Ok so been in manufacturing for about 6 years and I'm still pretty green. I mostly ran Fanuc and haas controls at my previous job. I moved on from my previous job and started a new one about a year ago. When I started the one lonely Okuma lathe just sat off I would ask questions but the guys in the shop would say that thing is "impossible" to run without mastercam and that machine has a "different language" I get it the guys here only know manual guide i they don't know g code and they refuse to use mastercam even tho its available to anyone here. So my curiosity got the best of me and I have been trying to teach myself to run it. I can get most things done on it with mastercam which I taught myself to use as well so im not very good at it. I have hit a hiccup and im trying to figure out how to use an endmill to mill a groove around the OD of a cylindrical part. The program mastercam spit out doesnt work I have attached a screenshot of verify. I also have to mill that slot on the front of the part o and the part is hardened to 56 RC . I have found a programming manual I am going through but I will take any information and I mean any information on running this thing. Dont be too harsh on me tho.