Geometry of Design

Engineering drawing is the "instrument of communication" upon which the designer must place all information necessary to define a new product. Computer-aided design (CAD) courses often involve teaching solid modelling software, and we view CAD as an engineering communication tool for manufacturing. As the technology of engineering design is in transition from paper drawings to solid models, its education must address the challenge of covering both technologies. Geometry of design integrates drafting technology based on experience with engineering design education. This workbook has evolved from the course “Computer-Aided Graphics and Design” at the University of Florida, and many pages of this textbook can be used for student assignments. In order to help students to familiarize themselves with the manufacturing field experience, most assignments are to be submitted in the form of complete working drawings of the parts and assembly. The first three chapters introduce basic engineering drawing definitions and practices. The following four chapters cover design and descriptive geometry, and subsequent chapters move on to dimensions, assembly line design and surface development.

• Preface
• Chapter 1: Basic Engineering Drawing Definitions and Practices
  • A1.0a Introduction
  • A1.1a Drawing Instruments
  • A1.1b Uppercase Vertical Lettering
  • A1.2a Isometric & Oblique Views
  • A1.2b Pictorial Sketching Exercises
  • A1.2 Isometric Sketching
  • A1.3 Oblique Sketching
  • A1.4a Elements of a Working Drawing
  • A1.4b Views, Conventions… …and Projection Systems
  • A1.4c Guide Block
  • A1.4 Six Orthographic Views of Guide Block
  • C1.1a Drawing Views, Formats, Notes
  • C1.1b Drawing Setup Variables
  • C1.1c Proe Commands and other Drawing Options
• Chapter 2: Views Perspective and Sectional
  • A2.0a Introduction
  • A2.1a 1, 2 and 3–point Perspective
  • A2.1b Internal Perspective
  • A2.1 2-Point Perspective
  • A2.2 Visualization: Orthographic, Isometric
  • C2.1a Orthographic Views,Show and Erase and Other Drawing Options
• Chapter 3: Geometric Construction
  • A3.0a Introduction
  • A3.1a Geometric Constructions
  • A3.1b Other Geometric Constructions
  • A3.1 Clamp Ring: Geometric Cons
  • A3.2a Sections and Symbols
  • A3.2b Sections and Concentions …Examples…
  • A3.2c Sections and Concentions …Examples…
  • A3.2 Sections: Offset, Broken-Out
  • A3.3 Sections: Half, Revolved
  • C3.1a Clamp Ring: Constraints
  • C3.1hist Design Intent History
  • L3.1a CLAMP RING; Constraints
  • Z3.1a CLAMP RING; Constraints
• Chapter 4: 3-View Projection System Drawing: Design Intent
  • A4.0a Introduction
  • A4.1a 3-View Projection System and Rules of Visibility
  • A4.1 Visibility
  • A4.2a AUXILIARY PROJECTION Multi–Sided Projection boxes
  • A4.2 Auxiliary Views
  • A4.3a Multiple Auxiliary Views Example
  • A4.3 Multiple Aux Views
  • C4.1a SHAFT SUPPORT …Extrude feature
  • C4.1b Design Intent
  • C4.1hist Design Intent History
  • L4.1a CHANNEL GUIDE …Extrude feature
  • Z4.1a CHANNEL GUIDE …Extrude feature
• Chapter 5: Descriptive Geometry 1
  • A5.0a Introduction
  • A5.1a Fundamental Constructions of Descriptive Geometry
  • A5.1b Fundamental Constructions of Descriptive Geometry
  • A5.1c Signature of Principal Lines and Planes
  • A5.1 Points and Lines: Classify, Slope & Bearing
  • A5.2 Lines: Parallel, Intersect, Skew, Identify Planes
  • A5.3 TL and PV of a line
  • A5.4a Viewpoints and Direction Vectors
  • A5.4 Viewpoints Direction Vectors
