2013-2014 ME2A03 Sklad only

© 2013 by M.P. Sklad

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Mechanical Engineering 2A03 – Design Communication (2013)

Outline - Mechanical Design Graphical Communication (MDGC) Instructor:

Component Instructor MDGC Dr. M.P. Sklad,

Dept. of Mech. Eng. Room JHE 209, Phone 24501

Teaching assistants:

CAD lab JHE/219A: Mondays 13:30 - 14:30, Tuesdays 9:30 - 14:30.

Combined schedule of lectures and lab/tutorials1 commencing on Monday Sept. 9th.

Lecture Mondays

14:30-15:20

Whole class

tutorials Tuesdays

14:30-15:20

Lectures Wednesdays 14:30-15:20

Section tutorial

L01 Tuesdays

13:30-14:20

Section tutorial

L02 Mondays

13:30-14:20

Section tutorial

L03 Mondays

9:30-10:20

Section tutorial

L04 Mondays

11:30- 12:20

Component and dates

MDGC Sept. 9th –Nov. 18th

MDGC Sept. 10th

TC Sept. 11th

Sept. 17th – Nov. 19th




AVC

Sept. 17 AVC

Sept. 18-24

MDGC Sept. 24th

- Nov. 19th

TC Oct.2 - end of the term

AVC Nov. 21th -end of the

term

AVC Nov. 26th

-end of the term

AVC Nov. 22st -end of the

term

AVC Nov.21rd

-end of the term

AVC Nov. 21th

-end of the term

AVC Nov. 21rd

-end of the term

Rooms MDCL/1309 HH/109 MDCL/1309 ETB/237 JHE/219 ETB/230 ETB/228

MDGC instructor

Dr. M. Sklad

TC instructor

Dr. J. McDermid

AVC instructor

B. Palmer

MDGC test: Nov. 19th , Room MMC T28 001, 2:30-3:30pm

1 . Note that the AVC component scheduled during the last two weeks of the term and will not be repeated.

Last name, first name Email Lab section Afshari, Hamedhossein [email protected] L01

Hu, Xiang [email protected] L04 Guo, Teng [email protected] L03

Shaarawy, Maikel Magdy [email protected] L02 Ismail, Mahmoud Ahmed Ali [email protected] L01

Yip, Alex [email protected] CAD lab JHE/219A


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Objectives

- to develop skills in creating and interpreting graphical representations of mechanical devices according to the formal rules set by the International Organization for Standardization, the ISO2,

- to develop an understanding of the relationships between the ISO standards based graphical representations of mechanical devices and the main constraints of the mechanical design process: strength, manufacturing, material and cost,

- to develop skills in the graphical communication of mechanical design using both free hand drawing and computer aided design (CAD) software.

Topics

1. Introduction Design definition, Product life cycle, Mechanical design

2. Brief coverage of multidisciplinary aspects of mechanical design Strength Manufacturing Materials Cost

3. Mechanical design graphics based on ISO standards

Preferred numbers Basic elements of mechanical design drawing Dimensioning and geometrical tolerancing Assembly drawings Graphical presentation of typical machine elements

4. Reverse engineering graphical design project

2 ANSI standards are discussed in ME 2C04


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Text: Paul Green, “The Geometrical Tolerancing Desk Reference – Creating and Interpreting ISO Standard Technical Drawings”, Elsevier 2005, (198 pages, available at Titles bookstore, ~ $48). Other suggested readings: Knut O. Kverneland, “Metric Standards for Worldwide Manufacturing”, ASME 2007 (806 pages, available in the reference section of Thode Library). ISO Standard Handbook – Technical Drawings Learning Autodesk Inventor 2010 – Official Training Guide by Autodesk, 2010 Wiley, (984 pages), Randy H. Shih, “Parametric modelling with Autodesk Inventor 2011”, SDC Publications 2011. Class organization: The MDGC course material will be presented during the lectures on Mondays in MDCL/1309 and during the whole class tutorials on Tuesdays in HH/109, commencing on Sept. 9th. The sectional tutorials/consultations are scheduled at different times and rooms as listed on the combined lectures and lab/tutorials schedule above. The CAD lab in JHE/219A with the Autodesk Inventor CAD software is reserved for students enrolled in ME 2A03, on Mondays between 13:30-14:20 and on Tuesdays 9:30 - 14:30, if needed3. A free copy of Autodesk Inventor is available for downloading from the Autodesk website at http://students.autodesk.com/?nd=download_center. Students who have their own CAD software other than Autodesk Inventor may use it in this course as long as the software provides the functionality needed to complete the required course work. The student’s work in the MDGC module of the course will be evaluated based on four components:

1. Assignments 2. Design project 3. Test 4. Design portfolio

The assignments will deal directly with the key elements of the material presented during classes. The assignments will be announced during the whole class tutorials on Tuesdays. Most of the assignments will take the form of creating simple mechanical design drawings, either by

3 The computers in the CAD lab in JHE/219A provide the CAD software only. The students are responsible for providing their own external USB storage – this means separate self-contained project file storage and backup media.


