introductions and sketching

Lect 1 P. 1

Engineering H191 - Drafting / CAD

Autumn Quarter Gateway Engineering Education Coalition

Introductions and Sketching

Lecture 1

Lect 1 P. 2



Engineering H191

• Faculty– If your course is a multiple section course then

you need to list all faculty, their departments, and the times that they are teaching the course

Lect 1 P. 3



Engineering H191

Faculty Member’s Name

• Office – Building and room number• Phone – XXX-XXXX• Home Phone – XXX-XXXX• E-mail – Provide e-mail address• Office Hours – As scheduled &/or by appointment

Lect 1 P. 4



Topics For Today

• Introduction to the course, instructional staff, facilities, and each other

• Introduction to Course and Sequence Content and Course Organization

• Engineering Course Sequence• Review the Course Syllabus• Overview of Facilities• Introduction to Graphic Communication• Isometric Pictorials

Lect 1 P. 5



ENG H19X Course Sequence

• Engineering Fundamentals and Laboratory I, II, and III

• ENG H191 < This course• ENG H192• ENG H193

Lect 1 P. 6



ENG H191 Course Content

• Engineering Graphics– Sketching– CAD – w/ AutoDESK’s Inventor and AutoCAD

2002 • Hands-on Laboratory• Design Project

Lect 1 P. 7




• C / C++• MATLAB• Design Project• Hands-on Laboratory

Lect 1 P. 8




• Design & Build a Small Autonomous Robot• Design and Build an Instrumentation System for

the Ohio State Infrastructure• Option 3 – to be determined

Lect 1 P. 9



Developing Engineering Skills

• Read Engineering Drawings• Sketch Ideas using Engr. Drawing Stds• Draw/Model using CADD• Program in C/C++• Program in MATLAB

Lect 1 P. 10



Developing Engineering Skills

• Develop a visual and verbal engineering vocabulary through the Hands-on Labs

• Plan, Manage an Engineering Project• Design, Build, & Test a Prototype• Teamwork• Communications – Reports, Presentation

Lect 1 P. 11



Self Introductions

1) Introduce yourself to the person beside you. Tell name, hometown, and favorite book or movie of the past year.

2) Introduce the person beside you to the persons across the table, including hometown and favorites.

Lect 1 P. 12



Course Syllabus

• Course Meeting Times and Places

– Lecture/Discussion/CAD• Mondays, Tuesdays, and Thursdays

– Hands-on Lab• Most (but not all) Wednesdays

• Instructional Team Roles

Lect 1 P. 13



Course Objectives

THIS COURSE IS DESIGNED TO HELP YOU:

• Understand engineering• Appreciate various disciplines• Experience the design process• Learn and practice fundamental skills• Learn Graphics and Computer Applications• Develop study, teamwork, and communication

skills

Lect 1 P. 14



Course Objectives

THIS COURSE WILL ENABLE YOU TO:

• Prepare engineering drawings• Read engineering drawings• Solve space geometry problems• Improve your 3-D spatial visualization• Acquire basic skills in technical graphic

communications• Experience some “hands-on” activities

Lect 1 P. 15



Course Organization

• Course divided into two different segments

– Lecture/Discussion on Graphics and CAD

– Laboratory with "Hands-on" Activities

Lect 1 P. 16



Lecture/Discussion

• Class begins with a presentation on the topics of the day

• Students practice skills in class• Assignment for same or next day given• Assignment collected at beginning of class• Previous day’s assignment graded, returned • Note policies on late homework and collaboration

Lect 1 P. 17



Graphics Communications

• COMMUNICATION SYSTEMS– Spoken– Written– Mathematics– Graphics

• TECHNICAL GRAPHICS– Communicating– Solving Problems– Visualizing Objects– Conducting Analyses

Lect 1 P. 18



What You Will Learn

• Visualization – think 3D thoughts 24 hours/day• Graphics Theory• Standards• Conventions• Tools• Applications

Lect 1 P. 19



Laboratory Exercises (8 during this quarter)

• Goals will be:– Providing exposure to the wide range of

engineering disciplines– Developing the skills to work effectively as a

team member– Learning how to document an engineering lab

experiment and prepare a formal written report – Building knowledge and skills needed for H193

and robot project in spring quarter

Lect 1 P. 20



Laboratory (8 during this quarter)

• Activities will include:– Understand gears and sprockets– Work with AC and DC electricity– Traffic analysis & spot speed study– Investigate springs and levers and beams– Make a variety of size, temperature, voltage,

current, and flow measurements– Next quarter – ride a bike, fire a rocket motor,

and program a real world device

Lect 1 P. 21



Electronic Journals

• Weekly electronic "journal" entry• You will receive a topic or questions during the

week via email• You must respond via email by 11:59pm Sunday

to receive credit• Your return address in your email message must

be your OSU email addresse.g., [email protected]

Lect 1 P. 22



Electronic Journals

• FEH staff will only receive the text of your response

• Response will be anonymous, unless you put your name into body of message

• Excellent opportunity to impact quality and direction of FEH program in "real-time"

• Constructive comments always welcome

Lect 1 P. 23



Grading

• Daily Assignments 27.0%• Lab Reports (7) 17.5%• Midterm Exams (2) 24.0%• Quizzes (5) 5.0%• Design Project 5.5%• Electronic Journals (10) 3.0%• Lab Practical Exam 4.0%• Final Exam 14.0%

Lect 1 P. 24



Course Materials

• Books at OSU Bookstore:– "H191 Bundle"

• "Technical Graphics", by Boyer, et. al.• "Tools and Tactics of Design", by Dominick, et. al.• "A Guide to Writing as an Engineer", by Beer, et. al.

