Chapter 8. Tolerancing

Chapter Objectives

• Understand tolerance conventions

• Understand the meaning of tolerances

• Learn how to apply tolerances

• Understand geometric tolerances

• Understand positional tolerances

Introduction

Tolerances define the manufacturing limits for dimensions. All dimensions have tolerances either written directly on the drawing as part of the dimension or implied by a predefined set of standard tolerances that apply to any dimension that does not have a stated tolerance.

tolerance: The manufacturing limits for dimensions.

This chapter explains general tolerance conventions and how they are applied using Inventor. It includes a sample tolerance study and an explanation of standard fits and surface finishes.

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