Drafting of various geometries using Chamfer, Fillet tool in AutoCad

 

 AIM : To draw the given geometric diagram in AutoCAD with different units of meurement.

 Introduction :- 

 Types of Unit Measurement in AutoCAD :-

   AutoCAD is extremely flexible about drawing units, it lets us have them in our way. AutoCAD’s length unit types are as follows :-

• Architectural units :- These are based in feet and inches and use fractions to represent partial inches. For example, 12′3 1/2″. The base unit is the inch unless otherwise specified, so if you enter a number like 147.5, then AutoCAD will understand it to be 12′3 1/2″.

• Decimal units :- These are not based on any particular real-world unit. With decimal units, each unit in the drawing could represent an inch, a millimeter, a parsec, a furlong, a fathom, or any other unit of measure you deem suitable, from Danish alens to the Swiss zoll. An example would be 15.5.

• Engineering units :- These are based in feet and inches and use decimals to represent partial inches. For example, 12′3.5″.

• Fractional units :- Like decimal units, these are also unitless and show values as fractions rather than decimal numbers. For example 15 1/2.

• Scientific units :- These also unitless and show values as exponents. These are used for drawing really tiny or really large things. If you design molecules or galaxies, this is the unit type for you. Examples would be 15.5E+06 (which is 15,500,000) and 15.5E–06 (which is 0.0000155).

  

 AIM : To draw the given geometry in AutoCAD using decimal units.

 Procedure :-

 Step 1 :-

• In the command box, Type "UNIT" and select decimal unit.
• Now, Type "L" for line command and press enter.
• Specify the Starting point of line as (1,1) in the command box and press enter.
• Specify the next point as (@3,0) in the command box and press enter.
• Specify the next point as (@2.12<45) in the command box and press enter.
• Specify the next point as (@2.83<135) in the command box and press enter.
• Specify the next point as (@-2,0) in the command box and press enter.
• Click on the "close" option from the command box and press enter to cancel the line command.

 Step 2 :-

• Select circle tool from ribbon tab.
• Select "Center, diameter" from the drop-down list.
• Enter the center point as (2.5,2) and press enter.
• Specify the diameter as "1.2" and press enter.
• Again select the circle tool from the ribbon tab.
• Select "Center, diameter" from the drop-down.
• Enter the center point as (2.5,3.5) and press enter.
• Specify the diameter as "0.8" and press enter.

 

 RESULT :-

                   

 

       

               

 

 

 

 AIM : To draw the given geometry in AutoCAD using architectural units.

 Procedure :

 Step 1 :-

• Type "UNITS" in the command box and press enter.
• Select the "type" as architectural.
• Keep the units as "feet".
• Now, Type "L" for line command and press enter and specify the Starting point of line as (1,1) and press enter.
• Specify the next point as (@3'<135) in the command box and press enter.
• Specify the next point as (@2'5"<90) in the command box and press enter.
• Specify the next point as (@8'<0) in the command box and press enter.
• Specify the next point as (@1'9"<270) in the command box and press enter.
• Specify the next point as (@2'10"<225) in the command box and press enter.
• Press "esc".
• Select the line tool from the ribbon tab.
• Specify the starting point as (1,1) in the command box and press enter.
• Specify the next point as (@2'6"<45) in the command box and press enter.
• Type "L" for line command and join the ends of the line to close the geometry.
• Press "esc".

 Step 2 :-

• Type "dimstyle" in the command box and press enter.
• From the "Modify dimension style" tab, select "primary units".
• Select the unit format as "Architectural" and click ok.
• Then Specify the dimensions in the geometry.

 

 RESULT :- 

 

                

 

 

                

 

 

 AIM : To draw the given geometry in AutoCAD using engineering units.

 Procedure :-

 Step 1 :-

• Type "UNITS" in the command box and press enter.
• Select the "type" as engineering.
• Select the units as "feet" and select "ok".
• Select the line tool from the ribbon tab.
• Type "L" for line command and press enter and specify the starting point as (4',4') in the command box and press enter.
• Specify the next point as (@2'6.5"<180) in the command box and press enter.
• Specify the next point as (@3'3"<270) in the command box and press enter.
• Specify the next point as (@5'0.1"<0) in the command box and press enter.
• Specify the next point as (@1'6"<90) in the command box and press enter.
• Click on the "close" option from the command box and press enter to cancel the line command.

 Step 2 :-

• Select circle tool from ribbon tab.
• Select "Center, diameter" from the drop-down.
• Enter the center point as (2'8.5",2'3") and press enter.
• Specify the diameter as (1'6") and press enter.

 

 RESULT :- 

 

                   

 

                    

 

 

 AIM : To draw the given geometry in AutoCAD using decimal units.

