olid Edge 2D drafting is not an Open Source CAD program but rather a robust, professionally supported tool from Siemens PLM Software. As such it is particularly well-suited to users needing 2D mechanical CAD tools.
Find more information on Solid Edge 2D drafting on CADplace
If you are looking for 3D CAD modeling software, CADplace has several choices for free and trial versions.
Immediate download, full version Solid Edge 3D CAD design application to use free for 45 days. You get access to online training and videos as well as the Solid Edge news group to share ideas and experience with other CAD designers.
It's an easy choice. Whether you use previous versions of Pro/ENGINEER or another 3D CAD program, you can take a close-up look at Creo Parametric at no cost and with no hassle. Just follow the links to download PTC's flagship CAD platform.