[cncadmin]

G-Code is the common name for the programming language of CNC Machines. Somewhat of a generic, catch-all type of term for CNC programming language. Very few machines adhere to this standard today. There are as many varations as there are manufacturers.

[acejunker]

Are G codes and M codes same for all machines..

[Al_The_Man]

No, they depend on whether its a Mill, Lathe,PLasma, Punch etc, they all have their own method of G code.
The M code is fairly standard, but depends on the whim of the MTB, not the control manuf, as it is in G code.
Al.

[acejunker]

MTB?? Machine tool builder?

[acejunker]

Machine tool builder?

[acejunker]

As far as I know.. Fanuc and Siemens are the two big players with few MTBs coming with their own controls. Which among them is better in what aspects.. And does it make a real difference in the output quality

[Al_The_Man]

As far as I know.. Fanuc and Siemens are the two big players with few MTBs coming with their own controls. Which among them is better in what aspects.. And does it make a real difference in the output quality

Don't forget Mazak (Mitsubishi) of which Mitsubishi also manufacture machine tools, which is rare.
Most of the major Control manuf have their own unique feature of some kind, I find there is not a lot between them, another thing to consider is support and technical assistance.
Al.

[ger21]

Most big industrial woodworking machines use their own proprietary controls, with many proprietary g and m codes.

[Al_The_Man]

I see no purpose in deviating from the normal G codes that apply for a certain type of machine, this was the original concept of the International ISO G-code standard anything else leads to confusion between machines of the same type?
Al.

[acejunker]

When and where are G codes and M codes used in a program(asking for overview). To generate a program is it necessary to memorise these codes??

[Al_The_Man]

Not sure of the actual question, but if you want to learn about G M code programming, get the CNC programming book by Peter Smid.
You need the control manuf programming manual and the MTB's M code designation for a particular machine.
Al.

[acejunker]

Precisely what I needed. Thanks

[hashim2000]

what is G code how it increases its vale like BCD

[Al_The_Man]

what is G code how it increases its vale like BCD

G-Code is not a processor programming language per-se, but more a form of CNC part program format.
Al.

[sunny_daise]

G-code (also RS-274), which has many variants, is the common name for the most widely used numerical control (NC) programming language. It is used mainly in computer-aided manufacturing for controlling automated machine tools. G-code is sometimes called G programming language. That's the general idea from Wikipedia, hope can be helpful~