logo

Introduction 

Back      Next

 

This chapter will describe the Top-Down Design methodology and available tools in Creo Parametric to accomplish this. It  also compares the Top-Down design with Bottom-Up design technique.

Typical workflow of Top-Down Design will be explained in theory and also with the help of practical examples.

    

EXERCISE 1

In this exercise we will learn how to create a simple assembly of parts that are driven by skeleton model.

The topics covered are as follows.

  • Creating Skeleton
  • Assembling the components
  • Using Copy Geometry feature to communicate references
  • Creating model geometry

We will see how to achieve the following goals for the shown assembly of components.

  • Both components should be equal in length and width
  • The shape of the mating surfaces should be same
  • There should be two holes in each component; the diameter of holes should be same and their axis aligned.

 

  

Assembly of Finished Components

 

Cross-section showing shape of mating surfaces

 

EXERCISE 2

In this exercise we will create a simple housing consisting of two parts.

The topics covered are as follows.

  • Understanding what geometry needs to be created in Skeleton model
  • Using Publish Geometry and Copy Geometry features to communicate references
  • Creating model geometry by using references copied from skeleton
  • Creating Interlock details in both components driven by geometry in skeleton

We will see how to achieve the following goals for the shown assembly of components using TDD.

  • Profile of both components should be same
  • Two rectangular holes in the side walls of the components should be aligned and of same width.
  

Assembly of Finished Components





Cross-Section of Assembly showing Interlock Details

 

Back      Next

 

 

Quick Links

Creo Tool Design Tutorials

Creo NC Tutorials

Surface Modeling Tutorials

Top-Down Design Tutorials

Downloads


Contents for TDD

Testimonials

"Presentation of the tutorials is clear and includes every step -- which is a refreshing change from a lot of tutorials which contain annoying procedural gaps. One bonus! it also helped me make the long-delayed leap from ProE2001 to Wildfire (3) easily."

Patrick McGrath
ASIA MECHATRONICS

7F, 147, Sec. 2 Yung Ho Road
Yung Ho, Taipei 234, Taiwan