3D Builder is a free, easy-to-use app that allows users to create and edit 3D models. It is available for Windows 10 and is compatible with 3D printing. With 3D Builder, users can start from scratch with a blank canvas or use pre-designed templates to create their own 3D models. The app also provides tools for editing existing 3D models, such as resizing, rotating, and combining multiple objects. Additionally, 3D Builder supports importing and exporting files in various formats, making it suitable for use with 3D printers and other modeling software. Whether you are a beginner or an experienced designer, 3D Builder offers a user-friendly interface and a range of features to bring your creative ideas to life in the world of 3D printing and modeling.