Module Name

Description

Introduction to CAD and 2D Design

Core Concepts:

History and evolution of CAD/CAM

Benefits of using CAD/CAM in manufacturing

CAD/CAM system components (hardware & software)

Engineering drawings and GD&T (Geometric Dimensioning & Tolerancing)

Introduction to 2D drawing principles (lines, arcs, circles, dimensions)

Common file formats (DWG, DXF, STEP, IGES)

Software Training:

Introduction to a 2D CAD software (e.g., AutoCAD LT, DraftSight)

Creating simple 2D drawings (sketches, orthographic views)

Applying dimensions and tolerances

Basic drafting standards (ANSI, ISO)

Case Study:

 "The Missing Part": Students are given a simple mechanical assembly (e.g., a clamp) and asked to create 2D drawings of individual components based on visual inspection or provided dimensions. This emphasizes the importance of accurate documentation.

3D Modeling Fundamentals

Core Concepts:

3D modeling principles (solid, surface, wireframe)

Basic 3D modeling techniques (extrusions, revolutions, lofting)

Boolean operations (union, subtraction, intersection)

Parametric modeling and constraints

Assemblies and configurations

Software Training:

Introduction to a 3D CAD software (e.g., SolidWorks, Fusion 360)

Creating simple 3D models (cubes, cylinders, cones)

Applying basic constraints (dimensions, mates)

Creating simple assemblies with moving parts

Case Study:

"The Desk Organizer": Students are tasked with designing a simple desk organizer (pen holder) using 3D modeling software. This encourages creative problem-solving and application of basic modeling techniques.

Advanced 3D Modeling and Assemblies

Core Concepts:

Advanced 3D modeling techniques (sweeping, lofting, surfacing)

Complex assemblies and configurations

Working with large assemblies

Data management and version control

Advanced rendering and visualization techniques

Software Training:

Advanced modeling techniques within the chosen 3D CAD software

Creating complex assemblies with multiple parts and moving mechanisms

Utilizing advanced assembly features (configurations, constraints)

Rendering and creating high-quality visualizations

Case Study:

"The Slider-Crank Mechanism": Students model a slider-crank mechanism, demonstrating understanding of reciprocating motion through the creation of a virtual prototype.

Manufacturing Processes and Introduction to CAM

Core Concepts:

Manufacturing processes (machining, forming, casting)

CNC machining principles (G-code, M-code)

Toolpath generation concepts (milling, drilling, turning)

Introduction to CAM software (e.g., Fusion 360 CAM, Mastercam)

Basic CAM operations (milling, drilling)

Software Training:

Introduction to a basic CAM environment within the chosen CAD/CAM software

Importing 3D models into the CAM environment

Defining basic machining operations

Generating simple toolpaths (milling, drilling)

Basic simulation of the machining process

Case Study:

"The Simple Bracket": Students design a simple bracket and then generate basic toolpaths for milling operations. This provides a hands-on experience with the CAM process and introduces the concept of translating a 3D model into a manufacturing plan.

Project

Design and Manufacture of a Precision Jig for a Specific Part

This project focuses on the integration of CAD Software for 3D modeling and a suitable CAM software  for CNC machining to design and manufacture a precision jig for holding a specific part during a manufacturing process.