Integrated Mechanical Design | GD&T | Tolerance Stack-Up | NPD Project Internship
Integrated Mechanical Design | GD&T | Tolerance Stack-Up | NPD Project Internship
Duration: 8 Weeks
Total Duration: 120 Hours
Structure: 6 Weeks Classes + 2 Weeks Project Preparation
Format: Instructor-Led | Practical Exercises | Engineering Case Studies | Design Activities | Final Industry Project
ABOUT THE INTERNSHIP
This 8-Week Industry-Oriented Mechanical Design & NPD Internship is designed to provide participants with practical exposure to the core engineering activities involved in mechanical product development.
The internship combines three essential areas:
01 — NPD & Mechanical Product Design
Understanding how a product moves from requirement to design release.
02 — GD&T
Understanding how engineering drawings communicate functional geometry, datums and geometric requirements.
03 — Tolerance Stack-Up
Understanding how dimensional and geometric variation affects assembly and product performance.
The first 6 weeks focus on structured technical learning and hands-on engineering exercises.
The final 2 weeks are dedicated to an industry-oriented capstone project, where participants apply the concepts learned throughout the internship to develop and document a mechanical product.
INTERNSHIP OBJECTIVES
By the end of the internship, participants will be able to:
- Understand the complete NPD lifecycle
- Convert customer requirements into engineering requirements
- Develop mechanical product concepts
- Perform basic mechanical design activities
- Apply DFM and DFA principles
- Read and interpret engineering drawings
- Apply GD&T concepts
- Establish Datum Reference Frames
- Interpret Feature Control Frames
- Apply MMC, LMC and RFS concepts
- Perform tolerance stack-up analysis
- Perform Worst Case analysis
- Perform RSS/statistical analysis
- Identify critical tolerance contributors
- Perform tolerance allocation
- Understand manufacturing variation and process capability
- Identify design risks
- Develop basic Design FMEA
- Plan Design Verification activities
- Prepare engineering documentation
- Conduct a design review
- Prepare a basic design release package
- Work on a complete mechanical NPD project
8-WEEK INTERNSHIP STRUCTURE
|
Week |
Focus Area |
Duration |
|
Week 1 |
NPD & Product Development Fundamentals |
20 Hours |
|
Week 2 |
Mechanical Product Design & DFM/DFA |
20 Hours |
|
Week 3 |
GD&T Fundamentals & Form/Orientation Controls |
20 Hours |
|
Week 4 |
GD&T Advanced & Functional Application |
20 Hours |
|
Week 5 |
Tolerance Stack-Up & Worst Case Analysis |
20 Hours |
|
Week 6 |
Statistical Stack-Up, Optimization & Design Review |
20 Hours |
|
Week 7 |
Capstone Project Preparation |
20 Hours |
|
Week 8 |
Capstone Project Completion & Presentation |
20 Hours |
Total 8 Weeks | 120 Hours
WEEK 1 — NPD & PRODUCT DEVELOPMENT FUNDAMENTALS
Module 1 — Introduction to NPD
Introduction to NPD
Topics
- What is New Product Development?
- Product development lifecycle
- NPD phases
- Role of the Mechanical Design Engineer
- Customer requirements
- Engineering requirements
- Design inputs
- Design outputs
- Product specifications
- Functional requirements
- Performance requirements
- Critical characteristics
- Design reviews
- Engineering gates
Practical Activities
- Analyze a product requirement
- Identify engineering requirements
- Define measurable product specifications
- Identify critical characteristics
Module 2 — Requirements & Concept Development
Requirements & Concept Development
Topics
- Voice of Customer
- Requirement conversion
- Functional decomposition
- Product architecture
- Concept generation
- Concept screening
- Concept evaluation
- Engineering trade-offs
- Decision matrix
- Concept selection
Practical Activity
Generate and select a mechanical product concept based on defined requirements.
WEEK 2 — MECHANICAL PRODUCT DESIGN & DFM/DFA
Module 3 — Mechanical Product Design
Mechanical Product Design
Topics
- Mechanical design process
- Component design
- Assembly design
- Load paths
- Mechanical interfaces
- Fasteners
- Shafts
- Bearings
- Brackets
- Housings
- Springs
- Material selection
- Design calculations
- Strength and stiffness considerations
- Design margins
Practical Activity
Develop a preliminary mechanical design based on product requirements.
Module 4 — DFM & DFA
DFM & DFA
Topics
- Design for Manufacturing
- Design for Assembly
- Manufacturing process considerations
- Machined components
- Sheet-metal components
- Cast components
- Injection-molded components
- Standard components
- Part-count reduction
- Assembly accessibility
- Manufacturing tolerances
- Cost considerations
- Design simplification
Practical Activity
Review an assembly and identify opportunities for manufacturing and assembly improvement.
