ENGR& 114 Engineering Graphics • 4 Cr.
Introduces methods of communicating technical information in engineering design and research. Topics include freehand sketching, lettering, scales, drawing layout, orthographic projection, pictorials, auxiliary views, section views, dimensioning, descriptive geometry, thread and fastener specifications, and tolerances. Includes an introduction to computer-aided drafting. Prerequisite: MATH 098 or 099.
After completing this class, students should be able to:MECHANICAL DRAFTING: Write neat and well formed vertical, uppercase lettering. Use drafting instruments: triangles, compass, protractor, and French curve. Draw visible, hidden, centerline, and cutting plane line types with proper darkness and width. Use triangles to construct parallel and perpendicular lines. Use an Architect’s, Engineer’s, or Metric scale to measure or layout a distance. Select an appropriate scale to use given an available drawing area and an object size. Geometrically construct bisections, polygons and an ellipse. Construct tangencies between lines and circles. VISUALIZATION: Identify and/or rectify missing lines in a set of orthographic views. Draw a set of orthographic views given an isometric pictorial. Draw/sketch a pictorial from a given a set of orthographic views. Determine an auxiliary view given a set of orthographic views. Properly draw a section view for a given cutting plane through an object. DETAILING: Determine the best view in which to place a dimension of an object feature. Observe and omit possible redundant dimensioning. List the parts of a thread: major diameter, lead, pitch, thread angle, crest, and root Specify the proper thread note using english and metric standards. List the tolerance terms: fit, clearance, interference, transition, force, basic size. Specify the proper tolerance limits using english and metric standards. COMPUTER-AIDED DESIGN: Create accurate solid part models using: extrude, revolve, hole, fillet and chamfer operations. Implement swept and lofted features. Produce working drawings with dimensions and with various view types. Create properly constrained assemblies and analyze possible assembly part interferences.