Learning Path & Checkpoints

Seven modules, in dependency order. Start at Module 1 and work through; each module has a checkpoint you must pass before moving on.

Concept

CNC programming is cumulative. Trying subprograms before you understand coordinates is like building a house from the roof. The path below follows the same seven modules as the course homepage; each links to the first lesson in that module.

Why It Matters

A structured path prevents the "I read everything but can't program anything" problem. Each checkpoint requires writing and verifying code — not just reading. Most new programmers get stuck because they try to jump from G01 to G76 without mastering offsets and coordinates.

Estimated Time per Module

Total beginner-to-competent: about 3–4 weeks of focused study. This is not a speed run — mastery comes from writing and debugging real programs.

How It Works

Module 1 · Foundations

Start Module 1 →

1. What is CNC Programming?
2. Machine Fundamentals for Programmers
3. Safe Program Start & Restart
4. Programming Math
5. From Drawing to Process Plan
6. Coordinate Systems

Checkpoint: Explain G90 vs G91 in your own words, and write the coordinate values for three points on a part drawing.

Module 2 · Language and Control

Start Module 2 →

1. Planes, Units & Numeric Conventions
2. Reading & Structuring a Program
3. G-Code Fundamentals
4. Modal State & Execution
5. M-Codes & Machine Functions
6. Controller Dialects

Checkpoint: Read a 15-line G-code program and explain every line, including which codes are modal.

Module 3 · Setup and Motion

Start Module 3 →

1. Spindle Speed & Feed
2. Work Offsets & Datums
3. Tool Length & Geometry Offsets
4. Rapid & Linear Motion
5. Circular & Helical Interpolation
6. Cutter Radius Compensation

Checkpoint: Set up G54 and H01 offsets, and write a linear profile program with G41 lead-in.

Module 4 · Milling Applications

Start Module 4 →

1. Milling Strategies: Facing, Slots, Pockets
2. Drilling, Pecking & Boring
3. Canned Cycles & Hole Patterns
4. Tapping & Thread Milling
5. Subprograms

Checkpoint: Drill a 4-hole pattern with G83 and a subprogram, then edit the depth in one place.

Module 5 · Turning Applications

Start Module 5 →

1. Turning Coordinates & Toolpaths
2. Roughing & Finishing Cycles
3. Grooving, Parting & Boring
4. Single-Point Thread Programming

Checkpoint: Complete the stepped shaft turning project from drawing to program.

Module 6 · Verification and Projects

Start Module 6 →

1. Program Verification & First Article
2. Diagnosing Program Problems
3. Common Beginner Mistakes
4. Project: Pocketed Mounting Plate
5. Project: Stepped Shaft

Checkpoint: Run both projects through dry-run, single-block, and first-piece inspection.

Module 7 · CAM and Further Applications

Start Module 7 →

1. CAD, CAM & Post-Processing
2. Macro Programming Foundations
3. Rotary Axes & Probing
4. Cycle Time & Process Improvement
5. Exercises & Final Assessment

Checkpoint: Read a random shop-floor program and explain every line; pass the final exercises.

Example

If you're starting now: do Module 1 first. Don't skip to G-code projects. Coordinates and offsets are the foundation; everything else builds on them.

Common Mistakes

• Skipping modules — if you can't explain G90 vs G91, don't start subprograms.
• Reading without practicing — every checkpoint requires writing code, not just reading.

Practice

1. What should you learn first?

2. When are you ready for subprograms?

3. What's the Module 1 checkpoint?