CNC Fabrication: 3, 4 and 5Axis CNC Explained ...
In 4axis CNC milling, a fourth axis is added to the movement of the cutting tool, which allows rotation around the xaxis. So, now there are four axes – x, y, z and Aaxis (rotation around the xaxis). Most 4axis CNC machines also allow the workpiece to be rotated too, which is known as the Baxis, effectively allowing the machine to act as ...