Hi guys! I am an aspiring CNC technician (apprentice). I am currently doing training in the aerospace sector and the machines we are using run Siemens 840d. I am starting to understand the various commands that the machine we are using executes and what they mean. I am definitely a novice so enjoy my entry level questions!
I am wondering?:
1. Are G codes a standard (are they the same across all machines) ?
2. Are M codes a standard (are they the same across all machines) ?
3. If they are machine specific where would I go to find these listed with meanings? For example we have a siemens 840d operating manual, would I be able to find these common conventions listed in there? Where do you veteran machinists go to understand code you haven't come across before?