– AutoCAD 2002 Tutorials and Inventor Tutorial – One book

– "The New Way Things Work" by Macauley (access only)• Cop-Ez in Tuttle at Park Place:

– "Autumn 200X Engineering H191 Course Packet" by Meyers

Lect 1 P. 25



Course Materials

• Materials at OSU Bookstore:– Scale: 6” combination decimal inches and

millimeters [Staedtler-Mars 561-79-102]– Lead holder: 0.7mm [Staedtler-Mars Micro 775

– 0.7mm]– Eraser: stick type [Staedtler Radett 52820]– Floppy disks 3.5” High Density - 2 clean disks

required (or, alternatively, a 100 MB Zip disk)– Pad of green engineering problem paper– 3 ring notebook

Lect 1 P. 26



Daily Syllabus

• See listing of Dates, Topics for Basics or Lab, Assignments and Due Dates, and especially, Dates of Quizzes and Exams

• (Do not lose this syllabus!)

Attendance and participation are important!Engineering is not a spectator sport.

Lect 1 P. 27



Grade Summary

• We Recommend you keep a running tab of grades on your assignments.

• Use the column in the syllabus!

• Grades will also be kept on Web CT

Lect 1 P. 28



Policy for Students with Disabilities

• Students with disabilities are encouraged to contact their instructor as soon as possible.

• Student will be encouraged to make use of the resources of the Office of Disability Services (190 Pomerene Hall, 292-3307)

Lect 1 P. 29



Academic Misconduct Policy

• The Code of Student Conduct defines Academic misconduct to include – violation of course rules, – providing or receiving information during

quizzes or exams, – submitting plagiarized work, – falsification, fabrication, or dishonest in

reporting research results.

Lect 1 P. 30



Academic Misconduct Policy

• All cases of suspected misconduct will be reported to the University Committee on Misconduct. Any students observing misconduct should report such to the course instructor.

Lect 1 P. 31



Facilities Overview

• Classroom (Hitchcock 206 / 346)– Microsoft Office (Word, Excel, Power Point)– AutoCAD 2002– Autodesk Inventor – MATLAB

• Laboratory (Hitchcock 208)• Computer Lab (Hitchcock 324)

– Software same as classroom

Lect 1 P. 32



Assignment for Tomorrow

• Purchase – Books and supplies at Bookstore– Course Problem Packet at Cop-Ez

• Read Boyer Technical Graphics (BTG) Chapter 1.53-1.57, 3.1-3.10, 3.14-3.20

• Bring Problem Packet and BTG book to next class

• Tomorrow – Sit where you would like to sit for the quarter, we will make seat assignments.

Lect 1 P. 33



Graphic Communication and Three-View Sketches

Goals:• Understand graphics as a communication tool• Creating a three-view sketch• Lettering

Lect 1 P. 34



Attempt to describe the part below in words only.

• Q: Would this be an effective way to tell someone how to build this part?

Lect 1 P. 35



Chapter 1 Topics to Note

• Lettering Guidelines• Lettering Styles

– Shape of Letters– Order of drawing lines

• Character Uniformity• Spacing

Lect 1 P. 36



Chapter 3 – Technical Sketching

• Types of Technical Drawings

• Advice on Freehand Sketching

• Introduction to Projections

Lect 1 P. 37



3 Basic Types of Technical Drawings

• Freehand sketches

• Instrument drawings

• Computer drawings and models

Lect 1 P. 38



Tips on Freehand Sketching

• Orient paper to be comfortable• Mark end points of the lines to be sketched• Relax and draw in direction comfortable to you• Draw long lines as a series of short lines• Use grid paper when available

Lect 1 P. 39



Introduction to Projections:

• Two Basic Categories– Multi-view Pictorial

Our challenge is to present 3-D objects with 2-D media

Lect 1 P. 40



Introduction to Projections

Multi-view Axonometric

Oblique Perspective

Pictorials

Four Basic Types

Lect 1 P. 41



Multi-view Projections

• Reference material – BTG Chap 4• Advantage – Represent features of an object

accurately• Example Problem

Lect 1 P. 42



Multi-view DrawingA collection of flat 2-D drawings that

work together to give an accurate overall object.

Lect 1 P. 43



Defining the Six Principal Views

Lect 1 P. 44



Which Views to Present?

• General Guidelines• Pick for the Front View the view that is most

descriptive of object• Most common selection is to use: Front, Right

Side, and Top

Lect 1 P. 45



“Hands- On” Time

Lect 1 P. 46



Conventional Three-View

Height

Depth

Width

Front View

Top View

Right SideView

Lect 1 P. 47



Steps in Creating the Three-View Sketch

Lect 1 P. 48




Step 1 - Lightly Block Three Views

Use very light lines

for drawing in

the constructio

n lines

Lect 1 P. 49




Step 2 - Lightly Block Major Features

Lect 1 P. 50




Step 3 - Add Features, Use Miter Line

Lect 1 P. 51




Step 4 - Add Final Lines

Lect 1 P. 52




Completed Sketch

Lect 1 P. 53



LetteringStraight Line Lettering

Curved Line Lettering

Curved Line Letters and Numerals

Lect 1 P. 54



Assignment

• Drawings 1 and 2 – Dwg 1 (blocks) – Due before leaving today– Dwg 2 (lettering) – Due next lecture

• Reading for Next Lecture– BTG – Sections 4.1-4.11

introductions and sketching

Documents