GeoTol Pro Fundamentals Program

This Program is available in multiple formats. For Program Details, click on one or all of the following:

Program Outline

  • Introduction to Geometric Dimensioning and Tolerancing:
    • General overview, geometric characteristic symbols, rules, terms and definitions
    • Introduction to measurement principles, open set-up and CMM
  • Limits of Size:
    • Rule #1
    • Features with & without size
    • Regular & irregular features of size
    • Independency principle
    • Limits & fits
  • How the Geometric System Works:
    • Problems with plus/minus tolerancing
    • Introduction to the datum reference frame
    • Datum precedence
    • Basic dimensions
    • Introduction to Position Tolerancing
    • MMC, LMC, RFS feature modifiers
    • Introduction to Profile Tolerancing
  • Position Tolerancing and Verification:
    • Verifying position
    • More on MMC, LMC, RFS feature modifiers
    • Paper gage
  • Product Plans and Virtual Condition:
    • Product definition drawing, manufacturing process plan, dimensional measurement plan
    • Introduction to boundaries
    • Calculating virtual size
    • Perpendicularity as a refinement of position
  • The Datum Reference Frame:
    • Datums, datum features, datum feature simulators
    • Holes, slots, shafts, tabs, widths as datum features
    • Connection between the theory and physical
    • Datum feature precedence
    • Constraining the degrees of freedom
    • Datum feature simulator requirements
    • Partial datum features
  • Datum Feature Modifiers:
    • MMB, LMB, RMB
    • Calculating boundaries for datum features at MMB
    • Comparison between datum feature modifiers RMB and MMB
    • Simultaneous requirement implied as default
    • Calculating allowable datum feature shift
    • Paper gage calculations
  • Datum Targets and Irregular Surfaces:
    • Contoured datum features
    • Datum targets used on sheet metal
    • Datum targets used on castings
    • Calculations from casting to machining
  • Datum Reference Frames, Advanced Topics
    • Hole patterns as datum features
    • Hole and Slot design
    • Translation modifier
    • Multiple DRFs
    • Customized DRF
  • Form Tolerances
    • Flatness, Straightness, Circularity, Cylindricity
    • Flatness per unit area
  • Orientation Tolerances
    • Perpendicularity, Parallelism, Angularity
    • Orientation as a refinement of Location
    • Perpendicularity of Zero at MMC
  • More Advanced Profile Tolerances:
    • Profile of a surface and line
    • Using profile to control size, form, orientation and location
    • Bilateral and unilateral tolerances
    • Application and verification principles
    • Profile measurement data reporting
    • Free state and restrained condition
    • Composite profile
  • More Advanced Position Tolerances:
    • Position rectangular, conical, spherical tolerance zones
    • Position boundary
    • Continuous feature
    • Composite position tolerancing
    • Comparison of two single segments vs. composite tolerancing
    • Paper gage calculations
  • Coaxial and Runout Tolerances
    • Two datum features creating a single datum axis (A-B)
    • Position to control coaxiality
    • Circular runout and total runout
    • Concentricity and Symmetry
    • Profile to control coaxiality
    • Comparison of position, concentricity, runout, profile
  • Fixed and Floating Fastener Formulas:
    • Calculating position tolerances for clearance holes and tapped holes
    • Screw threads with projected tolerance zones
  • Boundaries:
    • Maximum material boundary, least material boundary, inner boundary, outer boundary
    • Introduction to stack ups
    • Calculations for wall thickness
  • Applications:
    • Corner Bracket
    • Flange Bearing
    • Powder Case
    • Link
  • Impact of Changes from ASME Y14.5M-1994 to ASME Y14.5-2009