There have been many attempts at creating a free 3D CAD software, but many fall short in limiting features that many big name brands offer. It is tough for a designer, like myself, to use Google Sketchup or similar software when you are exposed daily to high-end CAD packages like Inventor or SolidWorks. DesignSpark has made user friendly software in the past for PCB layout, and seems they’ve done it again with DesignSpark Mechanical. This 3D CAD package has a clean-looking user interface for dynamic modeling and assemblies. It can also export STEP files – which are useful for CNC CAM packages – and STL files for 3D printing. It will be released for free download September 16th. We will give it a try and I hope you will too!