 Procedure :-

 Step 1 :-

• Type "UNITS" in the command box and press enter.
• Select the "type" as engineering.
• Select the units as "Meter" and press enter.
• Type "L" for line command and press enter and specify the starting point as (1,4) in the command box and press enter.
• Specify the next point as (@0,-3) in the command box and press enter.
• Specify the next point as (@3,0) in the command box and press enter.
• Specify the next point as (@0,-0.5) in the command box and press enter.
• Specify the next point as (@2.5,0) in the command box and press enter.
• Specify the next point as (@0,2.5) in the command box and press enter.
• Specify the next point as (@-2,0) in the command box and press enter.
• Specify the next point as (@0,3) in the command box and press enter.
• Specify the next point as (@-2.5,0) in the command box and press enter.
• Specify the next point as (@0,-2) in the command box and press enter.
• Click on the "close" option from the command box and press enter to cancel the line command.

 Step 2 :-

• Type "dimstyle" in the command box and press enter.
• From the "Modify dimension style" tab, select "primary units".
• Select the unit format as "Engineering" and click ok.
• Select dimension tool from ribbon tab.
• Specify the first point and second point to measure the dimension.
• Repeat the dimension tool for measuring all the lines.

 

 RESULT :-

 

                    

 

 AIM : To draw the given geometry in AutoCAD using decimal units.

 Procedure :-

 Step 1 :-

• Type "UNITS" in the command box and press enter.
• Select the "type" as engineering.
• Select the units as "Meter" and select ok.
• Type "REC" for rectangle and press enter.
• Specify the starting point as (1,1) and press enter.
• Select "dimensions" in the command box.
• Give length as 11.5 and and press enter
• Give width as 6 and press enter.
• Take the cursor to +x and +y coordinate and click.
• Use "EXPLODE" command to break the rectangle into compaound objects.

 Step 2 :-

• Type command "O" for offset in command box and press enter.
• Specify the offset distance as 3 and press enter.
• Select the left width of the rectangle and then click right side of that width to make offset of width inside the rectangle.
• Select the right width of the rectangle and then click left side of that width to make offset of width inside the rectangle.

 Step 3 :-

• Select circle tool from ribbon tab.
• Select "Center, diameter" from the drop-down.
• Enter the center point as (2.5,4) and press enter.
• Specify the diameter as (1) and press enter.
• Again select circle tool from ribbon tab.
• Select "Center, diameter" from the drop-down.
• Enter the center point as (2.5,4) and press enter.
• Specify the diameter as (2) and press enter.

 Step 4 :-

• Select circle tool from ribbon tab.
• Select "Center, diameter" from the drop-down.
• Enter the center point as (6.75,4) and press enter.
• Specify the diameter as (3) and press enter.

 Step 5 :-

• Press F8 to on the Orthomode.
• Type "CO" in command box for copy.
• Select circles of diameter 1 and circle of diameter 2 for copy.
• Specify center of these circles as Base Point.
• Move the cursor towards +ve X-coordinate and Specify the next point as 8.5 and press enter. 

 

 RESULT :-

                             

 

                           

 

 

 AIM : To draw the given geometry in AutoCAD using decimal units.

 Procedure :-

 Step 1 :-

• Type "UNITS" in the command box and press enter.
• Select the "type" as engineering.
• Select the units as "Meter" and click "ok".
• Type "L" for line command and press enter.
• Specify the starting point as (8,5) in the command box and press enter.
• Specify the next point as (@1.5,0) in the command box and press enter.
• Specify the next point as (@0.5,0) in the command box and press enter. Press "Esc".
• Type "o" and press enter to activate offset command.
• Enter the offset distance as 0.5.
• Select the previously created line and offset the line 2 times in +ve Y-direction.
• Join all the endpoints using the line tool from the ribbon tab.
• Again use the offset command by pressing "o" and set offset distance 0.5.
• Offset the right vertical line in the right side.

              

 

 Step 2 :-

• Press F8 to on the Orthomode.
• Type "CO" in command box for copy.
• Select the bottom horizontal line of 2 unit length to copy.
• Select right end of the line as base point.
• Keep the cursor in downward direction and type 3 and press enter.
• Type "L" for Line command and press enter.
• Select the right end of the copied line as starting point and Specify the next point as (@0,1.5) in the command box and press enter.
• Specify the next point as (@-0.5,0) in the command box and press enter.
• Specify the next point as (@0,-1) in the command box and press enter.
• Specify the next point as (@-1.5,0) in the command box and press enter.
• Specify the next point as (@1.5,1) in the command box and press enter.
• Press enter to escape the line command.

