning should be adhered to, and no mix up of student among different groups will be permitted later. 9. The components required pertaining to the experiment should be collected from Lab- in-charge after duly filling in the requisition form. 10. When the experiment is completed, students should disconnect the setup made by them, and should return all the components/instruments taken for the purpose. 11. Any damage of the equipment or burnout of components will be viewed seriously either by putting penalty or by dismissing the total group of students from the lab for the semester/year. 12. Students should be present in the labs for the total scheduled duration. 13. Students are expected to prepare thoroughly to perform the experiment before coming to Laboratory. 14. Procedure sheets/data sheets provided to the students groups should be maintained Experiment No. 1 INTRODUCTION TO COMPUTER AIDED DRAFTING Computer Aided Drafting is a process of preparing a drawing of an object on the screen of a computer. There are various types of drawings in different fields of engineering and sciences. In the fields of mechanical or aeronautical engineering, the drawings of machine components and the layouts of them are prepared. In the field of civil engineering, plans and layouts of the buildings are prepared. In the field of electrical engineering, the layouts of power distribution system are prepared. In all fields of engineering use of computer is made for drawing and drafting. The use of CAD process provides enhanced graphics capabilities which allows any designer to Conceptualize his ideas Modify the design very easily Perform animation Make design calculations Use colors, fonts and other aesthetic features. 1.1 REASONS FOR IMPLEMENTING A CAD SYSTEM 1. Increases the productivity of the designer: CAD improves the productivity of the designer to visualize the product and its component, parts and reduces the time required in synthesizing, analyzing and documenting the design 2. Improves the quality of the design: CAD system improves the quality of the design. A CAD system permits a more detailed engineering analysis and a larger number of design alternatives can be investigated. The design errors are also reduced because of the greater accuracy provided by the system 3. Improves communication: It improves the communication in design. The use of a CAD system provides better engineering drawings, more standardization in the drawing, and better documentation of the design, few drawing errors and legibility. 4. Create data base for manufacturing: In the process of creating the documentation for these products, much of the required data base to manufacture the products is also created. 5. Improves the efficiency of the design: It improves the efficiency of the design process and the wastage at the design stage can be reduced 6. APPLICATION OF CAD: There are various processes which can be performed by use of computer in the drafting process. 1. Automated drafting: This involves the creation of hard copy engineering drawings directly from CAD data base. Drafting also includes features like automatic dimensioning, generation of cross – hatched areas, scaling of the drawing and the capability to develop sectional views and enlarged views in detail. It has ability to perform transformations of images and prepare 3D drawings like isometric views, perspective views etc., 2. Geometric modeling: concerned with the computer compatible mathematical description of the geometry of an object. The mathematical description allows the image of an object to be displayed and manipulated on a graphics terminal through signals from the CPU of the CAD system. The software that provides geometric modeling capabilities must be designed for efficient use both by computer and the human designer. 1.2 BENEFITS OF CAD: The implementation of the CAD system provides variety of benefits to the industries in design and production as given below: 1. Improved productivity in drafting 2. Shorter preparation time for drawing 3. Reduced man power requirement 4. Customer modifications in drawing are easier 5. More efficient operation in drafting 6. Low wastage in drafting 7. Minimized transcription errors in drawing 8. Improved accuracy of drawing 9. Assistance in preparation of documentation 10.Better designs can be evolved 11.Revisions are possible 12.Colors can be used to customize the product 13. Production of orthographic projections with dimensions and tolerances 14.Hatching of all sections with different filling patterns 1.3 LIMITATIONS OF CAD 1. 