2 solidworks basics
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Introduction to Solid Modeling
Using SolidWorks
Camper model
by Ken FernalldCAD/Fab 2 - Intro to Solid Modeling 2
SolidWorks On-Line
Tutorials• A good place to start
• Each lesson takes~30 min.
I use Help
a lot!
CAD/Fab 2 - Intro to Solid Modeling 3
Sketches
• 2D – On a standard view plane
• Front, top, right
– On a planar face of a part that was previouslyconstructed
• Look for face selection icon:
• Can filter for entity type to select:
– On an inserted reference plane
• 3D
CAD/Fab 2 - Intro to Solid Modeling 4
Reference PlanesHint
Rename planes
to be more
descriptive than
“Plane1”, etc.
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CAD/Fab 2 - Intro to Solid Modeling 5
More Reference Planes
Toggle planes
on or off for
clarity
CAD/Fab 2 - Intro to Solid Modeling 6
Sketch Tips
Locate sketch with respect to originExtra step to move later
Using Symmetry
to Model Pulley
CAD/Fab 2 - Intro to Solid Modeling
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1. Sketch approximate
half shape
2. Dimension
entities
3. Mirror entities about
vertical centerline
CAD/Fab 2 - Intro to Solid Modeling 8
Sketch Mirror Tools
• Mirror – Mirrors existing entities about reference line
• Dynamic Mirror – Mirrors future entities about reference line
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Mirror Features on Pipe T
CAD/Fab 2 - Intro to Solid Modeling 9
1. Model upper half
of pipe 2. Mirror features about
top plane
Hint:
Rename
features
as you
build them
CAD/Fab 2 - Intro to Solid Modeling 10
Convert Entities
Converts existing entities into sketch plane
Sketch
plane
Extrude entitity
Edge projected onto sketch plane
CAD/Fab 2 - Intro to Solid Modeling 11
1. If you can buy it – don’t make it!
2. If you can download it
– don’t model it!
Carlson’s Laws ofMechanical Design
Sprocket
CAD/Fab 2 - Intro to Solid Modeling 12
Third Party SoftwareSoftware is available from other vendors for
commonly used mechanical components
e.g. GearTrax can mo
del:
• Spur gears
• Helical gears• Bevel gears• Worm gears• Sprockets• Gear pulleys• V-belt pulleys
Bevel gears
GearTrax is available on ITLL
computers
(click on Camnetics)
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Analagous to broaching
a keyway
Extruded Cut
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Revolved Cut
Analagous to
turning in a lathe
CAD/Fab 2 - Intro to Solid Modeling 15
Profile Path:
3D Sketch Curve
Sweep Following 3D Sketch
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Capitalize on Symmetry
Second half mirrored
about right plane
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Loft Feature
Profile 1
Profile 2
Guide curve 1
Guide curve 2
Solid Loft
CAD/Fab 2 - Intro to Solid Modeling 18
Complex Lofts
Lofts may have multiple profiles
and multiple guide curves
Cessna 206G airplane body
Jacob Mallett
Take advantage of symmetry –
Half body mirrored about center
plane to form complete body
CAD/Fab 2 - Intro to Solid Modeling 19
Extruding Solid ObjectsIn order of increasing capability/complexity
• Boss-extrude – Constant cross-section
– Single direction ( ┴ sketch
plane)• Sweep
– Constant cross-section
– Single 3D guide curve
• Loft – Varying cross-section
– Multiple 3D guide curves
All of these features can create cuts
CAD/Fab 2 - Intro to Solid Modeling 20
Shell Feature• Useful for injection molded plastic parts
1. Model
as solid
2. Cut in
half
4. Add ribs,
swept cuts
3. Shell
out half
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CAD/Fab 2 - Intro to Solid Modeling 21
Deform Features
Flex
Twist
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Patterns
Linear or circular patterns simplify creation of
multiple features
Circular Pattern
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Linear Pattern
Can pattern in two
orthogonal directions
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Buildin
g a Complex Model
2. Mirror about center plane
3. Linear pattern 125X
4. Add remaining features
1. Model half groove
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CAD/Fab 2 - Intro to Solid Modeling 25
Sheet Metal Parts
Unfolded flat pattern
Final part
Fold lines
Corner
cutouts
CAD/Fab 2 - Intro to Solid Modeling 26
Sheet Metal Bends Increase Stiffness
Bending up the edges of this thin
plate a small amount increases its
bending stiffness nearly 7 times
CAD/Fab 2 - Intro to Solid Modeling 27
Measurement• Section properties
Area, centroid location, area moment of inertia
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Measurement• Volume, mass properties
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CAD/Fab 2 - Intro to Solid Modeling 29
Configurations
• Allows the creation of “families” of parts
Use Design Tables to
control configuration
dimensions
CAD/Fab 2 - Intro to Solid Modeling 30
Equations
rib
angle
wedge angle
Relationship is maintained
as angle changes
Rename dimensions to
make equations make
sense later!
CAD/Fab Orthographic Projection 31
From the annual SolidWorks student contestSolidWorks Example
Binoculars
F „01 1st place
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