                       

 

 Step 3 :-  

• Press F8 to on the Orthomode.
• Type "CO" in command box for copy.
• Select the right vertical line of 1.5 unit length to copy.
• Select bottom end of the line as base point.
• Keep the cursor in left direction and type 3.5 and press enter.
• Type "L" for Line command and press enter.
• Select the top end of the copied line as starting point and Specify the next point as (@-1.5,0) in the command box and press enter.
• Specify the next point as (@0,-1.5) in the command box and press enter.
• Specify the next point as (@1.5,0) in the command box and press enter.
• Press enter to escape the line command.
• Type "o" and press enter to activate offset command.
• Enter the offset distance as 0.5.
• Select the copied line and offset the line 2 times in -ve X-direction.
• Use trim command to trim the extra lines and press "ecp".

 

 RESULT :-

                               

 

 

                               

 

 

 AIM : To draw the given geometry in AutoCAD using decimal units.

 Procedure :-

 Step 1 :-

• Type "UNITS" in the command box and press enter.
• Select the "type" as engineering.
• Select the unit as "Meter" and press enter.
• Type "L" for Line command and press enter.
• Specify the starting point as (1,1) in the command box and press enter.
• Specify the next point as (@0,100) in the command box and press enter.
• Specify the next point as (@210,0) in the command box and press enter.
• Specify the next point as (@0,75) in the command box and press enter.
• Press "Enter" to cancle line command.
• Type fillet command in command box and press enter.
• Give fillet radius 15 and press enter.
• Select first and second lines to fillet the joining vertice at a radius of 15 unit.
• Again select second and third lines to fillet the joining vertice at a radius of 15 unit.
• press "esc".

 Step 2 :-

• Type "L" for line command and press enter.
• Specify the starting point as (71,1) in the command prompt and press enter.
• Specify the next point as (@0,40) in the command prompt and press enter.
• Specify the next point as (@90,0) in the command prompt and press enter.
• Specify the next point as (@0,-15) in the command prompt and press enter.
• Press "enter" to end line command.
• Type fillet command in command box and press enter.
• Give fillet radius 20 and press enter.
• Select first and second lines drawn in this step and press enter then press "esc".
• Type fillet command in command box and press enter.
• Give fillet radius 6 and press enter.
• Select second and third lines drawn in this step and press enter then press "esc". 

 Step 3 :-

• Select the "circle" tool from the ribbon tab.
• From the drop-down list select "Centre, diameter".
• Specify the center point as (36, O) and press enter.
• Specify the diameter as 50 and press enter.
• Again select the "circle" tool from the ribbon tab.
• From the drop-down list select "Centre, diameter".
• Specify the center point as (186, 26) and press enter.
• Now specify the diameter as 30 and press enter.

 Step 4 :-

• Select "Arc" from the ribbon tab.
• From the drop down list, select " Start, end, radius".
• Specify the start point as(1,1).
• Specify the end point (36,1).
• Enter the radius as "35" in the command prompt and press enter.
• Again select "Arc" from the ribbon tab.
• From the drop down list, select " Start, end, radius".
• Specify the start point as(161,41).
• Specify the end point (211,41).
• Enter the radius as "25" in the command prompt and press enter.

 Step 5 :-

• Select rectangle from ribbon tab.
• Specify the first corner as (21,61) in the command prompt and Select dimensions from the command prompt.
• Enter the length as 70 and width as 30. Press "esc".
• Again Select rectangle from ribbon tab.
• Specify the first corner as (121,61) in the command prompt and select dimensions from the command prompt.
• Enter the length as 70 and width as 30. Press "esc".

 

 RESULT :-

 

                       

 

                         

 

 

 AIM : To draw the given geometry in AutoCAD using decimal units.

 Procedure :-

 Step 1 :-

• Select the "circle" tool from the ribbon tab.
• From the drop-down list select "Centre, diameter".
• Specify the center point as (1,1) and press enter.
• Now specify the diameter as "0.9" and press enter.
• Again select the "circle" tool from the ribbon tab.
• From the drop-down list select "Centre, diameter".
• Specify the center point as (5.275,0) and press enter.
• Now specify the diameter as "4" and press enter.
• Again select the "circle" tool from the ribbon tab.
• From the drop-down list select "Centre, diameter".
• Specify the center point as (5.275,0) and press enter.
• Now specify the diameter as "5" and press enter.
• Again select the "circle" tool from the ribbon tab.
• From the drop-down list select "Centre, diameter".
• Specify the center point as (9.55,0) and press enter.
• Now specify the diameter as 0.9 and press enter.

 Step 2 :-

• Select the "circle" tool from the ribbon tab.
• From the drop-down list select "Centre, radius".
• Specify the center point as (1,1) and press enter.
• Now specify the radius as "0.9" and press enter.
• Again select the "circle" tool from the ribbon tab.
• From the drop-down list select "Centre, radius".
• Specify the center point as (9.55,0) and press enter.
• Now specify the radius as "0.9" and press enter.

