DRFT 112 - Geometric Dimensioning and Tolerancing (GD & T)

3 Credits: (3 lecture)

Course Description
This course provides a solid foundation in dimensioning and tolerancing terms, definitions, concepts, and applications.  Geometric dimensioning and tolerancing principles are built on these basics through print reading exercises, national and international standards and industrial applications. 

Note Spring semester only.

Prerequisite DRFT 114 or DRFT 120 or permission of instructor

Neumann, S., & Neumann, A. (2022). GeoTol Pro pocket guide: Per ASME Y14.5 - 2018. Technical Consultants Inc.

Pareto Learning LLC. GD & T training access code (1st ed.). Simpsonville, SC: Pareto Learning LLC.

Objectives
The student will be able to:

A. Identify dimensioning and tolerancing terms, definitions, and concepts.

B. Apply the basic concepts of geometric dimensioning and tolerancing (GD&T).

C. Interpret industrial GD&T drawing prints.

D. Identify international geometric characteristic symbols as recommended by the American National Standards Institute (ANSI) and published by the American Society of Mechanical Engineers (ASME Y14.5 M 2009).

E. Prepare geometric drawings or sketches using datum features, material conditions, geometric characteristics, and positional tolerancing applications.

F. Specify the necessary tolerances for clearance, interference, and force fits between mating parts.

Content
A. Dimensioning and tolerancing per ASME Y14.5-2009

B. Geometric characteristics of straightness, flatness, circularity, cylindricity, profile, parallelism, perpendicularity, angularity, runout, concentricity, position and combinations of these

C. Datum features, symbols, and axis

D. Material condition symbols for features and datums

E. Form and profile tolerances

F. Orientation and runout tolerances

G. Location tolerances

Student Evaluation
The student will be evaluated on chapter questions, tests, exercises, and drawing assignments.