Welcome to Solidworks Look at what we can do now Computer-Aided - - PowerPoint PPT Presentation

Welcome to Solidworks

Look at what we can do now…

Computer-Aided Drafting (CAD) Virtual Reality Stress Analysis

Compared to back when…

๏ OLD (1970-1990)

–Technical Pen –Templates –Pencil (0.5 mm)

๏ OLDER (pre 1970)

–Ruling Pen –Compass –Pencil (2mm)

Computer-Aided

Drafting (CAD) Manufacturing (CAM)

Rendering and Animation

2008: Xbox 360 2017: Xbox One X

Solid Modeling

๏ Defined by:

• Boundary representation (B-rep)
• connected surfaces create an

inside and outside of the part

๏ Have these properties:

• Mass
• Volume
• Moment of inertia

Applications of Solid Modeling (Solidworks):

• Engineering (perform structural, thermal, etc. analysis on model)
• FEM: Finite Element Method-breaking part into smaller, less

complex parts that can be better analyzed

• Manufacturing (allows Computer-Aided Manufacturing program to design

the way a product will be made)

Mesh Modeling

๏ Defined by:

• Edges
• Polygonal faces

๏ No mass property ๏ Advantages:

• Smoothness
• Shading

Applications of Mesh Modeling (Maya)

• Film and Advertising Industries (animations look great with mesh models)
• Medical Field (mesh models of human anatomy)

Coordinate System

๏ Cartesian

Primitive Shapes

๏ Critical to know basic shapes in order to accurately

represent the part that is being modeled

Some Properties to keep in mind…

Extruding a primitive shape allows you to make some of these 3D objects…

One of the basic steps…Extrusion

๏ Linear Extrusion: starts with closed polygon (profile) drawn

• n a plane, and then swept along a defined path for a

defined length

Constraints

๏ Defined as a limitation or restriction ๏ Apply constraints to any geometry drawn in Solidworks (under

the discretion of the user)

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*Constraints in Solidworks look like this.

Implicit Constraints

๏ Geometric relationships

implied by the way the profile is drawn and interpreted by Solidworks

• Note: Solidworks only makes

closed profiles, so your profiles must have closure.

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More Implicit Constraints

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Explicit Constraints

๏ Defined by the operator

• Dimensional constraints: assigning a specific

length to a line, radius to a circle, etc.

• Geometric constraints: specifying the ways in

which lines/shapes/features relate to one another

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Levels of Constraint

๏ Fully constrained

• Every element has been completely dimensioned/specified

๏ Underconstrained

• Not all elements are dimensioned/specified (leaves interpretation up to

Solidworks)

๏ Overconstrained

• Adding a new constraint would conflict with existing constraints (Solidworks

won’t let another dimension be added)

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Example of an Overconstrained Sketch

Driven Dimension: is driven by the model *Changing the model changes this driven dimension value Driving Dimension: drives the model *Changing this driving dimension changes the model

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Center point

• f line

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Path-based and Revolute Extrusions allow you to make some of these 3D objects….

Path-based Extrusion

๏ Sweep: create a profile and

define its path to be extruded along

Revolute Extrusions

๏ Start with a drawn profile and define an axis of rotation

about which the profile is rotated for a defined angle.

Activity

๏ Complete the Lesson 1: Parts tutorial

• How to get there: Tutorials>Getting

Started>Lesson 1: Parts

๏ Complete Revolves and Sweeps

tutorial

• How to get there: Tutorials>Basic

Techniques>Revolves and Sweeps

Let me know if you have any questions!