![]() USB communication bus is a standard bus that all newer PCs are equipped with. In 2010s, parallel ports are becoming extinct and simple solutions to interfacing a standard PC with a CNC machine are becoming rare. Parallel (LPT) port based CNC motion controllers were highly popular in the past, driving a widespread of hobby CNC machines and plethora of various affordable LPT motion controllers, which were also used in smaller and medium sized commercial CNC machines. Smaller CNC machines often use a standard off-the-shelf PC and a customized interface to motor drivers. ![]() ![]() Now, let’s talk about USB CNC controllers more specifically… Let it be a mill, a lathe, EDM or a plasma cutter, the precise positioning of the work tool is controlled and supervised by a CNC controller, which generates signals that turn or move the actuators (motors) of the machine. These machines drive the production of complex and precisely dimensioned objects out of variety of materials. Nowadays, one cannot imagine production processes without the use of computer numerical control (CNC) machines.
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