HG91005

The steps for the design of this exercise in AutoCAD are as follows:

Command: LIMITS
Reset Model space limits:
Specify lower left corner or [ON/OFF] <0.00,0.00>: 0,0
Specify upper right corner <420.00,297.00>: 120,90

Command: RECTANGLE
Specify first corner point or [Chamfer/Elevation/Fillet/Thickness/Width]: 0,0
Specify other corner point or [Area/Dimensions/Rotation]: 104,72

Command: EXTRUDE
Current wire frame density:  ISOLINES=4, Closed profiles creation mode = Solid
Select objects to extrude or [MOde]: 1 found
Specify height of extrusion or [Direction/Path/Taper angle/Expression]: 48

Command: LINE
Specify first point:  <Ortho on>
Specify next point or [Undo]: 48
Specify next point or [Undo]: 16
Specify next point or [Close/Undo]: 24
Specify next point or [Close/Undo]: 16
Specify next point or [Close/Undo]: 24
Specify next point or [Close/Undo]: CLOSE

Command: REGION
Select objects: Specify opposite corner: 6 found
1 loop extracted.
1 Region created.

Command: EXTRUDE
Current wire frame density:  ISOLINES=4, Closed profiles creation mode = Solid
Select objects to extrude or [MOde]: 1 found
Specify height of extrusion or [Direction/Path/Taper angle/Expression] <48.00>: -80

Command: SUBTRACT
Select solids, surfaces, and regions to subtract from ..
Select objects: 1 found
Select solids, surfaces, and regions to subtract ..
Select objects: 1 found

HG91004

The steps for the design of this exercise in AutoCAD are as follows:

Command: LIMITS
Reset Model space limits:
Specify lower left corner or [ON/OFF] <0.00,0.00>: 0,0
Specify upper right corner <420.00,297.00>: 60,40

Command: RECTANGLE
Specify first corner point or [Chamfer/Elevation/Fillet/Thickness/Width]: 0,0
Specify other corner point or [Area/Dimensions/Rotation]: @56,32

Command: EXTRUDE
Current wire frame density:  ISOLINES=4, Closed profiles creation mode = Solid
Select objects to extrude or [MOde]: 1 found
Specify height of extrusion or [Direction/Path/Taper angle/Expression]: 20

Command: LINE
Specify first point:  <Ortho on>
Specify next point or [Undo]: 40
Specify next point or [Undo]: 8
Specify next point or [Close/Undo]: 16
Specify next point or [Close/Undo]: 24
Specify next point or [Close/Undo]: 40
Specify next point or [Close/Undo]: 8
Specify next point or [Close/Undo]: 16
Specify next point or [Close/Undo]: CLOSE

Command: REGION
Select objects: Specify opposite corner: 8 found
1 loop extracted.
1 Region created.

Command: EXTRUDE
Current wire frame density:  ISOLINES=4, Closed profiles creation mode = Solid
Select objects to extrude or [MOde]: 1 found
Specify height of extrusion or [Direction/Path/Taper angle/Expression] <20.00>: -12

Command: SUBTRACT
Select solids, surfaces, and regions to subtract from ..
Select objects: 1 found
Select solids, surfaces, and regions to subtract ..
Select objects: 1 found

Command: RECTANGLE
Specify first corner point or [Chamfer/Elevation/Fillet/Thickness/Width]: 20,10
Specify other corner point or [Area/Dimensions/Rotation]: @16,12

Command: EXTRUDE
Current wire frame density:  ISOLINES=4, Closed profiles creation mode = Solid
Select objects to extrude or [MOde]: 1 found
Specify height of extrusion or [Direction/Path/Taper angle/Expression] <-12.00>: -8

Command: SUBTRACT
Select solids, surfaces, and regions to subtract from ..
Select objects: 1 found
Select solids, surfaces, and regions to subtract ..
Select objects: 1 found

HG91003

The steps for the design of this exercise in AutoCAD are as follows:

Command: LIMITS
Reset Model space limits:
Specify lower left corner or [ON/OFF] <0.00,0.00>: 0,0
Specify upper right corner <420.00,297.00>: 150,150

Command: LINE
Specify first point: 0,0
Specify next point or [Undo]: @20,0
Specify next point or [Undo]: @0,74
Specify next point or [Close/Undo]: @60,0
Specify next point or [Close/Undo]: @0,-74
Specify next point or [Close/Undo]: @20,0
Specify next point or [Close/Undo]: @0,90
Specify next point or [Close/Undo]: @-100,0
Specify next point or [Close/Undo]: @0,-90

Command: REGION
Select objects: Specify opposite corner: 8 found
1 loop extracted.
1 Region created.

Command: EXTRUDE
Current wire frame density:  ISOLINES=4, Closed profiles creation mode = Solid
Select objects to extrude or [MOde]: 1 found
Specify height of extrusion or [Direction/Path/Taper angle/Expression]: 80

Command: CYLINDER
Specify center point of base or [3P/2P/Ttr/Elliptical]: 40,40
Specify base radius or [Diameter]: DIAMETER
Specify diameter: 32
Specify height or [2Point/Axis endpoint] <80.00>: 100

Command: SUBTRACT
Select solids, surfaces, and regions to subtract from ..
Select objects: 1 found
Select solids, surfaces, and regions to subtract ..
Select objects: 1 found

Command: FILLET
Current settings: Mode = TRIM, Radius = 2.50
Select first object or [Undo/Polyline/Radius/Trim/Multiple]:
Enter fillet radius or [Expression] <2.50>: 40
4 edge(s) selected for fillet.

