What is CNC and how does it relate to woodworking machines?

As new and used CNC machines really know when to start, stop and loop to produce parts that the operator has programmed a job? Everything happens in an automated process (or semi-automatic), known as Computer numeric control (CNC). Before describing what is CNC and, it is important to understand its predecessor, numerical control (NC).

After the second world war, when mass production was all the rage, NC machines were introduced in production. NC machines were wired with parameters that were nearly impossible to change. The works were programmed using punch cards. Also works with pre-programmed, these machines required significant human intervention. For example, a numeric control drill requires many actions to be taken for the production of a product. The process can be so complicated that a human must do something in almost every step. This very human interaction creates many opportunities for error.

When the computer has arrived, CNC technology was introduced in production. Punch cards were replaced by floppy disks and serial cables. Transfer and data management has become much easier. CNC has revolutionized the manufacture of production because it allowed for automation to replace human intervention. Consequently, automation added a degree of control over the consistency and quality of components and products are manufactured. Furthermore, it was reduced operator stress and errors have been reduced. Operators now had more time to spend the work of higher value than repetitive tasks. Automation has a cost, however. The automation of higher, the higher the price of the machine.

The addition of Computer Aided Manufacturing (CAM) greatly simplified programming of CNC machines. Although CAM, which is typically done in an Office environment makes the heavy burden off of the operator of the programming, the programmer needs to know how the machine works really effective design programs. That's why the first machine operator experience is absolutely necessary for programming jobs.

CNC programming is based on a language called G-Code. G-codes actually specify the positions, orientations, and the movement's methods to run the job. Each machine uses variables unique to carry out its particular function (for example, drilling, cutting, stamping parts, etc.). In addition to G-Code, programming languages are used longer run programs with incremental and repetitive cycles. The use of this type of programming is more efficient than CAM alone and defines as most new and used CNC machines are programmed and managed today.

Although it has been introduced and accepted much earlier in the metal industry, wood processing industry has adopted CNC in most of his offers of industrial machinery. With over 20 years of acceptance, there are many woodworking machines used high quality CNC fully equipped and ready.

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