Learning Targets
- Add electrical or electromechanical features to the prototype safely.
- Secure components so wires, motors, and moving parts do not interfere.
- Test the integrated subsystem before full prototype testing.
IED Unit 4 • Lesson 4.16
Prototype Build Day 2: Electrical or Electromechanical Integration
Focus question: How can electrical or electromechanical features be integrated safely into a prototype?
Your lesson guide
Objective
Add electrical or electromechanical features to the prototype safely. Secure components so wires, motors, and moving parts do not interfere. Test the integrated subsystem before full prototype testing.
Materials
For the online work: a browser and your engineering notebook. Follow the activity’s materials list for any physical build, and get teacher approval before using equipment.
Plan your time
Suggested work block: 45–60 minutes. Physical builds and projects may span several classes; follow your teacher’s schedule.
Mission Briefing
Today’s Plan
Use this page with the lesson presentation, your engineering notebook, and the tools or evidence assigned for Integrate the Electrical or Electromechanical Subsystem.
Success Looks Like
You can integrate a circuit, motor, or electrical feature while checking safety, fit, and function.
LaunchLearnApplyCheckSubmit
Opening Prompt
How can electrical or electromechanical features be integrated safely into a prototype?
Connect your response to the decision, evidence, or quality standard required for Integrate the Electrical or Electromechanical Subsystem.
Reveal: useful engineering move
This lesson is ready to move forward when the evidence meets this standard: The integrated subsystem operates safely and does not create interference, loose wiring, or uncontrolled motion.
Core Skill
What We Are Practicing
Integration is where separate subsystems become one working prototype.
Wires, motors, switches, and moving parts must be placed safely and intentionally.
An integrated subsystem should be tested before the final system test.
Your Task
Integrate the Electrical or Electromechanical Subsystem
Add the verified circuit, motor, or control component to the mechanical prototype using safe routing and secure connections.
- Review the approved circuit and integration locations.
- Mount components without blocking mechanism travel.
- Route and secure conductors away from moving parts.
- Perform an incremental power and function check.
Quality check: The integrated subsystem operates safely and does not create interference, loose wiring, or uncontrolled motion.
Lesson Interactive
Diagnose an Electrical Integration Fault
Use voltage and current evidence to locate a circuit problem rather than replacing parts at random.
Observed evidence
- Battery voltage: 6.0 V
- Motor positive terminal: 6.0 V
- Motor does not turn
- Measured circuit current: 0 A
Question: Which fault best explains voltage at the motor but no current?
Voltage can be present at one terminal even when an open return path prevents current flow.
What You Will Submit
Integrated Prototype Check
Submission standard: The integrated subsystem operates safely and does not create interference, loose wiring, or uncontrolled motion.
Resources
Lesson Resources
Lesson 4.16 PowerPoint
Use the lesson slides for guided practice, interactive checks, and the exit ticket.
Introduction to Engineering Design
Return to the IED course hub for units, resources, certifications, and current course information.
Build your lesson report
Checkpoint: is your evidence ready?
- Check calculations, units, labels, and measurements against the activity requirements.
- Record what actually happened, including unexpected results.
- Explain what you changed and why; attach required drawings, photos, CAD, or code in your classroom assignment.
Submit the evidence specified in the activity and your classroom assignment. The report below collects your notes, calculations, observations, and reflections; attach any required drawings, photos, CAD, or code separately.
A PDF download is not a submission. Review it, then upload it and any required attachments through your classroom assignment system.