FreeCAD

FreeCAD is my main tool for parametric 3D modeling. I use it for designing enclosures, brackets, fixtures, and any parts I need to 3D print or machine.

What I like: - Full parametric control - Open file format - Integration with KiCad for board and case fit

I don’t use every feature, but I’ve built a solid workflow around sketching, constraints, and exporting STL/STEP files.