32 – bit word computer is necessary because of large amount of computer memory and time 2. The size of the software package is large 3. Skill and judgment are required to prepare the drawing 4. Large investment. 1.4 Pre-lab questions: 1. Full form of AUTO CAD 2. What are the benefits of auto cad? 3. What are the reasons for implementing of auto cad? 1.5 Post lab questions: 1. Briefly explain application of auto cad? 2. What are the benefits of auto cad in civil engineering point of view? 3. What are the limitations of auto cad? snap distance to convenient values. It is possible to adjust these settings. e. Title block: Select the description of an ACAD drawing file of a title block to insert as a symbol in the new drawing. It can add or remove drawing files of title blocks from the list with the Add or Remove buttons f. Layout: Paper space is often used to create complex multiple view drawings. There are three types of paper spaces: 1. Work on the drawing while viewing the layout. 2. Work on the drawing without the layout visible 3. Work on the layout of the drawing. The following procedure is used for this purpose 1. From the File menu or from the standard tool bar, choose New 2. In the startup dialog box, choose Use a wizard, and select Advanced wizard 3. Choose OK 4. In the Advanced Setup Dialog box, select Title Block. 5. Select Title Block Description and Title Block file Name from the lists and then choose Add. 6. In the Select Title Block File dialog box, Select a title block, then choose open 7. In the Advanced Setup dialog box, a sample of that title is displayed. 8. Choose Done. 2.3 DRAWING ENVIRONMENT ACAD provides two drawing environments for creating and laying out the drawing. i. Model Space ii. Paper Space. ACAD allows creating drawing, called a model, in full scale in an area known as model space without regard to the final layout or size when the drawing is plotted on the paper. In the space opened for the first time, it is possible to create floating viewports to contain different views of the model. In the paper space, floating viewports are treated as objects which can be moved and resized in order to create a suitable layout. LIMITS This sets and controls the drawing boundaries. At the command prompt, enter limits ON/OFF/<LOWER LEFT CORNER> <current>: Specify a point, enter on or off, or press enter. LTSCALE This sets the line type scale factor. Use LTSCALE to change the relative length of the dash – dot line types per drawing unit At the Command prompt, enter ltscale New scale factor <current>: Enter a positive real value or press enter Changing the line type scale factor causes the drawing to regenerate. MEASURE This places point objects or blocks at measured intervals on an object. At the command prompt, enter measure Select object to measure: Use an object selection method <segment length> / Block: Specify a distance. PAN This moves the drawing display in the current viewport. At the command prompt, enter pan Displacement: Specify a point (1) The point which specify indicates the amount to move the drawing or the location of the drawing to be moved. Second point: Press or specify a point (2) If pressed, ACAD moves the drawing by the amount which is specified in the Displacement prompt. If we specify a point, ACAD moves the location of the drawing to that point. 2.4 ELEMENTS OF DRAWING 2.4.1 DRAW COMMANDS LINE: A line is specified by giving its two end points or first point and the distance of line along with its angle of inclination. A line can be drawn by using two commands. Command: line Specify first point: Specify a point (1) Specify next point or [Undo]: Specify a point (2) The second point can be indicated by @d<a Where d is the distance of line and a is the angle of inclination in degrees. PLINE: This is a poly line which allows continuous segment of the line and it is drawn similar to the line command. The polyline allows changing the thickness of the line according to the requirement. From the Draw tool bar choose the Polyline flyout. Draw pull down menu: Polyline At the command prompt, enter pline Syntax Specify start point: Specify a point (1) Current line-width is <current> Specify next point or [Arc/Close/Half width/Length/Undo/Width]: Specify a point (2) or enter an option Isocircle: Creates an isometric circle in the current isometric drawing plane. At the command prompt, enter ellipse iii. Arc: The arc is a curve specified by center and radius as well as the start angle and end angle. There are seven method used for drawing an arc. 1. Three point method 2. Start point-center point –end point 3. Start point-center point-length of chord 4. Start point-end point –angle of inclusion 5. Start point-end point-direction 6. Start point-center point-angle of inclusion 7. Start point-end point-radius These methods can be used by executing the arc command ARC: creates an arc. At the command prompt, enter arc Center/<start point>: specify a point, enter c, or press enter Polyarc: the second method of the drawing the arc is poly arc by use of pline command. This command allows drawing of filled arc of any width .it also allows for drawing of a regular or irregular curve. 