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hand or using CAD. Participation in the classes will make the completion of the assignments quick and simple. Assignments 1-5 are to be completed over a four week cycle:

Week 1 - the assignment is given, Week 2 - assignments are submitted, during the tutorial, to the section TA for marking, Week 3 - assignments with the pending marks requiring corrections are returned by the TA during the tutorial, for correcting, Week 4 - corrected assignments are collected during the tutorial by the TA for recording the permanent mark.

The corrected assignment must consist of the original work with marked errors and a separate sheet with all errors indicated by the TA, corrected. Missing or Incomplete corrections will not change the status of the mark. A complete correction of the errors will reduce the penalty for errors by 50%. The re-submitted revised work will be kept as the course records and will not be returned to the students. However, the students should retain copies of the original or revised work for their own records and as a part of their design portfolio. The mark for the assignment will be zero if the correction of the errors has not been submitted by the deadline during sectional tutorial session. All sheets of MDGC assignments must be stapled, and the drawings should have formal title blocks, frames and, in addition to the student name and ID, a clear indication of the tutorial section, i.e. L01 ... L04. Gantt chart for MDGC assignments

Week of Assignments

&

Project

Sept.

8th

Sept.

15th

Sept.

22nd

Sept.

29th

Oct.

6th

Oct.

20th

Oct.

27th

Nov.

3rd

Nov

10th

Nov

17th

A0 - 2% A0 Due

A1 - 2% Week 1

Week 2

Week 3

Week 4

A2 - 2% Week 1

Week 2

Week 3

Week 4

A3 - 2% Week 1

Week 2

Week 3

Week 4

A4- 2% Week 1

Week 2

Week 3

Week 4

A5- 2% Week 1

Week 2

Week 3

Week 4

MDGC ends


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The design project is to be completed by each student individually using CAD over several weeks. The core of the design project is the formal, ISO standard compliant, graphical design documentation for a “reversely engineered” simple mechanical device. The design documentation should include the assembly drawing, bill of materials, (BOM), and the detailed drawings of the components, with dimensions, manufacturing tolerances and the specification of materials. Additional information regarding the design project and assignment of student ID based individual dimensional parameters of the device will be presented during lectures.

In addition to the formal ISO standard compliant graphical design documentation the students will be required to create and submit with the design report an advertisement page depicting and emphasizing the attractive features of their design solution aimed at the potential customers.

All design project document and the original CAD project files must be submitted on the due date in a sealed envelope labelled with the student name, course, tutorial section and the name of the TA supervising the tutorial section. The package must contain printed copies of the required drawings and a labelled CD or USB memory stick with the original CAD project files and source files for all printed text and image pages. Projects submitted without the electronic copies of the sources will not be accepted for marking. The projects documents will be retained by the MDGC instructor Dr. M.P. Sklad for a period of six months.

The design portfolio is a folder with the MDGC course work, notes, copies of the CAD assignments, and a copy of the design project should to be maintained by each student enrolled in the course. The students are advised to keep the design portfolio folder as a reference and for inclusion of further design documents generated during subsequent design courses, ME 2C03, ME 3E05 and ME 4M06. Test: A one-hour final test of the MDGC component of the course will be held at the end of MDGC session. The focus of the test will be ISO standard compliant mechanical design graphical communication (MDGC). The test will involve hand sketching. Missed work and/or missed deadlines: All requests for an alternative course of action must be submitted using the McMaster Student Absence Form (MSAF). Use of the MSAF form as an accommodation for a missed assignment will automatically result in the marks allocated for that assignment being shifted to the Final Test. The work on the CAD design project, which is extending over several weeks, cannot be substituted with assignments and it cannot be substituted with a test. The limits set by the MSAF regulations regarding missed work apply to the course as a whole.


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Grading:

The contribution of the MDGC course work to the total mark for the course will be calculated according to the following scheme:

Assignments 12% Test 4 10% Project 38% (3% progress report, 35% submitted project) Portfolio/progress up to 3% bonus marks for MDGC component awarded at the

discretion of the TAs. _______________ Total max. 60% (+0 to 3% bonus)

4 A passing mark on the test (minimum 50% of the test score) is required for passing the MDGC component of the course

Documents

2013-2014 ME2A03 Sklad only