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What Is 3D Design?
3D design means creating objects on a computer that have width, height, AND depth — just like real objects! Unlike a flat drawing (2D), a 3D model can be rotated and viewed from any angle. TinkerCAD is a free, browser-based 3D design tool perfect for beginners. Professional engineers use similar tools (like SolidWorks and Fusion 360) to design everything from phone cases to spacecraft!