Engineering Design Process

• An engineer is a professional who uses scientific principles, mathematics, and creative problem solving to design, build, and improve systems, structures, machines, or processes.
• An engineer's notebook is a detailed journal used to document their work and can be used as a legal document to patent.

Design Brief Components

• Project overview
• Goals
• Target audience
• Budget
• Timeline
• Specific design requirements

Purpose of a Design Brief

• Establishes a clear understanding between the client and design team
• Outlines goals, scope, and constraints

Stages of the Design Process

• Define the problem using statements and constraints
• Generate Concepts
• Brainstorm and develop ideas
• Choose one idea
• Develop and prototype the solution
• Test and evaluate

Precision and Accuracy

• Precision is the consistency/repeatability of measurements.
• Accuracy is how close a measurement is to its true value.

Measurement Conversions

• 1 inch = 2.54 cm
• 1 inch = 25.4 mm
• 1000 meters = 1 kilometer

Fusion 360 Basics

• It is a computer modeling software
• Users create shapes using tools such as create and extrude.
• The user interface is relatively simple with controls for perspective and object view.
• The browser is a tree-like view of design data.
• The timeline is a visual representation of the design's parametric history
• Constraints define relationships between sketch geometry for position and behavior.
• Joining techniques connect components and define relationships, including motion and rigidity.
• Feature tools modify a solid body, such as extruding, revolving, or lofting.

Engineering Drawing Techniques

• Multiview drawings involve alignment, layout, line types, dimensioning, and sections.

Oblique Drawing

• Front view is true size
• Front face is drawn flat and to scale on an angle.

Isometric Drawing

• All three axes are drawn at 120 degree angles from each other.

Perspective Drawing

• Shows objects as they appear to the eye using vanishing points.

Types of Tolerances

• Bilateral
• Unilateral
• Limit

Visual Analysis - Design Elements & Principles

• Design elements are basic building blocks for creating a design.
• Design principles organize elements for a cohesive design.
• Point indicates location.
• Line is the path of point moving.
• Vertical lines provide structure.
• Horizontal lines represent calm and peace.
• Diagonal lines create a sense of movement.
• Curved lines create a sense of freedom.
• Color defines what color it is
• Value allows perception of shapes/dimensions, using lightness/darkness.
• Shape combines lines to create features (square, circle, triangle).
• Form is the 3D structure and appearance
• Space refers to areas between parts or implied depth (open, cramped, busy).
• Texture is how the surface feels (smooth, rough).

Functional Analysis - Black Box

• Technique to study system functions/behaviors.
• Focuses on what the system does instead of how.
• Inputs are what is given to the system.
• Functions are the processes to get ready for output.
• Outputs are what comes out of the system.

Structural Analysis

• Evaluates and understands the behavior of structures under various conditions.