Portland Community College | Portland, Oregon

GD&T I is presents a subset of GD&T that will be of use to beginning machinists.

Students interested in continuing into Metrology or Engineering should also complete GD&T II

TEXT:

A Practical Guide to Geometric Tolerancing per ASME Y14.5-2009 by Scott Neumann and Al Neumann.  ISBN 087263865-0    

Upon completion of the course students should be able to:

• Read and understand basic GDT symbols on a print.

• Explain basic GDT concepts.

• Identify minimum and maximum material conditions.

• Measure and verify position tolerances with applied material conditions.

• Set up and use basic rectangular datum reference frames.

This course is intended to provide a basic introduction aimed at beginning machinists

MCH 115A will be presented by means of audio visual presentations, demonstrations, and research activities. The course activities and design emphasize the development of skills and knowledge outcomes prescribed by established industry standards. The identified outcomes will be achieved by means of individual and team activities.  

The final grade will be based on the average of a mid-term and a final exam and one lab exercise.  The exams present problems related to tolerances similar to those presented in the textbook exercises.  The lab exercise will give the student the opportunity to practice techniques covered in the class.

Text Section 1 - Introduction – symbols and Terms

Text Section 2 - Limits of size

Text Section 3 - How the Geometric System Works

Text Section 4 - Position Verification

Text Section 5 - Product Plans and Virtual Condition

Text Section 6 - The Datum reference Frame

Text Section 10 - Form Tolerances

Text Section 11 - Orientation Tolerances