I have 2 straight barrels(no profile). I want to try make one a octagon and the other flutes. I have a Rong Fu (RF- 20) mill and a EMCO Maximat V10-P lathe.These are hobby equipt but its what I have. I don't have nor at my age do I want to put out more money for tooling over what I have. Any one ever make your own fixture to do this on a mill or a lathe?