Vectric Aspire - The complete software solution for CNC Routing,
FreeCAD - An open-source parametric 3D modeler
PyCAM - PyCAM is a toolpath generator for 3-axis CNC machining.
SketchUp - 3D for Everyone
MeshCAM - MeshCAM is the fastest way to generate gcode
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.