RE: Senior Project EDM Design Hesse, Robert Hesse, Sean To: Cc: Sean, Alright. I have to design a drive assembly for converting rotational motion to linear motion (lead screw). The trick is that the assembly must mount on the back of the J-head of a milling machine. If you want, I can give you the details and some of the specs if you want to come up with a few concept designs. And then we can start thinking about specific parts. I have a few ideas of my own for design, but if you come up with something better, maybe we can run with it. Thank you, Bob