MatterControl - MatterControl is a free, open source app that lets you organize and manage your 3D prints.
Solid Edge - Solid Edge is an industry-leading mechanical design system with exceptional tools for creating and...
Slic3r - STL-to-GCODE translator for RepRap printers Here comes Slic3r! Its features are: - speed
FreeCAD - An open-source parametric 3D modeler
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
SolidWorks - Dassault Systèmes SolidWorks Corp. develops and markets 3D CAD design software, analysis software, and product data management software. SolidWorks is the leading supplier of 3D CAD product design engineering software.