2. Drawing of Rectangle: A rectangle can be drawn by LINE command or by Rectangle command. The PLINE command also allows for drawing of hollow or filled rectangle .A SOLID command is also used for drawing of filled rectangles. 1. RECTANGLES: draws a rectangular polyline At the command prompt, enter rectangle First corner: specify point (1) Other corner: specify point (2) 2. SOLID: creates solid –filled polygons .solids are filled only when fill system variable is set to on view is set to plan. At the command prompt, enter solid First corner: specify point (1) Other corner: specify point (2) The first two points define one edge of the polygon. Third point: specify a point (3) diagonally opposite the second Forth point: specify a point (4) or press enter 3. DRAWING OF POLYGON Creates an equilateral closed polyline .A polygon is a polyline object. AUTOCAD draws polyline with zero width and no tangent information. At the command prompt enter polygon Number of sides <current>: enter a value between 3 and 1024 or press enter Edge/<center of polygon>: specify a point (1) or enter. 4. POINT Creates a point object .points can act as nodes to which you can snap objects .you can specify a full 3D location for a point. At the command prompt, enter point Point: specify a point 5. ERASING OF OBJECT: The object can be removed or erased by use of erase command ERASE This removes object from drawing At the command prompt, enter erase Select objects: use an object selection method. 6. COLOURING OF OBJECT: The object can be drawn with any variety of colour which ranges from 0 to 256. The setting of colour can be done by color command COLOR Sets the colour for new objects. At the command prompt, enter color <current>: enter a value (1-255), color name, by block, or by layer 7. FILLING OF OBJECT: the object can be filled with different colors and patterns by use of hatch command This command allows selection of various patterns, scale of pattern and angle of pattern. HATCH This fills an area with a pattern. HATCH fills the specified hatch boundary with non-associative hatch A non –associative hatch is not updated when its boundaries are modified .a hatch boundary consists of an object or objects that completely enclose an area At the command prompt, enter hatch Pattern (? Or name/ U, style) <current>: enter a predefined pattern name, enter u, enter? Or press enter. 8. SCALING OF DRAWING: zoom command displays the object at a specified scale factor. the value entered is relative to the limits of the drawing .for example ,entering 2 doubles the apparent display size of any objects from what it would be if it were zoomed to the limits of the drawing 3. ROTATE: It moves objects about a base point At the command prompt, enter rotate Select objects: use an object selection method <Rotate angle >/reference: specify an angle or enter r 4. STRETCH: This moves or stretches objects .AutoCAD stretches lines, arcs, elliptical arcs, splines, rays and polyline segments that cross the selection window. At the command prompt, enter stretch Select objects: use the CPOLYGON or cross object selection method (1,2) Base point or displacement: specify a point (3) or press Second point of displacement: specify a point ($) or press 5. EXTEND: This extends an object to meet another object. Objects that can be extended include arcs, elliptical arcs, lines, open 2D, and 3Dpolylines and rays. At command prompt, enter extend Select boundary edges (projmode=UCS, edge mode=no extend) Select objects: use an object selection method 6. SCALE: This enlarges or reduces selected objects equally in X and Y directions At the command prompt, enter scale Select objects: use an object selection method Base point: specify a point (1) <Scale factor>/reference: specify a scale or enter r 7. TRACE: This creates solid lines. From the miscellaneous tool bar choose At the command prompt, enter trace Trace width<current>: specify a