COVID-19 College Update | March 31, 2020

In accordance with Governor Wolf’s directive, the College’s physical campuses and centers will remain closed through April 30. However, all courses, student support services and College operations are occurring remotely. The College continues to serve students and the communities of Delaware and Chester Counties. Please visit for more information.
Delaware County Community College, Serving Delaware and Chester Counties

MTT 110 - Print Layout and Measurement for Machining

Course Description

This introductory course is designed to provide instruction in the theory and skills necessary to read conventional drawings commonly used in the machining industry. Instruction will be centered around object visualization and feature definition/recognition. Basic through intermediate difficulty multiview third angle (with lesser emphasis on first angle) projection, to include orthographic, isometric, sectional and auxiliary view drawings will be addressed. Piece-part feature terminology, tolerances, limits, fits, conventional dimensioning practices, surface finish and inspection issues will be stressed. Sketching, precision layout tools, measurement tools, and techniques of usage will be covered and utilized to demonstrate comprehension in print/part interpretation. Upon successful completion of this course, students should be able to: Discuss the purpose, the importance, the types, and various uses of engineering drawings, as they relate to the design and manufacture of parts. Communicate the purpose of a title sheet, and relate the value of each of its components to the process of completing a finished product. Analyze the features of an object and develop representative sketch using the principles of orthographic projection. Interpret line work, dimensions, orthographic views, various section types, auxiliary views, and annotations associated with mechanical drawings. Visualize objects, describe geometric relationships, determine feature size and placement, and apply terminology in the interpretation of graphical representations of a tab, bevel, chamfer, neck, fillet, round, slot, keyway, flat, boss, pad, hole/pattern, countersink, counterbore, tapered surface, as well as English and metric thread forms. Describe, discuss and apply the techniques used in standard coordinate dimensioning methods to complete sketches, to layout parts, and perform inspection operations. Identify, and discuss the purpose, and the limitations, of various layout tools; and, of common precision measuring instruments. Demonstrate the use of various layout and precision measurement tools.
Credit Hours: 4
Lecture Hours: 3
Lab Hours: 1

Course Prerequisites: Coreq. MTT 108 or MAT 110 or MAT 128 or MAT 151 or MAT 160