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Welcome to E GR 1207. Engineering Graphics. Engineering Graphics Coordinator. Lee Reynolds Office: ME 224A Email: [email protected] Voice: 742-3538 Ext. 233 Academic Website: http//www.reynolds.etec.ttu.edu or 129.118.86.167. Your Instructor:.

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Presentation Transcript
slide1
Welcome to E GR 1207

EngineeringGraphics

engineering graphics coordinator
Engineering Graphics Coordinator
  • Lee Reynolds
  • Office: ME 224A
  • Email: [email protected]
  • Voice: 742-3538 Ext. 233
  • Academic Website: http//www.reynolds.etec.ttu.edu

or

129.118.86.167

your instructor
Your Instructor:
  • Office Hours:
  • Email Contact:
semester topical overview
Graphic Language & Design

CAD Systems

Sketching Techniques

Lettering

Geometric Constructions

Semester Topical Overview
  • Multiview Projection
  • Sectional Views
  • Auxiliary Views
  • Dimensioning
  • Tolerancing
  • Working Drawings
lecture overview
Lecture Overview
  • Engineering Graphics Language
  • The Design Process
  • Parallel & Perspective Projection
  • Lettering Practices
  • Homework
course title e gr 1306 lesson title design and graphic communication
Course Title: E GR 1306Lesson Title: Design and Graphic Communication

Objectives: After completing this unit, the student should be able to:

  • Define engineering graphics.
  • Explain why standards are important.
  • List the stages of the design process.
  • Name the three phases of concurrent engineering.
  • Explain the difference between parallel and perspective drawing.
  • Apply proper lettering technique.
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Define concurrent engineering.
  • Explain the importance of computer-aided design, engineering, and manufacturing.
  • Explain the importance of prototypes and rapid prototyping
what is graphic communication
What is Graphic Communication?
  • a universal language
    • Standards organizations like ANSI (American National Standards Institute) and ISO (International Standards Organization) publish standards detailing how drawings should be created so they can be interpreted universally.
  • the primary medium for communicating and developing design concepts
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The Engineering

Design Process

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Design Process

Graphical Method

1. Identify the design problem.

1. Hand sketches to communicate and visualize the problem.

2. Problem Solving Concepts & Ideas.

2. Visualizea number of solution concepts by hand sketching.

3. Compromise Solutions

3. CAD models to communicatedetails for evaluation.

  • Models or Prototypes.
  • Production or working drawings

4. CAD model with working drawings to document the solution.

engineering design uses sketching cad
Engineering DesignUses Sketching & CAD
  • Ideas are initially sketched and then more accurate CAD drawings are created
  • A single accurate CAD database can be used to go from ideation to manufacturing and documentation.
  • Finite Element Analysis, 3D rendering, animation, documentation, rapid prototyping software are available for use with CAD.
terminology
Terminology
  • CAD: Computer Aided Design
  • CADD: Computer Aided Design & Drafting
  • CAM: Computer Aided Manufacturing
  • CIM: Computer Integrated Manufacturing
  • CAE: Computer Assisted Engineering
  • Reading Drawings: Interpreting drawings made by others
  • Technical Drawing: Drawings used to express technical ideas
  • Engineering Design Graphics: Technical Drawings
  • representing designs & specifications for physical objects
freehand sketching
Freehand Sketching
  • Freehand sketching is used in engineering graphics to quickly communicate your ideas or designs.
  • A CAD program may not be available, especially during field work
  • Freehand sketching is not sloppy sketching! Your sketches need to be interpreted by others on your design team
lettering basics
Lettering Basics
  • Use HB or other medium grade pencil (2H)
  • Typical lettering height is 1/8”
  • Lettering is Vertical and UPPERCASE
letter shapes
Letter Shapes
  • You can think of each letter as being formed on a 6 x 6 grid.
  • Most letters are 5 units wide by 6 units tall.
  • T O M Q V A X and Y are all 6 units by 6 units.
  • Letter W is 8 units wide and 6 units tall
  • Letter I and numeral 1 are only the width of a single stroke.
spacing lettering
Spacing Lettering
  • Space letters by eye so that the background areas appear equal, not so that the actual distance from one letter to the next is equal.
  • Space letters within words relatively close together. Space words relatively far apart. A good rule of thumb is to space words the width of capital “O” apart.
remember
Remember!!
  • Neat legible lettering is used to add dimensions and notes to sketches.
  • Poor lettering can ruin an otherwise good sketch.
  • Engineering lettering is usually drawn with HB or other relatively soft lead.
  • Use vertical, uppercase single-stroke letters
fundamental axioms
Fundamental Axioms
  • Axiom 1: If a planar surface is parallel to a projection plane, then that planar surface will project true size onto the projection plane.
  • Axiom 2: Points transfer orthogonally into adjacent views.
summary
Summary
  • Engineering drawing can be a universal language to communicate your ideas.
  • The engineering design process uses sketching and CAD to communicate and record ideas.
  • A single CAD database can be used to produce many types of drawings and models used throughout the design process.
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