Posts Tagged ‘Computer Aided Manufacturing’

History of CNC and Its Coding System

April 6th, 2011 No comments

Have you ever asked yourself how machines in a factory know exactly when to stop making the parts they’re supposed to make? Well, this really is all because of Computer Numerical Control (CNC). But to comprehend CNC, you have to know what Numerical Manage (NC) is.


North carolina machines were first introduced after the 2nd world battle as mass production became the trend. These machines were given some instructions in punched cards. However, these machines were hard-wired and their parameters were difficult to change.

These CNC machines still needed a great deal of human intervention. As one example of this point, try to take a look at the drill press. A lot of actions have to be taken in order to fabricate a product. The process is actually so complicated that a person needs to do something almost every step of the production process. This created an avenue for errors to occur as the likelihood of fatigue increased with the quantity growth.

CNC after that came into the picture when computers were introduced. Punched credit cards were replaced by weak disks, cables, and other software program transfer media. This managed to get easier to manage and modify data.

Production and production were revolutionized by the elevated automation of CNC machines. These machines permitted a degree of added manage over the quality and consistency of the components that were produced without any additional strain on the operators. This reduced the regularity of errors and allowed the operators time to perform additional tasks. Furthermore, this particular automation allowed a greater level of flexibility in the way components are held in the manufacturing process.

With the advent of Computer Aided Manufacturing (CAM), actually programming CNC machines is a snap. These types of programs actually take the majority of the programming process to make the operation less tiresome. However, to be an effective developer of CNC machines, you have to know what the machine you’re working on will be doing. That is why machinists are often the best people for the job.

The ease that the machines supply is hinged heavily on the quality of the machine. Low-cost CNC machines oftentimes have many functions that have to be manually activated. High-cost machines, however, are nearly fully automated. The operator only has to load or even unload workpieces. Once the cycle continues to be initiated, the operator simply has to sit back and watch for any malfunctions. The stress on the operator is so low that incidents where complain of boredom in the center of a cycle.


The actual programming language that CNC makes use of is called a G-Code. These codes actually position the parts and perform the work. To be able to have a machine work properly, you have to input the correct variables such as axes, reference factors, the machine accessories, and whatnot. Each and every machine has a different group of variables so you have to be cautious to take note of the differences.

Aside from the G-Code, logical commands or parametric encoding can be used to make the process much more time-efficient. This type of programming language reduces the length of lengthy programs with step-by-step passes. A loop may also be programmed thereby removing the requirement for coding repetitions.

Because of these features, parametric programming is more efficient than CAM. It allows customers to directly and effectively make performance adjustments. Additionally , it allows extensions to the functionality of the machine it is operating on.

And that makes CNC. Check out for more essential information.