distance, enter a value, or press enter From point: specify point (1) To point: specify a point (2) To point: specify a point (3) or press to end the command 8. EXTRUDE: This creates unique solid primitives by extruding existing two-dimensional objects extrudes also creates solids by extruding two-dimensional objects along a specified path .we can extrude multiple objects with extrude At the command prompt enter, extrude Select objects: use an object selection method Path/<height of extrusion>: specify a distance or enter p 9. MIRROR: This is used to producing mirror image of the object At the command prompt enter, mirror Select objects: use an object selection method First point of the mirror line: specify a point (1) Second point: specify a point (2) 10. OFFSET: This creates concentric circles ,parallel lines and parallel curves, offset creates a creates a new object at a specified distance from an existing object or through a specified point At the command prompt enter, offset Offset distance: specify a distance, enter t or press enter 11. ARRAY: This creates multiple copies of objects in pattern. Each object in an array can be manipulated independently At the command prompt enter, array Rectangular or polar array<current>: enter an option or press enter specify a point 12. CUTTING OF OBJECTS The drawn objects can be cut or trimmed by using following commands 1. TRIM: Trims objects at a cutting object defined by other objects. Objects that can be trimmed include arcs ,circles, elliptical arcs, lines, open 2D and 3Dpolylines,rays and splines At the command prompt, enter trim Select cutting edges: Select objects: use object selection method <Select object to trim>/project/edge/undo: select an object, enter an option, or press enter 2. BREAK: This erases an object or splits the object in to two parts From the modify toolbar select break flyout At the command prompt, enter break Select objects: use an object selection method First point of the mirror line: specify a point (1) on an object Enter second point: specify the second break point (2) or enter F 18. DIST: This measures the distance and the angle between two points. At the command prompt area enter dist First point: Specify a point (1) Second point: Specify a point (2) Distance = calculated distance Angle in XY plane = angle from XY plane = angle Delta X = change in X Delta Y = change in Y Delta Z = change in Z. 19. REGENERATION OF DRAWING: ACAD provides a facility of regenerating a drawing to clear the cross points or marks on the screen. REDRAW REGEN REGENALL REGENAUTO 21. TOLERANCE This creates geometric tolerances. Geometric tolerances define the maximum allowable variations of form or profile, orientation, location and runout from the exact geometry in a drawing. They specify the required accuracy for proper function and fit the objects drawn in AutoCAD 22. SKETCH This creates a series of free hand line segments. From the miscellaneous toolbar, choose At the command prompt enter sketch Follow the prompting 2.5 3D FUNCTIONS 1. BOX This creates a three dimensional solid box. At command prompt enter box Center/<corner of the box><0,0,0> : Specify a point (1), enter c, or press enter Corner of a box Specifying a point or pressing defines the first corner of the box. Cube/length /<other corner>: specify a point (2) or enter an option center Creates the box by a specified center point 2. CONE This creates a 3D solid cone. A cone is solid primitive with a circular or elliptical based tapering symmetrically to a point perpendicular to its base. At the command prompt enter cone Elliptical /<center point> <0,0,0>: specify a point, enter e or press enter 3. CYLINDER This creates a 3D solid cylinder. A cylinder is solid primitive with a circular or elliptical based to a point perpendicular to its base without a taper. At the command prompt enter cylinder Elliptical /<center point> <0,0,0> : specify a point, enter e or press enter 4. SPHERE This creates a 3D solid sphere. A sphere is positioned so that its central axis is parallel to the Z-axis of the current UCS. Latitudinal lines are parallel to the XY plane. At the command prompt enter sphere center of the sphere <0,0,0> : specify a point , enter e or press enter 5. WEDGE This creates a three dimensional solid with a sloped face tapering along X axis. At the command prompt enter wedge Center <corner of the wedge> <0,0,0> : specify a point, enter e or press enter Follow the prompting 6. ELEV This sets an elevation and extrusion thickness of new objects. The current elevation is the Z value that is used whenever a 3D point is expected but only X and y values are supplied. At the command prompt enter elev Follow the prompting 7. SHADE This displays a flat shaded image of the drawing in the current view port. SHADE removes hidden lines and displays a shaded picture of the drawing. 