My question is about how do you learn how to work some of these machines? I know how to work a manual lathe,knee mill, surface grinder. I went to schoo for this. I know how to write basic g-code programs want to learn how to do mastercam but my question is how do you learn how to run some of these machines they have out there. I would really like to learn how to run a screw machine. I have been looking at pictures of some and boy does it look complex. Is there any kind of book or anything I could read to get more knowledge about it so I could work it. But how does a guy get knowledge about these machines?