CNC stands for Computer Numerically Controlled and basically means that the physical movements of the machine are controlled by instructions, such as co-ordinate positions that are generated using a computer.
The term “CNC Machine” is typically used to refer to a device that uses a rotating cutting tool which moves in 3 or more axes (X, Y and Z) to cut-out or carve parts in different types of materials. The information below will focus on what are typically referred to as “CNC Routers” although it would be applicable to most CNC milling / engraving machines, laser cutters, 3D Printers, CNC lathes and plasma cutters.
These machines as explained above work from co-ordinates configured using a computer and also known as G-CODE, this operation comes under the term pre-processors.
Pre-processors are normal associated with tool-pathing software.
Post-processors are normally associated with the control of the machine itself.
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