For light small, and straight cuts, manually using a panel saw like this will give you control and is sufficient enough. If you want to cut from a huge, heavier piece of wood then using a CNC machine like this is more practical. All the worker has to do is preset the coordinates, and the machine cuts accordingly. The good thing about using CNC machines is, not only does it require less man power but it enables you to cut multiple pieces of wood by stacking them up all in one go. You can even achieve curves and bends