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IED Unit 3 • Lesson 3.15

Parts List, Balloons, Notes, and Revisions

Focus question: How do parts lists and notes make an assembly drawing usable?

Mission Briefing

Today’s Plan

Use this page with the lesson presentation, your engineering notebook, and the tools or evidence assigned for Complete Assembly Identification and Revision Information.

Learning Targets

  • Connect balloons to a parts list.
  • Use notes to clarify materials, fit, or assembly expectations.
  • Track revisions so changes are visible to others.

Success Looks Like

You can add parts-list and note evidence that makes an assembly drawing usable.

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Opening Prompt

How do parts lists and notes make an assembly drawing usable?

Connect your response to the decision, evidence, or quality standard required for Complete Assembly Identification and Revision Information.

Reveal: useful engineering move

This lesson is ready to move forward when the evidence meets this standard: Every balloon matches the parts list and the notes provide useful information not already obvious from the geometry.

Core Skill

What We Are Practicing

Key Idea 1

Parts lists connect item numbers to real components.

Key Idea 2

Balloons help readers identify which part is which.

Key Idea 3

Notes and revision blocks make drawings more usable and traceable.

Your Task

Complete Assembly Identification and Revision Information

Add balloons, a parts list, notes, and revision information so another person can identify and assemble the components.

  1. Create or verify the parts list from the assembly.
  2. Place non-overlapping balloons that match the item numbers.
  3. Add only the notes needed for assembly or interpretation.
  4. Complete the revision information for documented changes.

Quality check: Every balloon matches the parts list and the notes provide useful information not already obvious from the geometry.

Lesson Interactive

Connect Balloons to the Parts List

Assign the correct item numbers to the assembly components and confirm the current drawing revision.

Assembly Identification

???

Parts-List Entries

Match balloon numbers to the parts list: nose cone 1, body tube 2, fin can 3, current revision B.
What You Will Submit

Annotated Assembly Drawing

  • A completed assembly drawing with balloons and parts list.
  • Updated notes or revision information on the same sheet.

Submission standard: Every balloon matches the parts list and the notes provide useful information not already obvious from the geometry.

Resources

Lesson Resources

Presentation

Lesson 3.15 PowerPoint

Use the lesson slides for guided practice, interactive checks, and the exit ticket.

Course Hub

Introduction to Engineering Design

Return to the IED course hub for units, resources, certifications, and current course information.