hi, i have a problem, we are running a twin turret okuma lathe, and are haveing problems with the bottom turret cutting a inside threads, as it is cutting down. our "engineer" says we should use the second turret and cut up, instead of a simple fix of just switching some tools around to thread from the top turret. i tried to explain to him that flipping it around will be a night mare as it will reverse all the programing and offsets as the all the + would be negatives and so on... he thinks the machine will be smart enough to figure it out on his own, but i fail to see how a machine will be smart enough not to do what its programmed to do... i did some research and i found G68 and 69 which is mirror image on and off, think this would help in this situation? sorry if my explanation of all this is hard to undertsand...