Unit 5: Introduction to CNC Machining

Students will understand the complete CAD-CAM-CNC workflow. Specifically, they will learn:
Computer-Aided Manufacturing (CAM): How to translate a digital design into machine code (G-Code) using specific toolpaths (2D Contour, Pocket, Parallel).
CNC Operations: The safety and setup procedures for operating a Tormach CNC mill, including workholding (clamping) and setting "Work Offsets" (finding zero).
Finishing Techniques: The necessity of post-processing (sanding/painting) to turn a raw machined part into a finished consumer product.

Students will engage in an industrial simulation. Activities include:
Design for Manufacturing: Creating a plaque design in Fusion 360 that stays within the size constraints of the raw stock material.
CAM Programming: Selecting appropriate cutting tools (e.g., flat end mill vs. ball end mill) and generating toolpaths to cut out their design.
Machining: Physically setting up the Tormach machine, loading the material, running the program, and monitoring the cut.
Finishing: Sanding down tool marks and applying paint/stain for a professional look.

Students will demonstrate mastery through the production of a tangible artifact:

• Completed Wood Plaque: A finished physical product that matches their digital design, free of machining defects (burn marks, uncut areas).

• Valid G-Code File: A program that runs safely on the machine without crashing or breaking tools.