Learning Targets
- Use tolerance testing results to predict fit in a larger assembly.
- Identify where clearance, alignment, and contact surfaces matter in the rocket.
- Plan the assembly evidence you will collect across Unit 3.
IED Unit 3 • Lesson 3.1
From Printed Testers to Rocket Assembly
Focus question: How can tolerance testing inform a complete rocket assembly?
Mission Briefing
Today’s Plan
Use this page with the lesson presentation, your engineering notebook, and the tools or evidence assigned for Convert Tolerance Evidence into Assembly Decisions.
Success Looks Like
You can connect tolerance tester evidence to fit decisions in a complete rocket assembly.
LaunchLearnApplyCheckSubmit
Opening Prompt
How can tolerance testing inform a complete rocket assembly?
Connect your response to the decision, evidence, or quality standard required for Convert Tolerance Evidence into Assembly Decisions.
Reveal: useful engineering move
This lesson is ready to move forward when the evidence meets this standard: The assembly decision is directly supported by a specific tolerance-test result.
Core Skill
What We Are Practicing
Printed test results are evidence for future assembly decisions.
Fit problems are easier to solve before the full prototype is printed.
Assembly work connects CAD accuracy, fabrication limits, and documentation.
Your Task
Convert Tolerance Evidence into Assembly Decisions
Use the Unit 2 tester results to decide how two rocket parts should fit in the upcoming assembly.
- Review the final clearance recommendation from Unit 2.
- Identify one rocket connection that depends on that fit.
- State the selected clearance or fit condition.
- Explain how the decision will influence the part models.
Quality check: The assembly decision is directly supported by a specific tolerance-test result.
Lesson Interactive
Choose a Rocket Assembly Fit
Use the Unit 2 tolerance-test evidence to select a clearance for a removable nose-cone connection. Rotate the rocket model to see where the nose and body meet.
Rocket Assembly Reference
Loading rocket model…
Drag to rotate • Scroll or pinch to zoom
Calculating dimensions…
| Clearance | Tester result |
|---|---|
| 0.10 mm | Would not assemble |
| 0.20 mm | Very tight; tools needed |
| 0.30 mm | Secure and removable by hand |
| 0.40 mm | Loose movement |
Select the Design Decision
Choose the clearance that is secure but still removable without tools.
What You Will Submit
Assembly Readiness Note
Submission standard: The assembly decision is directly supported by a specific tolerance-test result.
Resources
Lesson Resources
Lesson 3.1 PowerPoint
Use the lesson slides for guided practice, interactive checks, and the exit ticket.
Introduction to Engineering Design
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