Introduction to SolidWorks

Lesson 6 – Editing Parts

Section II – Modeling Simple Parts 6.1 Lesson Objectives

Lesson 6 – Editing Parts

6.1 Lesson Objectives

After completing this Lesson, you will be able to:

 Edit SolidWorks part models.

 Explain and use the Roll-Back Bar.

 Explain why the Wheel Sub-assembly was not created as a single part.

 Explain and use the command Circular Pattern.

6.2 Introduction

One of the reasons for the widespread use of CAD software is the increase in productivity that
can be achieved with their use. Before CAD, making a change required erasing the old
geometry very carefully to avoid untidiness, and then adding the new geometry. If the new
geometry did not fit in the space available, the change could require a new drawing. With
SolidWorks, old models can be changed and re-used easily.

6.3 Adding Bumps to the Wheel

To get good mechanical grip between the wheel and the tire, we will add bumps to the outside
surface of the wheel. These will prevent the tire from slipping around the wheel and will match
the pockets in the rubber tire.

Step 33: Click FileOpen to open the Wheel Part document.

Step 34: Move the Roll-Back Bar below the Revolve feature. This will allow the creation of the
bumps before the spacer.

 Move the mouse cursor over the line and it will change into a hand.

 Click and drag the line to the new location after the Revolve feature.

 The Chamfer feature changes to gray.

Step 35: Select the Front Plane as the sketch plane and click the Sketch command on the
Sketch tab.

Step 36: Use the Rectangle tool to sketch Figure 6.1.