ENME 414 Computer Aided Design
Homework Assignment 1 - Getting Started
Due 9:00 am, Monday, February 10, 1997

Statement: As a course for senior students, the instructor assumes that most of you are familiar with engineering graphics. The first homework assignment is prepared for establishing the communication with the students in class.

Problem 1: Two objects are given in the format of three-dimensional drawings. The students are asked to make two-dimensional drawings. As a minimum requirements, the top, front, and right-sided views are required. You are not asked to use computer software tools. Using a pencil and a ruler would be sufficient to complete this assignment. It is recommended that you pay attention to:

  1. three types of lines: visible lines for the boundaries of projection, hidden lines for features that cannot be seen, and centerlines for characterizing symmetry. Thickness of a line should be used to distinguish the type of line from the other types of line.

  2. dimensions, tolerances and notes: engineering drawings serve as the language of communication in engineering for information delivery and exchange. For an accurate representation, dimensions, tolerances and notes are needed.





Problem 2: Sketching an isometric drawing of a given object based on the front and top views. This is a reversing process to the construction of 2D views from a 3D drawing. Make the dimensions on the isometric drawing.



Email: zhang@eng.umd.edu