Drafting of various geometries using Chamfer, Fillet tool in AutoCad

AIM:

Drafting of various geometries using Chamfer, Fillet tool in AutoCad

Figure:1

Procedure:

Steps:

• Type 'L' in the command box and press enter
  • Specify first point: 1,1
  • Specify next point: @3<0
  • Specify next point: @2.12<45
  • Specify next point: @2.83<135
  • Specify next point: @2<180
  • type close
• Type 'C' in the command box and press enter
  • Specify center point for circle: 2.5,2
  • Specify radius of circle: 0.6
  • press enter
• Type 'C' in the command box and press enter
  • Specify center point for circle: 2.5,3.5
  • Specify radius of circle: 0.4
  • press enter
• Give dimensions as per drawing using dimension command from the command bar

Result:

Figure 2:

Procedure

Steps:

• Type 'UN' in the command box and press enter
• Select the Architectural Unit for length
• Type 'L' in the command box and press enter
  • Specify first point: 2,6
  • Specify next point: @8'<0
  • Specify next point: @1'-9"<270
  • Specify next point: @2'-10"<225
  • Specify next point: @2'-4"<180
  • Specify next point: @2'-6"<210
  • Specify next point: @3'<120
  • Type close and enter
• Type 'D' and press enter
  • select modify option
  • Select the unit format to Architectural In primary units
• Give dimensions as per drawing using dimension command from the command bar

Result:

Figure 3:

Procedure:

Steps:

• Type 'UN' and press enter
• Select the unit system for length as 'Engineering'
• Type 'L' and press enter
  • Specify first point: 1',1'
  • Specify next point: @5'-0.1",0'
  • Specify next point: @0',3'-3.0"
  • Specify next point: @-5'-0.1",0'
  • type close and enter
• Type 'cha' and enter
  • Select distance option
  • Specify first chamfer distance: 1'-9"
  • Specify second chamfer distance: 2'-5.6"
  • Select the lines and press enter
• Type 'c' and enter
  • Specify the center point: 2'-3.0",2'-6.0"
  • Select the diameter option
  • Specify Diameter of circle: 1'-6.0"
• Type po and enter
  • select the center point of circle and change the point type to plus from DDTYPE(PTYPE)
• Type 'd' and enter
  • Select modify
  • Select unit format as 'Engineering' in primary units option
• Give dimensions as per drawing using dimension command from the command bar

Result:

Figure 4:

Procedure:

Steps:

• Type 'L' and press enter
  • Specify first point: 2,2
  • Specify next point: @0,3
  • Specify next point: @1,0
  • Specify next point: @0,2
  • Specify next point: @2.5,0
  • Specify next point: @0,-3
  • Specify next point: @2,0
  • Specify next point: @0,-2.5
  • Specify next point: @-2.5,0
  • Specify next point: @0,0.5
  • type close and press enter
• Give dimensions as per drawing using dimension command from the command bar

Result:

Figure 5:

Procedure:

Steps:

• Type 'L' and enter
  • Specify first point: 2,2
  • Specify next point: @11.50,0
  • Specify next point: @0,6
  • Specify next point: @-11.50,0
  • type close and enter
• Type 'L' and enter
  • Specify first point: 5,2
  • Specify next point: @0,6
  • press enter
• Type 'L' and enter
  • Specify first point: 10.5,2
  • Specify next point: @0,6
  • press enter
• Type po and enter
  • Specify a point: 3.5,5
  • repeat po command and give point: 12,5
• Type c and enter
  • Specify center point for circle: 3.5,5
  • select diameter option
  • Specify diameter of circle: 2
• Type c and enter
  • Specify center point for circle: 3.5,5
  • select diameter option
  • Specify diameter of circle: 1
• Type c and enter
  • Specify center point for circle: 12,5
  • select diameter option
  • Specify diameter of circle: 2
• Type c and enter
  • Specify center point for circle: 12,5
  • select diameter option
  • Specify diameter of circle: 1
• Type c and enter
  • Specify center point for circle: 7.75,5
  • select diameter option
  • Specify diameter of circle: 3
• Give dimensions as per drawing using dimension command from the command bar

Result:

Figure 6:

Procedure:

Steps:

• First fig:
  • Type 'L' and enter
    • Specify first point: 2,2
    • Specify next point: @1.5,0
    • Specify next point: @0,1.5
    • Specify next point: @-1.5,0
    • type close and enter
  • Type 'L' and enter
    • Specify first point: 2,2.5
    • Specify next point: @1.5,0
    • press esc
  • Type 'L' and enter
    • Specify first point: 2.5,2.5
    • Specify next point: @0,1
    • press esc
  • Type 'L' and enter
    • Specify first point: 3,2.5
    • Specify next point: @0,1
    • press esc
• Second fig:
  • Type 'L' and enter
    • Specify first point: 5,2
    • Specify next point: @2,0
    • Specify next point: @0,1.5
    • Specify next point: @-0.5,0
    • Specify next point: @0,-1
    • Specify next point: @-1.5,0
    • Type close and enter
  • Type 'L' and enter
    • Specify first point: 5,2.5
    • Specify next point: 6.5,3.5
    • press esc
• Third fig:
  • Type 'L' and enter
    • Specify first point: 5,4.5
    • Specify next point: @2,0
    • Specify next point: @0,1.5
    • Specify next point: @-2,0
    • type close and enter
  • Type 'L' and enter
    • Specify first point: 6.5,4.5
    • Specify next point: @0,1.5
  • Type 'L' and enter
    • Specify first point: 5,5
    • Specify next point: @1.5,0
  • Type 'L' and enter
    • Specify first point: 5,5.5
    • Specify next point: @1.5,0
• Give dimensions as per drawing using dimension command from the command bar

