NativeCAM is Features renamed

20. File Requirements A G code file must contain one or more lines of G code and be terminated with a Program End. Any G code past the program end is not evaluated. If a program end code is not used a pair of percent signs % with the first percent sign on the first line of the file followed by one or more lines of G code and a second percent sign. Any code past the second percent sign is not evaluated. Warning Using % to wrap a G code file will not do the same thing as using a program end. The machine will be in what ever state the program left it in using %, the spindle and coolant may still be on and things like G90/91 are left as the last program set them. If you don’t use a proper preamble the next program could start in a dangerous condition. Note The file must be created with a text editor like Gedit and not a word processor like Open Office Word Processor.