8. REGION This creates a region object from a selection set of existing objects. Regions are 2Dimensional areas you create from closed shapes. 9. REINIT This reinitializes the input/output ports, digitizer, display and program parameters file. 10. REPLAY This displays a GIF, TGA or TIFF image. From the tools menu, choose image, then view. Experiment No. 3 PRACTICE EXERCISES ON CAD SOFTWARE Launching AutoCAD from operating System. • Click on Start. • Go to Programs • Go to Auto Desk • Go to Auto CAD 2012- English • Click on Auto CAD 2012- English. Using your pointing device One of the key means of controlling commands & inputting information into your drawing file will be by using your mouse. Using three button mouse: • Left button: data / accept – used to select command & enter points. • Middle button: It is used as Pan and scroll zooming • Right button: Reset / reject / repeat last command – used to end a command or to display o a small pull down menu or to repeat last command. • Using the Key boards. • Typing Command name is “command line”. Can run all the commands in auto CAD. • Enter button and Space bar can be used to accept a command or repeat last command. • The Function Keys can be used as toggle buttons to switch ON/ OFF for some of functions. The Important ones are Function key Function F1 Help on F2 Toggle text windows F3 Toggle object snap setting F4 3D o snap on/off F5 Isoplane Top / Left/ Right F6 Dynamic UCS off/ on F7 Toggle Grid points F8 Ortho on/off F9 Toggle Snap on/off F10 Toggle Polar on F11 Object snap tracking off F12 Dynamic on/off User coordinate system: You can enter pts directly on the command line using 3 different systems. The one you use is depend on which is more applicable for the situation. The first assignment will get you used to this the 3 systems are as follows. a. Absolute Coordinate system (x, y) b. Relative rectangular Coordinate system @ (x, y) c. Relative Polar Coordinate system : You would use this System if you know that you want to draw a line a certain distance at a ┴ Lar Angle. We would enter this as at D < A. In This case D is the distance and A is the angle. Example: At 10 Angle 900 ( 10 < 90) d. Creating a new AutoCAD file: Go to file menu Select new & Click on drawing Then select template in that selects ACAD and then click on open. e. Command in AutoCAD to DRAW, MODIFY and DIMENSION: Before going to start draw any drawing must set Units, Limits & Grid. Unit limits: Command : units (enter) Type Decimal Millimeters Click on ok Limits: Command: limits (enter) Specify lower left corner – ( 0, 0) Specify upper right corner ( 100, 100) Grid on: Click on F7 Zoom Command: Command : Z enter Options: ( All / center/ dynamic/ extents. Previous/ scale/ window/ object) ( real Time) Line command: Command: L (enter) Using absolute ordinate system L (enter) (0,0) enter ( 100, 0) enter (100, 00) enter ( 10, 100) enter Using relative rectangular coordinate system L (enter) (0,0) enter @100,0 @0,100 @-100,0 C enter Using relative polar Coordinate System: L enter Click on screen @ 100 < 0 enter @ 100< 90 enter @ 100 < 180 enter Construction Line: Command: XL enter XLINE Specify a point or [ Hor/ ver/ Ang/ Bisect/ offset ] : h Polyline: Command: PL (enter) Specify Start point: Specify next point (or) [ Arc/ Half width/ length/ undo/ width] : click on screen For arc in the polyline enter option ‘A’ Polygon: Command: POL (enter) Polygon enter no. of sides : 5 (enter) Specify center of polygon or edge : Click on Screen Enter an option [Inscribed circle/ circumscribed about circle] {I}:C Circle: Command: C (enter) Circle Specify center pt for circle or [ 3p / 2p/ Ttr]: click on screen Specify radius of circle : 50 (enter) second click Rectangle: Rec (enter) Specify 1st Corner pt: click on Screen first pt Specify 2nd Corner pt: click on Screen second pt Option for specifying other corner points Using dimension option Specify other corner pt: [Area/ dimension]: D (enter) Specify length: 100 (enter) Specify width : 50 ( enter) Click on screen Using Area option A (enter) Enter area of rectangle : 100 L (enter) 10 (enter) Offset Command: O (enter) Enter the offset distance: example: 10 (enter) Select the object and direct the offset Rectangular Array Command: ar (enter) Select Tick