1. Introduction to Geometric Dimensioning &Tolerancing for ME/EE/Ceng 264

2. Virtual/resultant condition - internal
From ASME 14.5, 1994.

3. Virtual/resultant condition - external
From ASME 14.5, 1994.

4. Maximum Material Condition
From ASME 14.5, 1994.

5. Least Material Condition
From ASME 14.5, 1994.

6. From ASME 14.5, 1994.

7. Fixed Fastener Formula
T=(H-F)/2
T=diametral tolerance
H=MMC hole diameter
F=MMC fastener diameter

8. Floating Fastener Formula
T=H-F
T=diametral tolerance
H=MMC hole diameter
F=MMC fastener diameter

9. Form Tolerances Straightness Flatness Circularity Cylindricity
Straightness of a Line Element - The condition where each line element (or axis or centerplane) is a straight line.
Straightness Control (Feature of Size) - A geometric tolerance that, when applied to a feature of size, limits the amount of straightness error allowed in the axis or centerplane.
Straightness Control (Surface) - A geometric tolerance that, when directed to a surface, limits the amount of straightness error allowed in each surface line element.
Flatness
Circularity
Cylindricity

10. Orientation Tolerances
Perpendicularity
Angularity
Parallelism

11. Runout
Circular
Total

12. Profile
Profile of a line
Profile of a surface

13. Trial Test (page 1)
Explain “bonus tolerance” and give an example to show how to determine bonus tolerance.
Define: Datum, Datum feature, Simulated datum
Resultant condition (give and explain an example using maximum material condition for a pin)
Define each of the following, give a working definition, and give an example of a proper feature control frame for each: Flatness, Cylindricity, Total Runout, Angularity, Perpendicularity

14. Trial test (page 2) What is the significance of the primary datum
to the designer?
to manufacturing?
to inspection?
to assembly?
What is the floating fastener tolerance equation? Explain and make a drawing that proves your equation.
What is the fixed fastener tolerance equation? Explain and make a drawing that proves your equation.

15. Interpret the following prints
Interpret the following prints. Explain any errors or suggest improvements if necessary.