 Step 3 :-

• Now type "L" for line command and press enter.
• From the object snap, tick on the tangent option.
• Draw tangent lines to the outer circle of radius 0.9 to inner circle of diameter 5.
• Repeat this in other side as well.
• By using trim command, trim the extra lines left.

 RESULT :-

 

                              

 

                        

 

 

  AIM : To draw the given geometry in AutoCAD using engineering units.

 Procedure :-

 Step 1 :-

• Select the "circle" toolfrom the ribbon tab.
• From the drop-downlist select "Centre, radius".
• Specify the center point as (1',1') and press enter.
• Now specify the radius as 8' and press enter.
• Again select the "circle" tool from the ribbon tab.
• From the drop-down list select "Centre, radius".
• Specify the center point as (33'6",1') and press enter.
• Now specify the diameter as 9' and press enter.

 Step 2 :-

• Now type "O" for the offset command and press enter.
• Take the offset of two circles, with offset distance as (20'10"). 
• The offseted cicles are intersected at top and at bottom.
• Type "C" and press enter.
• Specify the center point at the intersection of offsetted circles at bottom.
• Specify the radius as (20'10"). and press enter.
• The circle makes tangent with the first two circles.
• Use trim command and remove other objects except first two circles and tangent.

                    

 Step 3 :-

• Type "C" and press enter.
• Specify the center point at the center of 9' circle and draw circle of radius (32'8") and press enter.
• Again type "C" and press enter.
• Specify the center point at the center of 8' circle and draw circle of radius (33'8") and press enter.
• Again type "C" and press enter.
• Specify the center point at the bottom intersection point of two drawn circles.
• Specify the radius as (41'8") and press enter.
• As the tangents curve form in the above two circles.
• Again use the trim command and trim the extra lines and arcs.

 RESULT :-

 

                      

 

                      

 

 AIM : To draw the given geometry in AutoCAD using decimal units.

 Procedure :-

 Step 1 :-

• Type "REC" in the command box and press enter.
• Specify the first point as (1,1).
• Click on dimension option and specify length as 5 unit and width as 5 unit.
• Keep the cursor above and click in +ve x- and y- coordinates.
• Now type "O" for offset and press enter.
• Specify offset distance as 0.2 and press enter.
• Select the rectangle and click outside the rectangle to draw offset.

 Step 2 :-

• Select the whole objects and Type "CO" for copy.
• Specify the base point and copy it.
• Use the "RO" command to rotate the copied object at an angle of 45 degree.
• And the use "MO" command to move the copied object at the desired place.
• Now use the trim command to trim the extra lines.

     

 RESULT :- 

                       

 

                     

 

 

 AIM : To draw the given geometry in AutoCAD using engineering units.

 Procedure :-

 Step 1 :-

• Type "L" in the command box for line command and press enter.
• Specify the first point as (5',5').
• Draw a line unit of 20'-4" in +ve x-direction.
• Continue to line command, draw a line in -ve y-direction of unit 9'.
• Continue to line command, draw a line in -ve x-direction of unit 3'.
• Continue to line command, draw a line in -ve y-direction of unit 4'-6".
• Continue to line command, draw a line in -ve x-direction of unit 4'-6".
• Continue to line command, draw a line in +ve y-direction of unit 1'-2".
• Continue to line command, draw a line in -ve x-direction of unit 5'4".
• Continue to line command, draw a line in -ve y-direction of unit 1'2".
• Continue to line command, draw a line in -ve x-direction of unit 4'6".
• Continue to line command, draw a line in +ve y-direction of unit 4'6".
• Continue to line command, draw a line in -ve x-direction of unit 3'.
• Click "close" in command box and press enter to cancel line command.

 Step 2 :-

• Type "L" in the command box and press enter for line command.
• Specify the first point as (8',5').
• Specify the next point as (@2'8"<315) in the command box and press enter.
• Specify the next point as (@2'8"<45) in the command box and press enter.
• Press enter to cancel the line command.
• Type "L" in the command box and press enter for line command.
• Specify the first point as (22'4",5').
• Specify the next point as (@3'7"<240) in the command box and press enter.
• Specify the next point as (@3'7"<120) in the command box and press enter.
• Press enter to cancel the line command.
• Type "L" in the command box and press enter for line command.
• Use trim command to trim the extra lines.

               

 

 Step 3 :- 

• Select rectangle from ribbon tab.
• Specify the first point as (13'8",-3'3") in command box and press enter.
• Select the dimension from command box.
• Specify length as 3' and width as 3' and press enter.
• Keep the cursor in +ve x- and +ve y- direction and click the mouse button.
• Now turn the object snap mode on and tick the geometric center option from osnap setting.
• Type "MO" for move command and select the base point as the geometric center of center square.
• And type the rotation angle degree.
• Press "ESC". 

 

 RESULT :-