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Chapter 4 3D Solid Modeling 1
Chapter 43D Solid Modeling4.1 Step-by-Step: Beam Bracket
4.2 Step-by-Step: Cover of Pressure Cylinder
4.3 Step-by-Step: Lifting Fork
4.4 More Details
4.5 More Exercise: LCD Display Support
4.6 Review
Chapter 4 3D Solid Modeling Section 4.1 Beam Bracket 2
Section 4.1Beam Bracket
Problem Description
The beam bracket is made of WT8x25 steel.
X
Y
Z
Chapter 4 3D Solid Modeling Section 4.1 Beam Bracket 3
• Local coordinate systems
• Sketching with plane view
versus in 3D view
• Use of Triad
• Add Material
• Rounds/Fillets
• Turn on/off edges display
Techniques/Concepts
Chapter 4 3D Solid Modeling Section 4.2 Cover of Pressure Cylinder 4
Section 4.2Cover of Pressure Cylinder
Problem Description
[1] Pressure cylinder.
[2] Cylinder Cover.
[3] Back view of the cover.
Chapter 4 3D Solid Modeling Section 4.2 Cover of Pressure Cylinder 5
30.3
25.3
21.0 1.3
31.
0
3.0 10.0
R8.5 R7.5
R19.0
Unit: mm. 62.0
2.3 1.6 7.4
R4.9 R3.2
R9.0 R14.5 R18.1
R25.4
R27.8
7.4
62.
0
R3.4
Chapter 4 3D Solid Modeling Section 4.2 Cover of Pressure Cylinder 6
Techniques/Concepts
• Create new planes
• Set up local coordinate systems
• Plane with boundary
• Modify>Duplicate
• Cut Material
Chapter 4 3D Solid Modeling Section 4.3 Lifting Fork 7
Section 4.3Lifting Fork
Problem Description[1] Fork (steel).
[2] Glass panel (1.0 mm).
Chapter 4 3D Solid Modeling Section 4.3 Lifting Fork 8
Unit: mm.
220
0
2500
2400
200
200
1600
[1] The cross section here is 160x40 mm.
[2] The cross section here is 130x20 mm.
[3] The cross section here is 100x10 mm.
Chapter 4 3D Solid Modeling Section 4.3 Lifting Fork 9
Techniques/Concepts
• Skin/Loft
• Lofting guide line
• Add Frozen
• Copy bodies (Pattern)
• Boolean
• Create 3D surface bodies
Chapter 4 3D Solid Modeling Section 4.4 More Details 10
• Triad
• Isometric View
• Rotation
• Selection Filters
• Extend Selection
• Selection Panes
• Edge Display
• Tools for 3D
features
Section 4.4 More Details
Chapter 4 3D Solid Modeling Section 4.4 More Details 11
Triad
[1] Click an arrow will orient the
view normal to that arrow.
[2] A black arrow represents
a negative direction.
[4] Click the cyan sphere to return to the
isometric view.
[3] If the cyan sphere coincides with the origin, that means the view is an
isometric view.
Chapter 4 3D Solid Modeling Section 4.4 More Details 12
Rotations
[1] Hold the middle mouse button down while moving around the graphic
area, you can rotate the model.
[2] Free rotation.
[3] Roll, rotation about screen Z-axis.
[4] Yaw, rotation about
screenY-axis.
[5] Pitch, rotation about screen X-axis.
[6] The type of rotation depends on the location of the cursor.
Chapter 4 3D Solid Modeling Section 4.4 More Details 13
Selection Aides
• Selection Filters
• Extend Selectin
• Selection Panes
Chapter 4 3D Solid Modeling Section 4.4 More Details 14
Bodies and Parts
• A body is entirely made of one kind of material and is the basic building blocks of a model.
• A 3D body is either a solid body, a surface body, or a line body.
• A part is a collection of same type of bodies. All bodies in a part are assumed to be bonded together with one another.
• In <Mechanical>, parts are meshed independently
• A model may consist of one or more parts.
• In <Mechanical>, connections (contacts, joints) among parts must be established to complete a model.
This is the only geometric
entities that will be attached to
<Mechanical> for simulations.
Chapter 4 3D Solid Modeling Section 4.4 More Details 15
FeaturesFeatures• Based Features
• Extrude• Revolve• Sweep• Skin/Loft• Surface• Lines• Point• etc.
• Placed Features• Thin/Surface• Blend• Chamfer• etc.
• Planes• Operations• etc.
Chapter 4 3D Solid Modeling Section 4.5 LCD Display Support 16
Section 4.5LCD Display Support
Problem Description
Chapter 4 3D Solid Modeling Section 4.5 LCD Display Support 17
200
80
60
10 5
0 4
2
17
Unit: mm
Chapter 4 3D Solid Modeling Section 4.5 LCD Display Support 18
• Revolve
• Skin/loft
• Thin/Surface
Techniques/Concepts