  • A5.5a DIHEDRAL ANGLE example
  • C5.1a SHAFT: Revolve feature
  • C5.1hist Design Intent History
  • L5.1a SHAFT… …Revolve feature
  • Z5.1a SHAFT; Revolve
• Chapter 6: Descriptive Geometry 2
  • A6.0a Introduction
  • A6.1 EV and TS of a Plane
  • A6.2 Angle Between a Line and a Plane
  • A6.3 Bearing, Strike and Dip
  • A6.4a Sheet Metal Vocabulary
  • A6.4b Sheet Metal Example
  • A6.4c Sheet Metal Operations
  • C6.1a SWITCH COVER …Shell and Pattern functions
  • C6.1hist Design Intent History
  • L6.1a SWITCH COVER …Shell and Pattern functions
  • Z6.1a BEARING SUPPORT …Shell and Pattern functions
• Chapter 7: Descriptive Geometry 3
  • A7.0a Introduction
  • A7.1a The CUTTING PLANE
  • A7.1 INTERSECTION of LINE and PLANE
  • J7.1 INTERSECTION of LINE and PLANE
  • X7.1 INTERSECTION of LINE and PLANE
  • A7.2 Intersection of two planes: pierce point
  • C7.1a SUNDIAL…PV, TL, EV, TS, Area… …and DIHEDRAL Angle
  • C7.1hist Design Intent History
  • L7.1a SUNDAL…PV, TL, EV, TS, Area… …and DIHEDRAL Angle
  • Z7.1a SUNDIAL…PV, TL, EV, TS, Area… …and DIHEDRAL Angle
• Chapter 8: Parallelism and Perpendicularity
  • A8.0a Introduction
  • A8.1 Parallelism
  • A8.2 Perpendicular Lines
• Chapter 9: Mutual Perpendicular: Assembly End Clearance
  • A9.0a Introduction
  • A9.1 Mutual Perpendicular
  • A9.2a Mixer Assembly: end Clearance
  • A9.2 Assembly end Clearance
  • C9.1a SPRAY NOZZLE: Sweep, Blend Features
  • C9.2a MUTUAL PERPENDICULAR Axial Clearance
  • C9.1hist Design Intent History
• Chapter 10: Dimensioning and Tolerances: Assemblies
  • A10.0a Introduction
  • A10.1a Dimensioning Terms
  • A10.1b Dimensioning Guidelines
  • A10.1c Dimensioning Guidelines
  • A10.1d Methods of Tolerancing
  • A10.1e Dimensioning… Symmetric…Asym metric
  • A10.1 Dimensioning
  • A10.2a Design of Fits Hole Basis and Shaft Basis
  • A10.2 Design of Fits
  • A10.3a Clearances, (ANSI) Tolerances and Fits
  • A10.3b Clearances, (Metric) Tolerances and Fits
  • A10.3 ANSI fits, ISO fits
  • C10.1a Mixer Assembly… C 101XA01. asm Mixer Assembly Drawing…C101X01.drw
  • C10.1b …Bill of Materials…Balloons … …Assembly Sections… …Exploded Views…
  • C10.1 hist Design Intent History
• Chapter 11: Assembly Line Design
  • A11.0a Introduction
  • A11.1a Thread Data Allowances and Tolerances
  • A11.1 Screw Assembly Design Problem
  • A11.2a Working Drawingsand Specifications
  • A11.2b Working Drawings and Specifications
  • A11 2c Assembly Line for Low Volume Production
  • A11.2d Assembly Line for Low Volume Production
  • A11.2e Bench Assembly Line
  • A11.2f Assembly Line Operations
  • C11.1a Assembly Line Layout
• Chapter 12: Threads and Fasteners
  • A12.0a Introduction
  • A12.1a ANSI Thread Notes
  • A12.1b Screw Thread Representation
  • A12.1c MetricThread Notes
  • A12.1 Screw thread terminology
  • A12.2 Thread notes
  • A12.3a Rivets and other Standard Hardware
  • A12.4a Geometric Tolerancing
  • A12.4 GDT Feature Control Frames
  • C12.1a CONICAL COMPRESSION SPRING
  • C12.1 hist Title: Conical Spring; C 121 X01 hist.pdf Part No.: C 121 X0 1.prt
• Chapter 13: Surface Development
  • A13.0a Introduction
  • A13.1a Finding TL by Revolution
  • A13.1 Surface Development
  • C13.1a ARCH… …Swept Blend Feature; Equation Editor
  • C13.1hist Design Intent History
  • L13.1a ARCH Swept Blend Feature; Equation Editor
  • C13.2a VORTEX ASSEMBLY …Surface Modeling …Convert Surfaces to Solids
  • C13.2hist Design Intent History
  • L13.2a VORTEX ASSEMBLY…Surface Modeling …convert Surfaces to Solids