WEEK 3 — GD&T FUNDAMENTALS
Module 5 — GD&T Fundamentals & Drawing Interpretation
GD&T Fundamentals & Drawing Interpretation
Topics
- Introduction to GD&T
- Purpose of GD&T
- Limitations of ± dimensioning
- GD&T terminology
- GD&T symbols
- Feature
- Feature of size
- Datum feature
- Basic dimension
- Feature Control Frame
- Tolerance zones
- Engineering drawing interpretation
Practical Activity
Interpret GD&T requirements from engineering drawings.
Module 6 — Form Controls
Form Controls
Topics
- Straightness
- Flatness
- Circularity
- Cylindricity
- Form tolerance zones
- Functional applications
- Size and form relationship
Practical Activity
Interpret form controls on shafts, holes and machined surfaces.
Module 7 — Datums & Datum Reference Frames
Datums & Datum Reference Frames
Topics
- Datum features
- Datum simulators
- Primary datum
- Secondary datum
- Tertiary datum
- Datum Reference Frame
- Degrees of freedom
- 3-2-1 constraint concept
- Datum sequence
- Functional datum selection
Practical Activity
Establish a Datum Reference Frame for a mechanical component.
WEEK 4 — ADVANCED GD&T & FUNCTIONAL APPLICATION
Module 8 — Orientation Controls
Orientation Controls
Topics
- Parallelism
- Perpendicularity
- Angularity
- Orientation tolerance zones
- Datum references
- Functional applications
- Form vs orientation
Practical Activity
Analyze orientation requirements for surfaces, holes and shafts.
Module 9 — Position & Material Conditions
Position & Material Conditions
Topics
- Position tolerance
- True position
- Basic dimensions
- Hole location
- Pin location
- Pattern location
- RFS
- MMC
- LMC
- Bonus tolerance
- Virtual condition
- Functional gaging concepts
Practical Activity
Analyze a hole-pattern drawing and calculate allowable positional variation.
Module 10 — Profile & Advanced GD&T
Profile & Advanced GD&T
Topics
- Profile of a line
- Profile of a surface
- Profile tolerance zones
- Profile with datum references
- Composite controls
- Feature patterns
- Datum shift
- Circular runout
- Total runout
Practical Activity
Analyze a complex mechanical drawing and interpret its complete GD&T requirements.
WEEK 5 — TOLERANCE STACK-UP & WORST CASE ANALYSIS
Module 11 — Tolerance Stack-Up Fundamentals
Tolerance Stack-Up Fundamentals
Topics
- Purpose of tolerance stack-up
- Functional requirements
- Critical characteristics
- Tolerance contributors
- Tolerance chains
- Gap
- Clearance
- Flushness
- Interference
- Stack-up direction
- Tolerance loops
- Stack-up equations
Practical Activity
Build a tolerance loop from a mechanical assembly.
Module 12 — 1D Tolerance Stack-Up
1D Tolerance Stack-Up
Topics
- Bilateral tolerances
- Unilateral tolerances
- Limit dimensions
- Positive and negative contributors
- Maximum and minimum conditions
- 1D stack-up methodology
Practical Activity
Perform a complete 1D tolerance stack-up.
Module 13 — Worst Case Analysis
Worst Case Analysis
Topics
- Worst Case methodology
- Maximum condition
- Minimum condition
- Arithmetic stack-up
- Maximum gap
- Minimum gap
- Maximum interference
- Assembly acceptance criteria
Practical Activity
Determine whether an assembly satisfies its functional requirement under Worst Case conditions.
WEEK 6 — STATISTICAL ANALYSIS, OPTIMIZATION & DESIGN REVIEW
Module 14 — RSS & Statistical Stack-Up
RSS & Statistical Stack-Up
Topics
- Worst Case vs statistical analysis
- Random variation
- Normal distribution
- Mean
- Standard deviation
- Variance
- RSS methodology
- 3σ, 4σ, 5σ and 6σ
- Statistical assembly variation
- Yield
Practical Activity
Perform an RSS analysis and compare it with the Worst Case result.
Module 15 — Manufacturing Variation & Process Capability
Manufacturing Variation & Process Capability
Topics
- Design tolerance vs manufacturing variation
- Process variation
- Mean shift
- USL and LSL
- Cp
- Cpk
- Pp
- Ppk
- Process capability
- Assembly yield
Practical Activity
Evaluate manufacturing variation and its impact on assembly performance.
Module 16 — Tolerance Allocation & Optimization
Tolerance Allocation & Optimization
Topics
- Tolerance allocation
- Critical contributors
- Sensitivity
- Dominant contributors
- Tightening vs relaxing tolerances
- Manufacturing capability
- Cost vs tolerance
- Functional dimensioning
- Design robustness
- Tolerance optimization
Practical Activity
Optimize tolerances while maintaining the functional requirement.
Module 17 — Design Risk & Engineering Review
Design Risk & Engineering Review
Topics
- Design risk
- Design FMEA concepts
- Failure modes
- Causes and effects
- Risk identification
- Design mitigation
- Design review
- Engineering documentation
- Design changes
- Design release
Practical Activity
Review a mechanical design and identify design risks and improvement opportunities.
