Will MeshCAM Control Stepper Motors
MeshCAM is only a CAM program- it does not output any commands or data to directly control the motors on your milling machine or router. This means that your machine will need a dedicated machine controller to convert the gcode from MeshCAM into actual motion. Mach3 and EMC2 are two very popular examples but MeshCAM will work with almost any common machine controller.
More information about this software workflow can be found here.