Did you know your CNC router can handle more than just wood? Learn the relevant details for cutting aluminum with a CNC router, including 7 useful tips! When most people think of machining metals such as aluminum, they think of a high-end milling machine. Such a machine is capable of extremely complex work, with spindles spinning the cutting tool at speeds comparable to most high-speed drills. A CNC router, however, has a spindle operating at a much higher rate of speed than a typical mill. They are primarily used for cutting wood materials in operations such as rounding edges, slot cutting, or lettering. Although it might not always be expressly mentioned, CNC routers are capable of cutting aluminum, in general. In the following, we’ll take a closer look at how this is possible and review a few tips that’ll make it easier. First, let’s take the opportunity to explain that, here, “cutting” refers to both the separation of an aluminum sheet into two or more pieces as well as slotting or making pockets into an aluminum plate. Basically, we are referring to the removal of material from either aluminum sheets or plates. This is done through the use of an endmill cutting bit.  Machin...