CNC Woodworking Course

Lesson 1 • Measurement and Layout Fundamentals

Introduces precision measuring tools and layout techniques required before any digital or manual cut. Accuracy here prevents compounding errors in machining.

Lesson 2 • Reading Shop Drawings and Specs

Teaches orthographic projection, dimensioning standards, and tolerance notation. Students interpret fabrication drawings used in subsequent design and machining chapters.

Lesson 3 • Material Properties for CNC Work

Surveys wood species, sheet goods, and composites relevant to CNC routing. Material selection directly affects toolpath strategy covered in later chapters.

Lesson 4 • Shop Safety and Hazard Awareness

Covers personal protective equipment, machine guarding, and emergency procedures. Safety compliance is the prerequisite for all hands-on lab sessions.

Lesson 1 • Joinery Design in CAD

Models common wood joints—dovetails, box joints, and mortise-and-tenon—within CAD. Accurate joint geometry ensures fit-up without hand-fitting after machining.

Lesson 2 • Design Validation and File Prep

Applies interference checks, wall-thickness analysis, and file cleanup before export. Clean files reduce CAM errors and machine downtime.

Lesson 3 • CAD Software Interface and Workflow

Orients students to the CAD environment, navigation controls, and file management. A consistent workflow prevents errors when files move into CAM software.

Lesson 4 • 2D Drafting and Profile Creation

Covers line, arc, and spline tools to create closed profiles for routing. Closed, clean geometry is mandatory for reliable toolpath generation.

Lesson 1 • Cutting Physics and Chip Formation

Explains chip load, heat generation, and material removal mechanics. Understanding cutting physics allows students to diagnose and correct poor cut quality.

Lesson 2 • Bit Types and Their Applications

Surveys straight, spiral, V-groove, ball-nose, and specialty bits. Matching bit type to operation reduces cycle time and improves surface finish.

Lesson 3 • Coatings, Lubrication, and Specialty Tooling

Covers TiN, TiAlN, and DLC coatings and their benefits for specific materials. Specialty tooling for plastics and composites is also addressed.

Lesson 4 • Router Bit Geometry and Nomenclature

Explains flute count, helix angle, cutting edge geometry, and shank types. Geometry knowledge enables informed bit selection for each material and operation.

Lesson 1 • 2D Toolpath Operations

Programmes contour, pocket, and drill operations for flat-sheet CNC routing. These operations cover the majority of production woodworking tasks.

Lesson 2 • 3D Surface Machining Toolpaths

Covers parallel, scallop, and pencil-trace strategies for curved surfaces. Students balance surface quality against cycle time through feed and stepover selection.

Lesson 3 • Simulation, Verification, and Post-Processing

Runs toolpath simulation to detect gouges and collisions before cutting. Post-processing converts verified toolpaths into machine-specific G-code.

Lesson 4 • CAM Software Fundamentals

Introduces the CAM environment, stock setup, and coordinate system definition. Correct setup here prevents crashes and scrapped material on the machine.

Lesson 1 • Machine Anatomy and Control Panel

Identifies axes, spindle, gantry, and controller components of a CNC router. Familiarity with hardware is required before any powered operation.

Lesson 2 • Post-Job Inspection and Machine Care

Covers dimensional inspection of cut parts and routine machine maintenance tasks. Consistent maintenance prevents downtime and preserves machine accuracy.

Lesson 3 • Workholding and Spoilboard Management

Covers vacuum tables, T-track clamps, and double-sided tape for secure workholding. Proper fixturing prevents part movement that causes scrapped cuts.

Lesson 4 • Tool Setting and Work Offset Probing

Establishes tool length offsets and work coordinate origins using touch-off probes. Accurate probing is the foundation of dimensional accuracy in every cut.

Lesson 1 • Surface Preparation and Sanding

Covers machine marks removal, grain raising, and progressive grit sanding. Proper prep is the single largest factor in finish coat adhesion and appearance.

Lesson 2 • Adhesives and Mechanical Fasteners

Compares PVA, epoxy, and polyurethane adhesives for wood and composite substrates. Fastener selection is matched to joint load and disassembly requirements.

Lesson 3 • Finishing Coats and Application Methods

Surveys oil, lacquer, polyurethane, and water-based finishes and their application methods. Students apply and evaluate finish coats on project samples.

Lesson 4 • Dry-Fit, Clamping, and Squaring

Establishes dry-fit verification, clamp placement strategy, and squaring techniques. Correct assembly sequence prevents racking and adhesive joint failure.

Lesson 1 • Probing Cycles and Automatic Compensation

Uses on-machine probing to measure stock, detect skew, and update offsets automatically. Probing reduces setup time and eliminates manual measurement errors.

Lesson 2 • 4-Axis Indexing and Rotary Setups

Introduces rotary axis (A-axis) configuration, workholding, and indexing strategies. Rotary capability unlocks cylindrical and multi-face parts impossible on 3-axis machines.

Lesson 3 • Engraving, V-Carving, and Relief Work

Programmes V-carve, flat-bottom carve, and 3D relief toolpaths for decorative work. Students combine multiple toolpath types to achieve professional sign and panel results.

Lesson 4 • High-Speed Machining Strategies

Applies trochoidal milling and adaptive clearing to reduce heat and extend tool life. These strategies are especially valuable in dense hardwoods and composites.

Lesson 1 • Nesting and Sheet Optimisation

Uses nesting software to maximise yield from sheet material and reduce waste. Efficient nesting directly lowers material cost per unit in production runs.

Lesson 2 • Job Costing and Production Scheduling

Calculates material, tooling, machine time, and labour costs per job. Scheduling methods balance machine utilisation against customer delivery commitments.

Lesson 3 • Inspection Tools and Measurement Systems

Covers calipers, height gauges, CMM basics, and gauge R&R studies. Reliable measurement systems validate that CNC output meets design intent.

Lesson 4 • Statistical Process Control Basics

Introduces control charts, Cp/Cpk indices, and sampling plans for dimensional quality. SPC enables early detection of process drift before defects accumulate.