Learning Targets
- Assemble printed components carefully and safely.
- Identify fit differences between CAD and physical parts.
- Document issues with photos, notes, or measurements.
IED Unit 3 • Lesson 3.11
Prototype Assembly Build Day
Focus question: How does a printed prototype reveal real-world fit and assembly issues?
Mission Briefing
Today’s Plan
Use this page with the lesson presentation, your engineering notebook, and the tools or evidence assigned for Build the Physical Rocket Prototype.
Success Looks Like
You can assemble the printed rocket prototype while recording real-world fit evidence.
LaunchLearnApplyCheckSubmit
Opening Prompt
How does a printed prototype reveal real-world fit and assembly issues?
Connect your response to the decision, evidence, or quality standard required for Build the Physical Rocket Prototype.
Reveal: useful engineering move
This lesson is ready to move forward when the evidence meets this standard: The prototype is assembled without forcing or damaging parts, and fit issues are recorded rather than hidden.
Core Skill
What We Are Practicing
Physical prototypes reveal tolerances, surface quality, and assembly issues.
Build notes should capture problems as they happen.
A prototype is evidence for the final design package.
Your Task
Build the Physical Rocket Prototype
Assemble the printed components carefully and document how the real parts compare with the CAD assembly.
- Inspect each printed component before assembly.
- Follow the planned assembly order.
- Record fit, alignment, and any required temporary adjustment.
- Photograph the assembled prototype from a clear angle.
Quality check: The prototype is assembled without forcing or damaging parts, and fit issues are recorded rather than hidden.
Lesson Interactive
Sequence the Prototype Build
Put the physical build steps in a safe order that protects the parts and produces useful evidence.
Printed Part Set
Build rule: Never force an unverified fit. Inspection and dry fitting come before final assembly.
Put the Steps in Order
- Complete the planned assembly
- Inspect every printed part for damage or warping
- Photograph and record the completed prototype
- Dry-fit each connection without forcing it
- Verify alignment, retention, and movement
Inspect and dry-fit before final assembly, then verify and document the result.
What You Will Submit
Prototype Assembly Evidence
Submission standard: The prototype is assembled without forcing or damaging parts, and fit issues are recorded rather than hidden.
Resources
Lesson Resources
Lesson 3.11 PowerPoint
Use the lesson slides for guided practice, interactive checks, and the exit ticket.
Introduction to Engineering Design
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