
If you're going to be using your computer for CAD and modelling, avoid repetitive strain injuries by getting a Logitech MX Ergo trackball mouse, available on Amazon. While it isn't particularly user-friendly for beginners, Solid Edge Community Edition is a solid piece of modelling software that lets you take your time and grow into it before you commit to buying a paid plan. Solid Edge is great for all manner of 3D and 2D modelling applications, from architectural layouts and mechanical assemblies, to 3D modelling and printing. FreeCAD is a open-source (under the LGPLv2+ license). Community Edition cuts down on a handful of advanced CAM features, but offers a perpetual, offline licence-a feature that differentiates Solid Edge from the competition. TekyMeky FreeCAD - 2D 3D CAD - Uses AutoCAD DWG File - Computer Aided Design Software DVD (1, 1 PC).

The Community Edition of Siemens Solid Edge is designed exclusively for hobbyists and cannot be used to produce commercial content, but there is also an option to apply for a free licence if you have a start-up that's under three years old. Siemens Solid Edge is a CAD package that competes on the same level as the big players, like AutoCAD, SolidWorks, and Inventor, although its approach to modelling puts a unique twist on the normal parametric workflow.
