ECam - Nice, fast and intuitive. A 2D Cad/Cam designed for simple machining operation
PowerMill - PowerMill is an advanced CAM software that comes with a flexible way to get done with your complex high-speed and five-axis machining processing.
FreeCAD - An open-source parametric 3D modeler
Inventor CAM - Inventor CAM is one of the agile, integrated CAM software, aiding out users to streamline their manufacturing process having rich functionalities and features in place.
PyCAM - PyCAM is a toolpath generator for 3-axis CNC machining.
MeshCAM - MeshCAM is the fastest way to generate gcode