I’ve had the need for an inexpensive 3D CAD tool to design basic enclosures and to better convey ideas in a common format. OnShape definitely foots the bill. It’s a very robust tool that’s capable of integrating with existing CAD tools such as Solidworks and AutoCAD. That way I can take an existing design and modify it as needed. It’s definitely worth a look and the best part? Free for hobbyists and makers!