Command: CYLINDER
Specify center point of base or [3P/2P/Ttr/Elliptical]: 50,40
Specify base radius or [Diameter] <16.00>: DIAMETER
Specify diameter <32.00>: 80
Specify height or [2Point/Axis endpoint] <100.00>: 24

Command: CYLINDER
Specify center point of base or [3P/2P/Ttr/Elliptical]: 50,40
Specify base radius or [Diameter] <40.00>: DIAMETER
Specify diameter <80.00>: 60
Specify height or [2Point/Axis endpoint] <-24.00>: 24

Command: SUBTRACT
Select solids, surfaces, and regions to subtract from ..
Select objects: 1 found
Select solids, surfaces, and regions to subtract ..
Select objects: 1 found

Command: CYLINDER
Specify center point of base or [3P/2P/Ttr/Elliptical]: 50,40
Specify base radius or [Diameter] <30.00>: DIAMETER
Specify diameter <60.00>: 32
Specify height or [2Point/Axis endpoint] <-24.00>: 16

Command: SUBTRACT
Select solids, surfaces, and regions to subtract from ..
Select objects: 1 found
Select solids, surfaces, and regions to subtract ..
Select objects: 1 found

HG91002

The steps for the design of this exercise in AutoCAD are as follows:

Command: LIMITS
Reset Model space limits:
Specify lower left corner or [ON/OFF] <0.00,0.00>: 0,0
Specify upper right corner <420.00,297.00>: 100,50

Command: LINE
Specify first point: 20,40
Specify next point or [Undo]: @-5,0
Specify next point or [Undo]: @0,-30
Specify next point or [Close/Undo]: @-15,0
Specify next point or [Close/Undo]: @0,-10
Specify next point or [Close/Undo]: @70,0
Specify next point or [Close/Undo]: @0,10
Specify next point or [Close/Undo]: @-15,0
Specify next point or [Close/Undo]: @0,30
Specify next point or [Close/Undo]: @-5,0

Command: XLINE
Specify a point or [Hor/Ver/Ang/Bisect/Offset]: ANG
Enter angle of xline (0) or [Reference]:  45

Command: XLINE
Specify a point or [Hor/Ver/Ang/Bisect/Offset]: ANG
Enter angle of xline (0) or [Reference]:  135

Command: TRIM
Current settings: Projection=UCS, Edge=None
Select cutting edges ...
Select objects or <select all>: 1 found
Select objects: 1 found, 2 total
Select objects: 1 found, 3 total
Select objects: 1 found, 4 total

Command: LINE
Specify first point: 33,18
Specify next point or [Undo]: @4,0

Command: LINE
Specify first point: 33,18
Specify next point or [Undo]: @0,10

Command: LINE
Specify first point: 37,18
Specify next point or [Undo]: @0,10

Command: TRIM
Current settings: Projection=UCS, Edge=None
Select cutting edges ...
Select objects or <select all>: 1 found
Select objects: 1 found, 2 total
Select objects: 1 found, 3 total
Select objects: 1 found, 4 total

Command: REGION
Select objects: Specify opposite corner: 14 found
1 loop extracted.
1 Region created.

Command: EXTRUDE
Current wire frame density:  ISOLINES=4, Closed profiles creation mode = Solid
Select objects to extrude or [MOde]: 1 found
Specify height of extrusion or [Direction/Path/Taper angle/Expression]: 40

HG91001

The steps for the design of this exercise in AutoCAD are as follows:

Command: LIMITS
Reset Model space limits:
Specify lower left corner or [ON/OFF] <0.00,0.00>: 0,0
Specify upper right corner <420.00,297.00>: 100,50

Command: RECTANGLE
Specify first corner point or [Chamfer/Elevation/Fillet/Thickness/Width]: 0,0
Specify other corner point or [Area/Dimensions/Rotation]: @80,20

Command: CIRCLE
Specify center point for circle or [3P/2P/Ttr (tan tan radius)]: 40,20
Specify radius of circle or [Diameter]: 7

Command: TRIM
Current settings: Projection=UCS, Edge=None
Select cutting edges ...
Select objects or <select all>: 1 found
Select objects: 1 found, 2 total

Command: REGION
Select objects: Specify opposite corner: 2 found
1 loop extracted.
1 Region created.

Command: EXTRUDE
Current wire frame density:  ISOLINES=4, Closed profiles creation mode = Solid
Select objects to extrude or [MOde]: 1 found
Specify height of extrusion or [Direction/Path/Taper angle/Expression]: 30

Command: CYLINDER
Specify center point of base or [3P/2P/Ttr/Elliptical]: 10,15
Specify base radius or [Diameter]: DIAMETER
Specify diameter: 10
Specify height or [2Point/Axis endpoint] <30.00>: 20

Command: SUBTRACT
Select solids, surfaces, and regions to subtract from ..
Select objects: 1 found
Select solids, surfaces, and regions to subtract ..
Select objects: 1 found