Using the profiling function in the place where a CNC machine is used for profiling and rounding can simplify the program, reducing the programming workload and lowering the likelihood of errors when using the CNC machine for producing plastic or aluminum metal parts. How to program the radius on a CNC machine? To program the radius on a CNC machine, you need to know how to work with the machine control system. There are two options: - Using a program editor - Using a G-code editor In terms of ease of use, the G-code editor is preferable, as with this knowledge, you can create any motion using your program.