Engineering Education Commons^™

Clarifications Of A Datum Axis Or Centerplane Specifying In Maximum Material Condition Of Geometric Dimensioning And Tolerancing, Cheng Y. Lin, Jennifer G. Michaeli, Mileta Tomovic

Engineering Technology Faculty Publications

Engineering and Engineering Technology students and professionals learning the processes and standards in computer-aided design (CAD) and computer-aided manufacturing (CAM) should learn and understand the methodology of geometric dimensioning and tolerancing (GD&T) to describe the intent and requirements for part and assembly geometries. Correct application of GD&T ensures that the part and assembly geometry defined on the drawing will have the desired form and fit (within limits) and function as intended. One learning difficulty in understanding GD&T is the concept of defining a datum axis or center plane using Maximum Material Condition (MMC). To overcome this difficulty, a new approach …