Capacitățile de modelare a solidelor ale FreeCAD se bazează pe kernelul Open Cascade Technology (OCCT), un sistem CAD de calitate profesionistă, care oferă crearea și manipularea geometriei avansate 3D.
The Part Workbench can also create objects that are not solids, such as faces, shells, and objects with only edges or vertices. It also provides a variety of general purpose tools for geometry manipulation, geometry validation, and making copies.
The PartDesign Workbench uses an alternative workflow for creating solids. For a detailed discussion of the Part Workbench versus the Part Design Workbench see Part and Part Design.
The Std Measure tool replaces the tools listed below. introduced in version 1.0
See Part scripting.