2 solidworks basics

8/19/2019 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


Reference PlanesHint

Rename planes

to be more

descriptive than

“Plane1”, etc.


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More Reference Planes

Toggle planes

on or off for

clarity


Sketch Tips

Locate sketch with respect to originExtra step to move later

Using Symmetry

to Model Pulley

CAD/Fab 2 - Intro to Solid Modeling

7

1. Sketch approximate

half shape

2. Dimension

entities

3. Mirror entities about

vertical centerline


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


1. Model upper half

of pipe 2. Mirror features about

top plane

Hint:

Rename

features

as you

build them


Convert Entities

Converts existing entities into sketch plane

Sketch

plane

Extrude entitity

Edge projected onto sketch plane


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


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


Revolved Cut

Analagous to

turning in a lathe


Profile Path:

3D Sketch Curve

Sweep Following 3D Sketch


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


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


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


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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Deform Features

Flex

Twist


Patterns

Linear or circular patterns simplify creation of

multiple features

Circular Pattern


Linear Pattern

Can pattern in two

orthogonal directions


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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Sheet Metal Parts

Unfolded flat pattern

Final part

Fold lines

Corner

cutouts


Sheet Metal Bends Increase Stiffness

Bending up the edges of this thin

plate a small amount increases its

bending stiffness nearly 7 times


Measurement• Section properties

Area, centroid location, area moment of inertia


Measurement• Volume, mass properties


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Configurations

• Allows the creation of “families” of parts

Use Design Tables to

control configuration

dimensions


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

2 solidworks basics

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