The rectangular array Enter the no of rows Enter the no of columns Click on the selected objects button Polar array: Command: ar (enter) Tick polar array Select the objects Enter the total no of items Specify the angle Specify the center point Move Command: m (enter) Select the object Specify the base point Click wherever required Rotate Command: ro (enter) Select the object (enter) Specify the base point Enter the angle Example: 450 enter Scale Command: sc (enter) Select the object (enter) Specify the base points Enter the scale factor Example: 2 (enter) Stretch s (enter) Select the object (enter) Specify Base point and drag the mouse towards the required direction V 25 Trim Command: tr (enter) Select cutting edges (enter) Select the objects to trim Extend command Command: Ex (enter) Select boundary edges (enter) Then select the object to extend Break command: Command: br (enter) Select 1st point and 2nd point Chamfer command: (Draw a rectangle of 100 x 50 ) Command: Cha (enter) d (enter) Enter the distance 15 (enter) Enter the distance 10 (enter) Select two adjacent line on screen Fillet Command: f(enter) r (enter) example: 10 (enter) Explode: x (enter) Select the object (enter) Pre lab questions 1. What is user co-ordinate system? 2. What is polar co-ordinate system 3. What is absolute co-ordinate system? Post lab questions 1. What is offset? 2. What is rectangular array? 3. What is fillet? 4.4 Procedure: Se] NWid agqvouw woot aaa Tr Tm SNITING GSASHOLS STONIS (Ee ON EXS «el 1. Set units type-Architectural and precision-0’-0½” 2. Create layers, text style, Dimension style 3. Draw a rectangle required template size using rectangular command, then Z ‘enter’ E ‘enter’ to zoom extend 4. Start drawing plan with line command one horizontal line and vertical line-while drawing line keep Ortho on 5. With offset command wall thickness and room dimensions are drawn 6. Use Trim command at every junction and excess lines 7. Provide doors and windows openings according to the sizes- use offset and trim command 8. Text and Dimensioning – (common text height 9”- Main text height 14”)-Dimensioning commands preferable Linear, Aligned and leader. 9. Draw section mark –use polyline command 10.Schedule of Door and windows- use text command 11.Using save command, the file having plan is saved by giving the Corresponding path name. 4.5 Results: The functional requirements of the single storeyed building is planned and the plan drawn in AutoCAD 2013 4.6 Pre lab questions 1. What is osnap? 2. What is plan? 3. List various commands used in this building plan? 4.7 Post lab questions 1. What is polyline? 2. What is common text height? 3. Thickness of wall? 4.8 Assignment question 1. Draw single storeyed building plan in Auto Cad 2016 Experiment No. 4.Drawing of plans of Buildings using software b) MULTI STOREYED 4.1 Aim: To draw the plan of single storeyed building using the various commands in AutoCAD 4.2 Software Used: AutoCADD 2016 4.3 Command Used And Their Description:- Zoom – It is used to zoom the object created. Units – Used to set the current format for units of measure. Line –Line commands allows creating a line where the end points allow creating a line where the end points are dimensional co-ordinates. Line type – using this command different type of lines can be used to draw object. Offset – create a news object at a specified distance from an existing object or through a specified point. Fillet - This command is basically used for rounding off edges Trim – trims off an object using cutting edges defined by other objects.2 Break – removes only a part of an object. Arc – Used to create an arc segment. Methods are: 1. 3 Points, 2. Start, Center, End 3. Start, Center, Angle 4. Center, Start, End 5. Center, Start, Angle 6. Start, Center, Length 7. Center, Start, Length 8. Start, End, Angle 9. Start, End, Radius 4.5 Results: The functional requirements of the multi storeyed building is planned and the plan drawn in AutoCAD 2016 4.6 Pre lab questions 1. What is meant by multi storyed building? 2. Define trim? 3. How to set page dimensions? 4.7 Post lab questions 1. Define break command 2. Different types of line commands? 