FreeCAD is the leading open-source parametric 3D modeler. While its UI is less polished than SolidWorks 2017, it handles complex assemblies, has a Part Design workbench, and supports STEP/IGES import. Version 0.21+ is remarkably stable.
SolidWorks 2017 offers various analysis and simulation tools, including: solidsquad solidworks 2017
The use of Solidsquad in SolidWorks 2017 offers several benefits, including: FreeCAD is the leading open-source parametric 3D modeler
Solidsquad is a company that provides add-ins and tools for SolidWorks, including report generation and automation. Their tools aim to simplify tasks and enhance productivity. it handles complex assemblies