Learn the basics of parametric 3D design using FreeCAD, an open-source application ideal for beginners interested in 3D printing. This 28-minute tutorial covers essential CAD concepts, FreeCAD installation, getting started with the software, constraints and model construction, hollowing out shapes, and exporting designs for 3D printing. Gain hands-on experience with a user-friendly program that runs on Windows, macOS, and Linux, perfect for those new to 3D design and looking to create models for 3D printing.