4.8 Assignment questions 1. Draw multi storeyed building plan in Auto Cad 2016 Experiment No. 5 DEVELOPING SECTIONS AND ELEVATIONS FOR a) SINGLE STOREYED b) MULTI STOREYED a) Single storeyed Building 5.1 Aim: To draw the plan of single storeyed building using the various commands in AutoCAD 5.2 Software Used: AutoCADD 2016 5.3 Command Used And Their Description:- Zoom – It is used to zoom the object created. Units – Used to set the current format for units of measure. Line –Line commands allows creating a line where the end points allow creating a line where the end points are dimensional co-ordinates. Line type – using this command different type of lines can be used to draw object. Offset – create a news object at a specified distance from an existing object or through a specified point. Fillet - This command is basically used for rounding off edges Trim – trims off an object using cutting edges defined by other objects.2 Break – removes only a part of an object. Arc – Used to create an arc segment. Methods are: 1. 3 Points, 2. Start, Center, End 3. Start, Center, Angle 4. Center, Start, End 5. Center, Start, Angle 6. Start, Center, Length 7. Center, Start, Length 8. Start, End, Angle 9. Start, End, Radius 10. Start, End, Diameter 11. Continue Copy- Moves the selected objects from a given square to destination, learning a copy at the originally selected location. Rotate- rotate objects around a specified point Move- moves object to the destination place from the source place BHatch – makes shaded patterns as matter of few picks and clicks away Extend – elongates an object to a boundary defined by other objects Erase – used to erase the unwanted objects Text – creates text object with specified height and orientation osnap – AutoCAD displays the object snaps tab in drafting setting dialog box. If we enter osnap at command prompt it presents options on the command line. 5.4 Procedure: 1. The elevation is drawn by extending the outer line of the plan using extend command and unwanted lines are erased using erase command. 2. The doors, windows, sunshade and parapet are drawn in same distance in elevation as drawn in same distance in the plan. 3. The section is drawn on the adjacent side of the elevation by extending the lines. 4. The various represtations of brickwork, sand filling and concrete are completed in the section using Bhatch command. 5. Using save command, the file having plan, elevation and section is saved by giving the Corresponding path name. 6. Using save command, the file having plan, elevation and section is saved by giving the Corresponding path name. 8. Start, End, Angle 9. Start, End, Radius 10. Start, End, Diameter 11. Continue Copy- Moves the selected objects from a given square to destination, learning a copy at the originally selected location. Rotate- rotate objects around a specified point Move- moves object to the destination place from the source place BHatch – makes shaded patterns as matter of few picks and clicks away Extend – elongates an object to a boundary defined by other objects Erase – used to erase the unwanted objects Text – creates text object with specified height and orientation osnap – AutoCAD displays the object snaps tab in drafting setting dialog box. If we enter osnap at command prompt it presents options on the command line. 5.4 Procedure: 1. The elevation is drawn by extending the outer line of the plan using extend command and unwanted lines are erased using erase command. 2. The doors, windows, sunshade and parapet are drawn in same distance in elevation as drawn in same distance in the plan. 3. The section is drawn on the adjacent side of the elevation by extending the lines. 4. The various repetitions of brickwork, sand filling and concrete are completed in the section using Bhatch command. 5. Using save command, the file having plan, elevation and section is saved by giving the Corresponding path name. 6. Using save command, the file having plan, elevation and section is saved by giving the Corresponding path name. 5.5 Results: The functional requirements of the multi storeyed building is planned, the section and elevation are drawn in AutoCAD 2013 5.6 Pre lab questions 1. How to use Hatch? 2. Define trim? 3. Define Multi storey building? 5.7 Post lab questions 1. How to use text command? 2. Define section? 3. Define elevation? 5.8 Assignment questions 1. Draw the plan of multi storeyed building? Experiment No. 6 DETAILING OF BUILDING COMPONENTS LIKE DOORS, WINDOWS, ROOF TRUSSES ETC. USING CAD SOFTWARE a)DOORS 6.1 Aim: To draw the plan, section and elevation of doors using the various commands in AutoCAD 6.2 Software Used: AutoCADD 2013 6.3 Command Used And Their Description:- Zoom – It is used to zoom the object created. Units – Used to set the current format for units of measure. Line –Line commands allows creating a line where the end points allow creating a line where the end points are dimensional co-ordinates. Line type – using this command different type of lines can be used to draw object. Offset – create a news object at a specified distance from an existing object or through a specified point. Fillet - This command is basically used for rounding off edges Trim – trims off an object using cutting edges defined by other objects.2 Break – removes only a part of an object. Arc – Used to create an arc segment. Methods are: 1. 