Syllabus MEEM4403 Computer-Aided Design Methods (Unigraphics NX3) Fall Semester 2005

Instructor Dr. B. Bettig bettig@mtu.edu 487-1897 924 MEEM TW 3-4 pm T.A. Mark Klein mklein@mtu.edu 715-573-8113 M 2-3 pm; W 4-5 pm.

Course Reference Materials

Web page: http://www.me.mtu.edu/~cadm4403/ – contains lecture notes. Textbooks:

• Lee, K., Principles of CAD/CAM/CAE Systems, Addison Wesley Longman, Reading, MA, 1999. • Samuel, S., Pragada, A., Baksi, G., Practical Unigraphics NX3 Modeling, Drafting and Assemblies, Design

Visionaries, San Jose, CA, 2005. • These texts are recommended but not required.

Tutorials: Online Tutorials are available under the Help menu when running UG. Select “Help” � “Training…”. Parts used in training can be accessed from “C:\\Program Files\UGS\NX 3.0\ugcast\parts” on PC’s and from “/usr/arch/apps/ugs030/ugcast/parts” on Sun workstations. See the Teaching Assistant or course Instructor immediately if you have trouble locating the tutorials or parts. Online Help: Online help is available under the Help menu when running UG. Select “Help” � “Documentation”. You can also press F1 when you are in the middle of something and you want to get help on that topic. Course Topics

Tentative list of Course Topics

Reading & Doing Week

Lecture Topics

In the Lab

Lee Text

CAST

1 (8/28)

Introduction to CAD & Unigraphics Sketching Curves

Tut. 1

Ch. 1, 2

Unigraphics NX Essentials Sketcher

2 (9/4) Constraining Sketches

Lab 1

3 (9/11) Solid Modeling

Tut.2

Ch. 5

Feature Modeling

4 (9/18) Solid Modeling Lab 2

Ch. 5

Feature Modeling

5 (9/25) Parametric Modeling

Tut. 3

Expressions

6 (10/2) Bottom-up assembly modeling Product Data Management

Lab 3

3.7 Ch. 14

Assembly Modeling

7 (10/9)

Mid-term Exam (10/12) Free Form Modeling - Curves

Tut. 4

6.1-6.4

8 (10/16) Free Form Modeling - Surfaces

Lab 4

7.1-7.5

Free Form Modeling

9 (10/23) Free Form Modeling - Operations Tut. 5

Free Form Modeling

10 (10/30) Top-Down Assembly Design Lab 5

Top-Down Assemblies

11 (11/6) Optimization

Lab Exam Tut. 6

Ch. 9

12 (11/13) Mechanism Design and Simulation

Lab 6

Motion Documentation

Thanksgiving Break

13 (11/27) Drafting GD&T

Tut. 7

Ch. 4

Drafting Fundamentals

14 (12/4)

Process Planning CAM

Presentations (12/7)

Ch. 10 11.1-11.6

Manufacturing Essentials Planar and Cavity Milling

Course Grading

Course Deliverables

Grading Scale

6 Lab assignments (7.5 each)

45

A

90.0-100%

C

70.0-74.9%

7 Tutorials

5

AB

85.0-89.9%

CD

65.0-69.9%

2 Written Exams (15 & 20)

35

B

80.0-84.9%

D

60.0-64.9%

1 Modeling Exam

15

BC

75.0-79.9%

F

< 60.0%

Course Total

100

Course Policies Academic Integrity Academic dishonesty of any sort (plagiarism, cheating, fabrication or facilitation) is not tolerated, and if detected all parties involved will immediately be reported to the Dean of Students office according to MTU Policy on Academic Integrity. Plagiarism, cheating or facilitating these actions on laboratory work, quizzes, tests and examinations is not permitted under any circumstance. Penalties for violation of the MTU Academic Integrity Policy include warning, course failure, suspension and expulsion. Collaboration with other people on the laboratory assignments for the purpose of understanding the course material is acceptable. Collaboration with other people on homework projects is required. Verbal collaboration is acceptable when working on assignments, however, the only people allowed to manipulate the computer input device (keyboard, mouse, etc.) are the students submitting the assignment, a laboratory teaching assistant, a CAEL partner executing their responsibilities, or a faculty member. Electronic plagiarism will be actively policed by all course instructors. Attendance You are expected to attend all scheduled lectures and required to attend all scheduled laboratory sessions because learning is motivated through active discussion, demonstration and practice of the topics being studied. You are responsible for all completed work, schedule adjustments and assigned work addressed during class. Please inform your instructor if you are unable to attend any scheduled class session, and obtain notes from any missed lecture(s). It is your responsibility to make arrangements for any planned or unplanned absences (i.e. interviews, illnesses, personal emergencies, etc.).

Preparation In order for you to get the most out of this course you are expected to come to class prepared for discussion of the scheduled topic(s). This includes pre-reading the textbook, working the assigned tutorials, practicing modeling techniques on your own, and contributing questions and previous experiences to the class dialog. Every student will be asked on a random basis to demonstrate key points from the tutorials in class. Deadlines & Due Dates Late work will be charged a 15% penalty for each day late - weekend days do count. Circumstances beyond your control (i.e. illness, computer system failure, weather, acts of nature, etc.) will be addressed as required. CAD model grading policy As with written reports and drawings, CAD models must be neat and understandable. Your design intent must be clear so that others can use and modify your designs. Specifically, your work must be: - neat: marks may be lost if it is too difficult or time-consuming to decipher the design intent, - consistent: the graders will assume that all your work is of the same quality as work inspected in a random spot check, - complete: the model must be sufficient to properly manufacture, assemble and/or demonstrate the design. - good modeling practice: while a model may look good on the screen, it must also be technically sound. It must:

(i) be fully constrained so that it can be easily modified without error, (ii) use a minimal number of parameters and dimensions, (iii) use a minimal number of operations (features), (iv) have all important dimensions, parameters and features given meaningful names, (v) build on reference geometry as much as is reasonable, (vi) not describe more than one part in the same part file (except for purchased components).

Michigan Technological University complies with all federal and state laws and regulations regarding discrimination, including the Americans with Disabilities Act of 1990 (ADA). If you have a disability and need a reasonable accommodation for equal access to education or services at MTU, please call Dr. Gloria Melton, Associate Dean of Students, at 487-2212. For other concerns about discrimination, you may contact your advisor, department head/chair, or the Affirmative Action Office.