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. This 3D modeling program is free for personal use, or for students Keep in mind that the free version of Sketchup is a web platform. 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. LibreCAD is a high-quality, 2D-CAD modeling platform.

Solid Edge is great for all manner of 3D and 2D modelling applications, from architectural layouts and mechanical assemblies, to 3D modelling and printing. SketchUp was originally developed by Google and was one of the greatest free CAD packages ever put on the market. 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. 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. The best open source alternative to SketchUp is FreeCAD. 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.

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