3 Points, 2. Start, Center, End 3. Start, Center, Angle 4. Center, Start, End 5. Center, Start, Angle 6. Start, Center, Length 7. Center, Start, Length 8. Start, End, Angle 9. Start, End, Radius Experiment No. 6 DETAILING OF BUILDING COMPONENTS LIKE DOORS, WINDOWS, ROOF TRUSSES ETC. USING CAD SOFTWARE b) WINDOW 6.1 Aim: To draw the plan, section and elevation of doors using the various commands in AutoCAD 6.2 Software Used: AutoCADD 2013 6.3 Command Used And Their Description:- V Zoom – It is used to zoom the object created. V Units – Used to set the current format for units of measure. V Line –Line commands allows creating a line where the end points allow creating a line where the end points are dimensional co-ordinates. V Line type – using this command different type of lines can be used to draw object. V Offset – create a news object at a specified distance from an existing object or through a specified point. V Fillet - This command is basically used for rounding off edges V Trim – trims off an object using cutting edges defined by other objects.2 V Break – removes only a part of an object. V Arc – Used to create an arc segment. Methods are: 1. 3 Points, 2. Start, Center, End 3. Start, Center, Angle 4. Center, Start, End 5. Center, Start, Angle 6. Start, Center, Length 7. Center, Start, Length 8. Start, End, Angle 9. Start, End, Radius 10. Start, End, Diameter 11. Continue V Copy- Moves the selected objects from a given square to destination, learning a copy at the originally selected location. V Rotate- rotate objects around a specified point V Move- moves object to the destination place from the source place V BHatch – makes shaded patterns as matter of few picks and clicks away V Extend – elongates an object to a boundary defined by other objects V Erase – used to erase the unwanted objects V Text – creates text object with specified height and orientation V osnap – AutoCAD displays the object snaps tab in drafting setting dialog box. If we enter V osnap at command prompt it presents options on the command line 6.4 Procedure: 1. The plan is drawn as per the window size and shown in above fig. 2. The elevation is drawn by extending the outer line of the plan using extend command and unwanted lines are erased using erase command. 3. The section is drawn on the adjacent side of the elevation by extending the lines. 4. The various representations of frames, tower bolts, railings, Handles etc.., are completed in the section using line and B hatch commands. 5. Using save command, the file having plan, elevation and section is saved by giving the Corresponding path name. 6. Using save command, the file having plan, elevation and section is saved by giving the Corresponding path name. 6.5 Results: The planned, the section and elevation of the window is drawn in AutoCAD 2013 6.6 Pre lab questions 1. How to use Hatch? 2. Define trim? 3. Define Multi storey building? 6.7 Post lab questions 1. How to use text command? 2. Define section? 3. Define elevation? 6.8 Assignment questions 1. Draw the section and elevation of the window? 7.4 Procedure: 1. Start drawing working plan to Architectural plan with of hatch, dim etc… commands 2. Remove all room sizes and do dimensioning each and every detail. 3. Using save command, the file having plan is saved by giving the Corresponding path name. 7.5 Results: The working drawing for the given plan is drawn in AutoCAD 2013 7.6 Pre lab questions 1. How to use Hatch? 2. Define trim? 3. Define Multi storey building? 7.7 Post lab questions 1. How to use text command? 2. Define section? 3. Define elevation? 7.8 Assignment questions 1. Draw a working plan of building using Auto CAD? S.NO LIST OF EXPERIMENTS 1 Introduction to computer aided drafting 2 Software for CAD- Introduction to different software’s 3 Practice exercises on CAD software 4 Drawing of plans of buildings using software c) Single storeyed d) Multi storeyed 5 Developing sections and elevations for c) Single storeyed d) Multi storeyed 6 Detailing of building components like doors, windows, roof trusses etc. using CAD software’s 7 Exercises on development of working of buildings.