From my experience Fanuc & Haas controllers dont show the leading % (idk why) but they do show the trailing one.

If they arnt in the code, in the editor, the program wont load onto the machine. The % is the signal for the start of file and the end of file.

Also, check the parameters of the machine/DNC setup. Some controllers want %#0A for a file start. If your settings have just %, try %#0A, or visa-versa.

I have a Wasino lathe with 21-T Fanuc control. Using DNC Precision to transfer programs and CNC Syntax Editor to view/edit them.

The machine and the computer can send/receive files fine.

However, when i punch out a program it loses the starting and ending %. Through some trial and error I can see that the % is being transferred, but it doesnt show up in the Editor. Without the %, the lathe will not read in the program.

Ideas?