FreeCAD

FreeCAD is a free, open-source software that allows users to create precise 3D models and designs. It's used by engineers, architects, hobbyists, and students to design objects, parts, and structures with detailed accuracy. Think of it as a digital toolbox for drawing solid shapes, shaping components, and simulating how they fit or function together. Its features are flexible enough for complex projects like machine parts and buildings, while user-friendly enough for beginners to learn. FreeCAD helps turn ideas into detailed digital models that can be tested, modified, and eventually manufactured or built.