Before the advent of computers, machinists used cards or tapes to control machine movements. They punched holes in these cards in a specific order to create the codes. While this was also effective at the time, it was quite tedious. Also, these cards were prone to damage or getting lost in the machine shops. This led to several problems in production at the time.
When machinists started using computers for numerically controlled machines, they still came across a few problems. This was because they had to input the codes manually. This would, of course, be very tedious when they were making quite sophisticated parts that required a lot of instructions.
The advent of advanced computers and software has revolutionized CNC machining. Machinists now simply input instructions into software, which then generates the necessary G codes and M codes for the machines. This process, greatly simplified by CAD and CAM software, has made code generation and machine operation more efficient and accessible, enhancing both precision and complexity in manufacturing.
To start the process, the programmer needs high-level computer-aided software. The programmer then imports the machine model and the machining fixture into the software, then selects the tools and the tooling paths of the spindle. Once these parameters are set, the software efficiently generates the requisite G and M codes, which are essential for the CNC machine to operate effectively.
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