There are many types of CNCs (computer numeric control), but for most woodworkers a 3-axis CNC router is the right tool and also the most affordable. The axis are: X, Y and Z. The spindle or router travels along the long axis and on an overhanging gantry for the perpendicular second axis. The third axis is just the up and down movement of the router or spindle takes as it travels along the other two directions. [Read more…] about How do CNCs Work?