| Hi, I'm new here but I've had some machine shop experience in the distant past. Kevin is quite right about neg rake and HSS tooling, but I hope that he won't mind if I add that you can virtually discard your carbide tools for model engineering unless they are of the correct grade and quality for the job, and your machine is fast enough and rigid enough to impart the required finish. I finish grind my HSS tools with a smooth diamond file, hone them when appropriate, and you will be amazed at the results. Mind you, my ancient EMCO MaximatV10 helps. I have owned two Chinese lathes but stumped up the money for something decent!
Great site and I look forward to contributing where I can.
John Barrett |