I can build the first prototype of a VEX mechanism and identify early stability, alignment, or motion issues.
POE Unit 1 • Lesson 1.15
Prototype Build Day 1: Structure and Motion
Focus question: How do teams turn a mechanism plan into a stable first prototype?
Mission Briefing
Today’s Plan
A focused lesson sequence that builds toward the VEX Rover Mechanisms Challenge.
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Lesson Targets
What You Will Be Able to Do
Prototype progress evidence and issue log
The first prototype has a rigid structure, aligned motion components, free movement, and documented issues before powered testing.
Activity Flow
How the Lesson Moves
This page highlights the lesson elements you need for practice, evidence, and submission.
1. Stage components
Verify parts, tools, fasteners, and the current build plan before assembly.
2. Build the structure first
Create a square, rigid frame and support shafts before adding motors or loads.
3. Test motion by hand
Rotate or move the mechanism slowly and log binding, rubbing, or misalignment.
Lesson Interactive
Sequence Prototype Build Day 1
Reorder the steps so the team establishes structure and alignment before powered testing.
Build-Day Goal
Finish with a rigid, hand-testable mechanism and a documented issue list. Do not connect the motor until the mechanism moves freely by hand.
Reorder the Steps
- Install shafts, bearings, gears, and spacers.
- Review the plan and stage the required components.
- Photograph the build and record alignment or motion issues.
- Build and square the rigid frame.
- Rotate the mechanism by hand and correct binding.
Use the arrow buttons to place the work in a safe engineering order.
Today’s Work
Main Deliverable
Prototype Progress Evidence and Issue Log
Document the first build state and the most important issue discovered.
- Capture one labeled photo or sketch showing structure and motion components.
- Log the issue, likely cause, evidence, and planned correction for the next build session.
Exit Ticket
Mission Debrief
One way today’s lesson connects to an aerospace mechanism or VEX rover system.
One type of evidence you could use to support a design decision.
One question you still have about mechanisms, energy, power, or the Unit 1 challenge.
Resources
Lesson Resources
Principles of Engineering
Return to the POE course hub for units, resources, certifications, and current course information.
VEX Rover Mechanisms Challenge
Use this unit project context when connecting the lesson to mechanism planning, testing, and design review evidence.