This is a precision machining challenge that pushes the limits of toolpath strategy, workholding, and spatial reasoning. 🔩 The process typically involves: • Starting with a solid billet (often aluminum or brass) • Removing internal material through carefully planned toolpaths • Indexing the part on multiple axes (3-axis minimum, often 4- or 5-axis CNC) • Using long-reach end mills to access internal geometry • Maintaining tight tolerances to prevent collision or breakage The outer cube remains intact while the inner cube is progressively freed — without detaching it. Every cut must consider: • Tool deflection • Chip evacuation • Heat buildup • Structural rigidity of the remaining material This is where CAM programming (Computer-Aided Manufacturing) becomes the real hero. Simulation, collision detection, and step-down optimization are critical. Projects like this aren’t just aesthetic — they demonstrate: ✨ Multi-axis machining capability ✨ Advanced toolpath planning ✨ Precision tol...