What is CNC and What Type of Technology/Code is Used?

What is CNC and What Type of Technology/Code is Used? CNC stands for Computer Numerical Control, the necessary language for CNC machines to operate. CNC machines utilize that instruction/code to create a toolpath or blueplan for the machinery to achieve a finished product. CNC machining allows for the creation of parts, components, or workpieces that would normally be impossible to create using conventional machines.

A CNC machine runs on a set of CAD and CAM programmed code. The CAD software designs the models and assemblies that the CAM software translates into G-code and M-code that drive the CNC machine’s tools to turn those designs into physical parts.

Roberson Machine Company has over 20 years of experience operating, programming, and coding CNC machines. Get a free quote for your next CNC machine manufacturing or prototyping project today. Contact us or give us a call at 844-706-7710.

How Does Technology/Code Tell a CNC Machine What to Do?

G-code, short for Geometry Code and first designed and implemented by Massachusetts Institute of Technology in the 1950s, is in an alphanumeric format (a letter A-Z serves as a variable and two sets of numbers 1-9). In a programmed format, utilizing CAD and CAM software, G-code tells a CNC machine what to do and how to do it. The three sets of commands instruct the machine where to move, how fast to move, and what path to follow. Every CNC machine uses a different set of G-code, but the fundamentals are the same. The three basic types of G-code are:

  1. G00: used for rapid, non-cutting movements
  2. G01: used for straight-line movements, usually to cut material
  3. G02: used for circular movements at a feed speed

M-code, short for Machine Code, is only used for controlling the machine functions — start, stop, spindle, tool change, etc. A few basic examples of M-code include:

  • M02: End of program
  • M03: Spindle on
  • M05: Spindle stop

There are upwards of 100 G-codes and 30 M-codes. Our machinists use those on a daily basis and, depending on the type of CNC machine and the work order, may need to simultaneously program multiple codes on various machinery. CNC machinery saves us and our machinists time and, most importantly in the long run, saves our customers money.

What is CNC and What Type of Technology/Code is Used? | Roberson Machine Company

We are conscious of quality management, using only ISO 9001 and AS 9100 certified equipment. Our CNC machines only run on ISO 6983 certified code. We continually review our processes and standards — making sure we are current in all the applicable standards and guidelines — to ensure we are using only the best machines and materials, at the lowest cost, for our customers.

For assistance with your next CNC machining project, or to get a free quote, give us a call today at 844-706-7710 or contact us.