WEEK 7 — CAPSTONE PROJECT PREPARATION
CAPSTONE PROJECT PREPARATION
Project Phase 1 — Requirement & Concept
Participants will begin their individual/team NPD project.
Activities
Define the product problem
↓
Identify customer/user requirements
↓
Define engineering requirements
↓
Develop product specifications
↓
Perform functional decomposition
↓
Generate design concepts
↓
Evaluate concepts
↓
Select final concept
Project Deliverables
- Problem statement
- Customer requirements
- Engineering requirements
- Product specifications
- Functional requirements
- Concept sketches
- Concept selection matrix
- Selected concept
WEEK 8 — CAPSTONE PROJECT COMPLETION & PRESENTATION
CAPSTONE PROJECT COMPLETION & PRESENTATION
Project Phase 2 — Engineering Design & Documentation
Participants will develop the selected concept into an engineering-level mechanical product design.
Activities
Mechanical Design
↓
Material Selection
↓
DFM / DFA Review
↓
GD&T Definition
↓
Tolerance Stack-Up
↓
Design Risk Analysis
↓
Design Verification Planning
↓
Engineering Documentation
↓
Design Review
↓
Final Project Presentation
CAPSTONE PROJECT DELIVERABLES
Each participant/team will prepare:
- Product Requirement Document
- Problem statement
- Customer requirements
- Engineering requirements
- Product specifications
- Concept Development
- Functional decomposition
- Multiple concepts
- Concept evaluation
- Final concept selection
- Mechanical Design
- Product architecture
- Component design
- Assembly concept
- Material selection
- Design calculations
- Engineering Drawing
- Component drawing
- Assembly drawing
- Dimensions
- Tolerances
- GD&T
- Datum scheme
- Tolerance Analysis
- Functional requirement
- Tolerance loop
- Contributors
- Worst Case analysis
- RSS/statistical analysis
- Critical contributor identification
- Tolerance allocation
- Design Risk Analysis
- Failure modes
- Design risks
- Risk mitigation actions
- Design Verification Plan
- Requirement
- Verification method
- Acceptance criteria
- Final Design Review
Participants will present:
- Product requirement
- Design concept
- Mechanical design
- GD&T strategy
- Tolerance analysis
- Design risks
- Verification approach
- Final engineering recommendations
COMPLETE INTERNSHIP LEARNING PATH
PHASE 1 — UNDERSTAND
NPD Fundamentals
→ Requirements
→ Specifications
→ Concept Development
PHASE 2 — DESIGN
Mechanical Product Design
→ Material Selection
→ DFM / DFA
PHASE 3 — DEFINE
GD&T
→ Datums
→ Feature Controls
→ Functional Requirements
PHASE 4 — ANALYZE
Tolerance Stack-Up
→ Worst Case
→ RSS
→ Statistical Analysis
→ Tolerance Allocation
PHASE 5 — DEVELOP
Capstone Project
→ Product Concept
→ Mechanical Design
→ GD&T
→ Tolerance Analysis
PHASE 6 — PRESENT
Design Review
→ Engineering Documentation
→ Design Verification Plan
→ Final Presentation
SKILLS YOU WILL DEVELOP
By completing this internship, you will gain practical exposure to:
New Product Development
Mechanical Product Design
Engineering Drawing
GD&T
Datum Reference Frames
Tolerance Stack-Up
Worst Case Analysis
RSS / Statistical Analysis
Tolerance Allocation
DFM / DFA
Design Risk Analysis
Design FMEA
Design Verification
Engineering Documentation
Design Reviews
Design Release
FINAL INTERNSHIP OUTCOME
The internship follows a complete industry-oriented product development journey:
Customer Requirement
↓
Engineering Requirement
↓
Product Specification
↓
Concept Development
↓
Concept Selection
↓
Mechanical Product Design
↓
DFM / DFA
↓
Engineering Drawing
↓
GD&T
↓
Tolerance Stack-Up
↓
Design Risk Analysis
↓
Design Verification
↓
Design Review
↓
Final Design Documentation
Who Should Attend?
This internship is suitable for:
Mechanical Engineering Students | Mechanical Design Engineers | CAD Engineers | Product Development Engineers | NPD Engineers | Manufacturing Engineers | Quality Engineers | Engineering Professionals
Prerequisites
Basic understanding of:
- Engineering drawing
- Basic mechanical design
- Mechanical components
- Basic manufacturing concepts
Prior professional experience in NPD, GD&T or tolerance stack-up is not required.
INTERNSHIP FORMAT
8 Weeks
120 Hours
6 Weeks Technical Classes
2 Weeks Capstone Project
Theory + Worked Examples + Engineering Drawings + Hands-On Exercises + Case Studies + Design Activities + Final Project
Focus
Practical | Industry-Oriented | Mechanical Design | GD&T | Tolerance Stack-Up | NPD | Project-Based Learning