ADM Project 4.2.4

Aerospace Toolpath Coding Challenge

Write, simulate, revise, and validate a manual Mach3 .tap program for a simplified aerospace mounting plate.

Back to Unit 4 Learning Steps Student Task What You Submit

Learning targets

Today You Will Learn To

Develop a complete manual program from a dimensioned drawing.
Use simulation and tracing to identify errors.
Validate the final path through a teacher-approved non-cutting or soft-material test.

Manufacturing context

Why This Matters

This project verifies that students can plan a simplified aerospace toolpath, write a Mach3-compatible program manually, inspect the .tap file, and prove the motion in simulation and Mach3 before any supervised validation on the DMC2 Mini.

Educational prototype

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.

Project pathway

Milestones

Plan and manually code

Simulate and diagnose

Validate and defend

Learning sequence

Learn Before You Build

Complete these steps in order. Record the requested notes or evidence before moving to the graded activity.

20 min

Day 1 learning — Plan before coding

Review the dimensioned aerospace mounting plate, code reference, origin, cutter reference, safe Z, and validation criteria.

15 min

Day 2 learning — Code in sections

Follow the teacher demonstration for writing and testing one logical section at a time while preserving each verified revision.

15 min

Day 3 learning — Prove the code

Review controller preview, single-block operation, dry-run evidence, and the difference between code verification and authorization to cut.

Detailed activity procedure

Complete the Three-Day Aerospace Toolpath Coding Challenge

1
DAY 1 — Analyze the drawing. Mark the stock, origin, axes, cutter reference, feature coordinates, safe Z, cutting depth, and final safe position.
2
DAY 1 — Create the complete cutter-center coordinate table and classify every planned move.
3
DAY 1 — Create the code plan with safe start, approach, geometry sections, retracts, return, and program end.
4
DAY 1 GATE — Obtain approval of the coordinate table and movement order before writing the full program.
5
DAY 2 — Write the first program revision using only the approved classroom command subset.
6
DAY 2 — Trace each section immediately after writing it. Correct the section before adding the next one.
7
DAY 2 — Save each verified milestone as a new revision rather than overwriting the last working version.
8
DAY 2 — Run the complete code in the path visualizer and compare the extents and direction with the drawing.
9
DAY 2 GATE — Complete a peer code review for units, modal states, depths, rapid moves, unsupported commands, and end behavior.
10
DAY 3 — Load the approved revision into Mach3 simulation or the teacher-approved controller preview.
11
DAY 3 — Compare the displayed origin, program extents, Z range, movement direction, and final position with the plan.
12
DAY 3 — Complete the assigned pen plot, raised-Z dry run, air cut, or soft-material validation under direct supervision.
13
DAY 3 — Record every discrepancy and create the final revised program.
14
DAY 3 — Present the drawing, coordinate table, code, digital verification, physical/no-cut validation, and remaining limitation.

Required checkpoints

Stop and Verify Before Moving On

Gate 1 — Plan approved

Coordinate table, origin, cutter reference, movement order, and safe Z are correct.

Gate 2 — Code approved

Peer review and digital visualization identify no unresolved code error.

Gate 3 — Validation complete

Controller preview and assigned dry-run method match the drawing.

Safety and process control

Required Operating Habits

Use only teacher-approved files, tools, stock, speeds, feeds, and procedures.
Preserve the last verified working file or code version.
Stop immediately for unexpected motion, unusual sound, vibration, loose workholding, tool damage, or an unclear condition.
Do not operate the CNC mill without the required certification, permission, and supervision.
Record failed trials, defects, and interventions honestly.

Quality check

Before You Submit

The final code has a safe startup, approach, retract, spindle stop, and program end.
Simulation and validation use the same final version.
No cutting occurs without teacher approval and machine readiness.

Student deliverables