Fusion 360 CAD, CAM, and 4 Axis Machining. Let’s walk through the process from design to chips, discuss setting up the WCS, using the NC Program feature to store post processor settings, and how to use multi-axis rotary and flow toolpaths. Today we’re machining with the Tormach mciroARC 4! Not only is this really easy and quick to load into the machine, the microARC has a harmonic drive, which is great for reducing backlash.