Datum Feature Control
Primary Datum Surface Control - 1994, 2009 & 2018
Tie your datum features together - 1994
Tie your datum features together - 2009 & 2018
Datum Feature Selection
Two Holes
Datum Feature Types
Primary
Hole and Slot Simulation - Video!
Secondary
Watch the Placement of Datum Identification Symbols... 1994 & 2018
Watch the Placement of Datum Identification Symbols... 2009
Datum Features
Datum Reference Frame
Does a Datum Reference Frame Need to be Fully Constrained?
Displacement (Shift)
Datum features can give you a shift-not a bonus - 1994
Datum features can give you a shift-not a bonus - 2009, 2018
Exact Constraint
Rocking Datum Feature - Video!
Orienting Datum Planes
Sufficient Size
Datums must be of sufficient size!
Symbol Placement
Watch placement of datum triangles in the latest Standard - 1994, 2009, 2018
Basic and +/- Don’t Mix - Video!
+/- vs. Profile Example - Video!
Dimensioning vs. Tolerancing - Video!
Multiple In-Line Features - Video!
Basic
Angles
When it Comes to Dimensions: “Give the Customer What they Need”!
Placement
Basic Dimension Placement Doesn’t Matter - Video!
Give Production the Dimensions They Need - 1994, 2009, 2018
Direct Tolerancing
Locating Dimensions to Centers
Irregular Features of Size - Video!
Envelopes
Determining Size and Center - Video!
Irregular Features of Size
Extension of Principle - Video!
Boundary Control
Calculating Bonus - 2009 and 2018
Think Boundary, not Bonus - 1994, 2009, 2018
Composite
Feature to Feature Control - Video!
Single Segment
Composite Vs Single Segment - 1994, 2009, 2018
Cpk Calculation
The most important control in GD&T is location, location, location - 1994, 2009, 2018
Protect your boundaries with Profile - 1994, 2009, 2018
Use Profile to Control Size and Form - Video!
Applications
As a General Tolerance
Simplify Your GD&T - 1994 & 2009
Profile can Control Location of Irregular Features - Video!
Composite
Position can Control Location of Irregular Features - Video!
Coplanarity
For Coplanarity use Profile - 1994
For Coplanarity Use Profile - 2009 & 2018
Inspection
What Are The Rules? 1994, 2009 & 2018
Rule #1
Size Controlling Form - 1994, 2009, 2018
Simultaneous Requirements
When in Doubt - Use Runout - 1994 and 2009
Don’t give runout more credit than it deserves - 1994, 2009, 2018