Day One

• Introduction

  • People

  • The business of tolerancing

•  GD&T Review

  • SLOF and FOS

  • Graphical view of inner and outer boundaries

  • VC and RC

•  Types of Stacks

•  The Basic Stack Method

  • Max/Min Stacks

    • Identify the problem

    • Identity the path

    • Enter the data into the spreadsheet

    • Exercises

  • Nominal/Plus/Minus Stacks

    • Nominal vs. limit tolerancing

    • Exercises

•  Assembly Stacks Using Coordinate Dimensions

  • Basic method

  • Exercises

•  Stacking Location-Related Controls

  • Position – RFS: TP (true position) 

  • Circular Runout

  • Total Runout

  • Exercises

•  Stacking Profile Tolerances

  • Surface profile: TPR (true profile)

  • Actual surface/extreme surface boundary (ESB)

  • Equal bilateral 

  • Exercises

Day Two​

• Using the unequal symbol

• Exercises

•  Stacking Form Controls

  • Feature of size:  and –

  • Exercise

  • Surface 

  • Exercises using assembly stacks

  • Other surface controls

•  Stacking Position with MMC 

  • Calculating bonus

  • Entering bonus into the spreadsheet

  • Exercises

  • Alternate method: cartoon gages

  • Composite 

  • Exercises

  • Two single-segment

  • Exercises

•  Stacking Position with MMB 

  • Calculating datum shift

    • Geometric contribution

    • Size contribution

  • Entering datum shift into the spreadsheet

  • Exercises

  • Alternate method: cartoon gages

Day Three (half-day)

• Statistical Stacks: Approaches

  • Arithmetic vs. statistical approach

  • RSS

  • MRSS - “Benderizing”

  • Monte-Carlo

  • Tolerance optimization

• Application to Client’s Designs 

  • Design goal

  • Stack path

  • Entering data

  • Interpreting results

  • Optimizing the design

• Business of Tolerancing: Establishing a Common Stack Approach (Optional)

  • Review existing approaches

  • Create a common template

  • Deciding what must be uniform

  • Implementation plan