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List of free MCAD programs.
Creo Elements/Direct Modeling Express is a popular 3D CAD choice for leaders in product design who have short design cycles and frequent one-off designs. Its speed, flexibility and responsiveness to change also make it the ideal tool for short-series production runs. Download this free 3D CAD software and create assemblies with up to 60 unique parts. Use it as long as you like. Once you’ve registered and downloaded the software, it’s yours to use indefinitely.
eMachineShop CAD Software is an easy to use CAD package, with simple and interactive user interface.
Software tools not only allow users to draw objects, but you can actually have your parts made!
eMachineShop is the remarkable new way to create the custom metal parts and plastic parts you need.
The creation of geometrical elements / NC-programs with gCAD3D can be done by interactive generated geometric objects or manually generated commands or by the import module (Step - Iges - dxf) or by the Mockup import module (Vrml-1 - obj ..) or by loading a datafile created by program or by special importprocessors (user-programs)
MEDUSA4 Personal is a powerful, free 2D/3D CAD package.
Its extensive design functionality, similar to the most advanced commercial package, includes 2D Drafting, 3D Modelling, Parametrics, Raster Image Integration, Sheet Metal Design
Open CASCADE Technology, 3D modeling & numerical simulation is a software development platform freely available in open source. It includes C++ components for 3D surface and solid modeling, visualization, data exchange and rapid application development.
PowerSHAPE-e provides a unique combination of modelling tools that lets you create detailed, accurate 3D CAD models simply and efficiently. Design, re-engineering, mould design, and modelling for manufacture tools, all combined into one easy-to-use program. Whatever your starting point - concept, design sketch, part-finished design, scanned point cloud - PowerSHAPE-e will help you create a fully detailed CAD model. Best of all, PowerSHAPE-e is totally free, unless you want to export your design to another CAD/CAM system.
Whether you are using 2D across your company or for a specific 2D design process, Solid Edge 2D Drafting will give you an immediate advantage with production-proven capabilities including drawing layout, Goal Seeking, diagramming, and dimensioning. It is fully compliant with ISO, ANSI, BSI, DIN, JIS and UNI, and it's absolutely FREE to download and use.