Result:

Figure 7:

Procedure:

Steps:

• Type 'L' and enter
  • Specify first point: 30,150
  • Specify next point: @210,0
  • Specify next point: @0,-75
  • Specify next point: @-50,0
  • Specify next point: @0,15
  • Specify next point: @-90,0
  • Specify next point: @0,-40
  • Specify next point: @-70,0
  • type close

• Use trim tool to trim lines between a-b &c-d
• Type fillet and enter
  • Select radius option
  • Specify radius of fillet: 35
  • Select the lines of a and b
  • press enter
• Type fillet and enter
  • Select radius option
  • Specify radius of fillet: 25
  • Select the lines of c and d
  • press enter

• Use fillet command and give fillets at e, f, g & h
  • At E & F fillet radius: 15
  • At G fillet radius: 20
  • At H fillet radius: 6
• Select multiple point option from draw ribbon
  • Specify a point: 65,50
  • Specify a point: 215,75

• Type c and enter
  • Specify center point of circle: 65,50
  • Select the diameter option
  • Specify diameter of circle: 50
• Type c and enter
  • Specify center point of circle: 215,75
  • Select the diameter option
  • Specify diameter of circle: 30
• Type rec and enter
  • Specify first corner point: 50,110
  • Select dimensions
  • Specify length for rectangle: 70
  • Specify width for rectangle: 30
  • Specify other corner point: 120,140
• Type rec and enter
  • Specify first corner point: 150,110
  • Select dimensions
  • Specify length for rectangle: 70
  • Specify width for rectangle: 30
  • Specify other corner point: 220,140
• Give dimensions as per drawing using dimension command from the command bar

Result:

Figure 8:

Procedure:

Steps:

• Select the multiple point option from draw ribbon
  • specify a point: 3.725,5
  • Specify a point: 8,5
  • Specify a point: 12.275,5
• Type 'c' and enter
  • Specify center point for circle: 3.725,5
  • Select diameter option
  • Specify diameter of circle: 0.90
  • press enter
• Type 'c' and enter
  • Specify center point for circle: 3.725,5
  • Specify radius of circle: 0.90
  • press enter
• Type 'c' and enter
  • Specify center point for circle: 8,5
  • Select diameter option
  • Specify diameter for circle: 5
  • press enter
• Type 'c' and enter
  • Specify center point for circle: 8,5
  • Select diameter option
  • Specify diameter for circle: 4
  • press enter
• Type 'c' and enter
  • Specify center point for circle: 8,5
  • Select diameter option
  • Specify diameter for circle: 5
  • press enter
• Type 'c' and enter
  • Specify center point for circle: 12.275,5
  • Select diameter option
  • Specify diameter of circle: 0.90
  • press enter
• Type 'c' and enter
  • Specify center point for circle: 12.275,5
  • Specify radius of circle: 0.90
  • press enter
• Select the tangent option from osnap settings
• Type 'L' and Draw tangents connecting with outer circles
• Use trim option to trim the inner portion of side circles

Result:

• Give dimensions as per drawing using dimension command from the command bar

Figure 9:

Prcedure:

Steps:

• Type 'UN' and press enter
• Select the unit system for length as 'Engineering'
• Select multiple points option from draw ribbon
  • specify a point: 20',15'
  • Specify a point: 52'-6",15'
• Type 'c' and enter
  • Specify center point for circle: 20',15'
  • Specify radius of circle: 8'-0"
  • press enter
• Type 'c' and enter
  • Specify center point for circle: 52'-6",15'
  • Specify radius of circle: 9'-0"
  • press enter
• Use Arc command and make 2 Arcs connecting both circle with different radius
  • Radius of upper arc: 41'-8"
  • Radius of bottom arc: 20'-10"
• Use trim tool to trim the inner portion of circle
• Give dimensions as per drawing using dimension command from the command bar

Result:

Figure 10:

Procedure:

Steps:

• Select the polygon command
  • Enter the number of side: 4
  • Specify center point of polygon : 20,20
  • Select Inscreibed in circle
  • Specify radius of circle: 10
• Use offset command and offset the polygon at a distance of 1 unit
• select rotate option from home tab
  • Select objects
  • Select the copy option
  • Specify rotation angle: 45
• use trim tool to trim lines as shown in fig

Result:

Figure 11:

Procedure:

Steps:

• Type 'UN' in the command box and press enter
• Select the Architectural Unit for length
• Type l and enter
  
  • Specify first point: 3',16'
  • Specify next point: @0',-9'
  • Specify next point: @3',0'
  • Specify next point: @0',-4'-6"
  • Specify next point: @4'-6",0'
  • Specify next point: @0',1'-2"
  • Specify next point: @5'-4",0'
  • Specify next point: @0',-1'-2"
  • Specify next point: @4'-6",0'
  • Specify next point: @0',4'-6"
  • Specify next point: @3',0'
  • Specify next point: @0',9'
  • Type close
• Type l and enter
  • specify first point: 8'-3",16'
  • Specify next point: @0',-2'-8"
  • press esc
• Type l and enter
  • specify first point: 18'-1",16'
  • Specify next point: @0',-3'-7"
  • press esc
• Now use xline option and make lines at an angle of 45 and 30
• Now use trimk option to trim the unwanted lines
• Use rectangle option to make a square of 3' at the center of the figure at an angle of 45 degree
• Give dimensions as per drawing using dimension command from the command bar

Result: