Autodesk Inventor Alternatives

FreeCAD

FreeCAD is a general purpose parametric 3D CAD modeler. The development is completely Open Source (LGPL License). FreeCAD is aimed directly at mechanical engineering and product design but also fits in a wider range of uses around engineering, such as architecture or other engineering specialties. FreeCAD features tools similar to Catia, SolidWorks or Solid Edge, and therefore also falls into the category of MCAD, PLM, CAx and CAE.

Features:

• 3D modelling
• Parametric Modeling
• Computer-aided manufacturing (CAM)
• DWG support
• FEM
• Procedural modeling
• Windows XP Compatibility
• 3d Drawing
• Bim
• Drawing 2D

LibreCAD

LibreCAD (originally QCad then CADuntu) is an open source 2D CAD application for Windows, Apple and Linux. It is based on Qt, which is a leading cross-platform application and UI development framework. LibreCAD can read DWG files (and others) as of the latest Nightly build. It writes DXF files, but can also export SVG, JPG, PNG, PDF and other files.

Features:

• Bim
• Construction layers
• Drawing
• Portable

BRL-CAD

BRL-CAD is a powerful cross-platform open source solid modeling system that includes interactive geometry editing, high-performance ray-tracing for rendering and geometric analysis, image and signal-processing tools, a system performance analysis benchmark suite, libraries for robust geometric representation, with more than 20 years of active development.

Features:

• Benchmark analytics
• Image Processing
• 3D modelling

Designspark Mechanical

DesignSpark Mechanical is a 3D modeling software reported to be easy to use so that all engineers will be able to create and share models. Designs can be linked directly to RS/Allied off-the-shelf components for automatic bill of materials generation, part numbers, and costs for included components. DesignSpark Mechanical can export to DXF, SketchUp, ECAD, OBJ, STEP, and STL formats.