Firstly, there are PC-based controllers based on software like Mach3, LinuxCNC, and FlashCut that are designed to turn regular computers into CNC controllers. In terms of hobbyist CNC controllers, there are various options to choose from. Industrial controllers are known as OEM controllers and are very expensive, typically used in high production settings with CNC machines manufactured by the likes of Haas, Fanuc, and Mazuk. Different controllers are built on different CNC software sometimes a controller manufacturer’s proprietary software and other times third-party software.ĬNC controllers were typically only used in industrial settings until around a decade ago, but recent years have seen many of the features of industrial controllers become available to hobbyists, too. There are two main components to a CNC controller – the physical control board itself and the software it runs on. It uses g-code to send the necessary signals to your machine’s motors for it to perform tasks, whether that be drilling, cutting, engraving, or anything else. What is a CNC Controller?Ī CNC controller can be thought of as the “brain” of a CNC machine and forms the link between your computer system and your CNC machine’s mechanical components. We’ll then finish by taking a look at some of the finest hobbyist controllers on the market that you can buy today. We cover everything you need to know, including the different types of CNC controllers and how they work. That’s why we’ve created this ultimate guide to CNC controllers. This can make choosing the best controller for you somewhat tricky, particularly if you’re a beginner. The controller converts your g-code into the instructions the CNC machine uses to mill your final piece.ĬNC controllers are also one of, if not the most complex part of a CNC machine. Whether you’re using a router, mill, lathe, plasma cutter, or laser cutter, a CNC controller is a vital component of any CNC machine.