FreeCAD

Experience professional 3D CAD modeling without the heavyweight software. FreeCAD is a portable, open-source modeler that delivers a comprehensive set of design tools in a compact package. It targets all user levels with an intuitive interface and deep parametric capabilities, allowing for the creation of highly detailed and editable 3D objects. Packed with configuration parameters and specialized modules, it adapts to various design disciplines like product design, engineering, and architecture. You can run it directly from removable media, making it a perfect companion for on-the-go design work. FreeCAD offers unparalleled freedom and power, completely free of charge.