Aerospace Component CNC Manufacturing Challenge
Use Fusion and Mach3 to set up the DMC2 Mini, manufacture the approved component, inspect it, complete a fit test, and defend the process.
Why This Matters
This challenge connects the complete classroom workflow: aerospace requirements, Fusion CAD, Fusion Manufacture toolpaths, Mach3Mill post processing, Mach3 verification, supervised DMC2 Mini machining, dimensional inspection, interface fit testing, and process revision.
Aerospace Application Boundary
This component is an educational manufacturing prototype. It is not approved for installation on a crewed aircraft, operational aircraft, or flight-critical system. Any real aerospace application would require additional engineering analysis, material certification, process control, inspection, documentation, and regulatory approval.
Milestones
Production readiness review
Machine setup and dry run
Supervised machining
Deburring and dimensional inspection
Interface fit testing
Final manufacturing design review
Learn Before You Build
Complete these steps in order. Record the requested notes or evidence before moving to the graded activity.
Day 1 — Production readiness
Review the complete digital thread from mission requirements through CAD, drawing, CAM, simulation, posted code, setup sheet, and inspection plan.
Day 2 — Setup and dry run
Observe the teacher model for workholding, work zero, tool setup, program preview, raised-Z run, and stop conditions on the assigned machine.
Day 3 — Controlled machining
Review operator roles, observation zones, feed hold, emergency stop, chip control, and production-log expectations.
Days 4–6 — Inspect, fit, improve, defend
Learn how dimensional evidence, fit testing, nonconformance records, and revision decisions determine whether the prototype is accepted.
Complete the Six-Day Aerospace Component CNC Manufacturing Challenge
- 1DAY 1 — Freeze the approved Fusion design revision. Verify that the technical drawing, requirements table, prototype disclaimer, stock plan, tool list, setup sheet, and inspection plan all reference the same revision.
- 2DAY 1 — Review the complete Fusion setup, operation order, tools, cutting parameters, heights, workholding clearance, simulation, warnings, and estimated cycle time.
- 3DAY 1 — Post the approved setup using the machine-specific pathway. DMC2 Mini uses the teacher-validated Mach3Mill workflow; FoxAlien uses the exact-model controller and teacher-selected post.
- 4DAY 1 GATE — Complete the Production Readiness Checklist and receive written teacher approval.
- 5DAY 2 — Inspect the assigned machine, stock, tool, collet/holder, workholding, fixture, and emergency-stop access.
- 6DAY 2 — Secure and align the stock using the approved method. Record the stock dimensions and workholding locations.
- 7DAY 2 — Complete the approved reference/startup process, establish the work zero, and verify the tool reference.
- 8DAY 2 — Load the approved NC file and compare the controller preview with the approved Fusion simulation.
- 9DAY 2 — Complete the raised-Z, air-cut, or single-block dry run. Verify direction, extents, depth range, clearances, spindle method, feed override, and final position.
- 10DAY 2 GATE — Obtain authorization to begin material cutting.
- 11DAY 3 — Start the program at the teacher-approved reduced feed or first-cut condition.
- 12DAY 3 — Observe continuously from the approved location. Record program start, tool behavior, sound, vibration, chips, pauses, feed changes, interventions, and any nonconformance.
- 13DAY 3 — Stop immediately for loose workholding, incorrect direction, excessive vibration, tool damage, unexpected depth, collision risk, or any unclear condition.
- 14DAY 3 — Complete the approved shutdown, part removal, machine cleaning, and tool inspection.
- 15DAY 4 — Deburr and finish only with approved tools. Preserve all features needed for inspection.
- 16DAY 4 — Inspect every critical feature using the specified measuring tool. Record target, lower limit, upper limit, measured value, error, and pass/fail status.
- 17DAY 4 — Repeat selected measurements to check consistency and identify any result close to a tolerance limit.
- 18DAY 4 — Create a nonconformance report for every failed feature instead of altering or hiding the result.
- 19DAY 5 — Complete the airframe-interface, payload-interface, fastener-access, and cable-clearance fit tests using the educational fixture.
- 20DAY 5 — Compare predicted mass, machining time, and dimensions with the physical results.
- 21DAY 5 — Identify whether the most important improvement belongs in the CAD design, drawing, CAM strategy, setup, machining procedure, inspection plan, or operator workflow.
- 22DAY 5 — Revise the digital manufacturing package without remachining unless a second production run is approved.
- 23DAY 6 — Prepare the final design review with the mission, requirements, CAD, drawing, CAM, NC code, setup, physical part, inspection, fit test, nonconformances, revision, and recommendation.
- 24DAY 6 — Each student completes an individual reflection identifying personal contributions, technical learning, safety decisions, and evidence-based improvements.
- 25DAY 6 — Archive the final Fusion file, drawing PDF, NC file, setup sheet, production log, inspection report, fit-test report, presentation, and reflection in the manufacturing portfolio.
Stop and Verify Before Moving On
Gate 1 — Digital thread approved
Requirements, design, drawing, CAM, simulation, post, and inspection plan match.
Gate 2 — Machine setup approved
Workholding, work zero, tool, controller preview, and dry run pass.
Gate 3 — Part disposition
Inspection and fit-test evidence determine accept, rework, reject, or educational prototype status.
Gate 4 — Final review
Revision and recommendation are supported by manufacturing evidence.
Required Operating Habits
Before You Submit
What You Submit
Required File Traceability
Official References and Videos
Use these resources for learning and verification. Machine operation must still follow the classroom procedure and teacher direction.
NASA Armstrong Machine Shop
See how aerospace technicians connect CAD, CAM, CNC machining, fabrication, and inspection to produce flight-research hardware.
CNC for Beginners: Workholding Basics
Official Autodesk Fusion video on securing stock, reducing setups, and preparing a machine safely.
How to Use Machine Simulation in Autodesk Fusion
Official Autodesk video showing machine selection, part placement, and toolpath simulation.
Official Mach3 Product Manuals
Open the Mach3Mill installation/configuration guide and Mach3Mill usage guide used by the classroom DMC2 Mini.
Official FoxAlien Manuals and Drivers
Open only the manual matching the exact FoxAlien model assigned by the teacher. Controller, homing, spindle, and post-processing steps vary by model.
NIST Basic Measurement Uncertainty Concepts
Use the introductory concepts to understand why every measured dimension is an estimate and why inspection methods must be controlled.
Lesson Resources
CNC Production Readiness Checklist
Open the interactive or printable Unit 4 resource.
Dimensional Inspection Dashboard
Open the interactive or printable Unit 4 resource.
Dimensional Inspection Report
Open the interactive or printable Unit 4 resource.
CNC Production Log
Open the interactive or printable Unit 4 resource.
Fusion-to-Mach3 CAM Workflow
Open the Unit 4 resource.
Mach3 G&M Code Reference
Open the Unit 4 resource.
