On a lathe I converted over to Mach 3, I have an issue with feed speed when called from a program. I am using feed/rev as the feed method. If I step through the program, the feed speed is fine. If I run the program the feed speed is very slow. I can stop the program, restart the spindle manually then hit cycle start and the feed is correct. I have not physically cut a thread yet but during air cutting the feed speed for a program with threading in it seems fine. Can anyone shed some light on this for me?
Thanks
havery