Ok. So, I'm looking at building a small CNC lathe "from scratch", or if I can find a used/dead/working CNC lathe locally (San Jose, CA), retrofit it for PC control. I have some linear rails and ballscrews. I'd like to start out by using an existing lathe headstock, but I'm having some difficulty securing one. Anybody have a lathe headstock to sell? If I were to go the route of doing the headstock/spindle from scratch, what approach should I take? I was thinking about getting 4 angular contact bearings, 2 at each end of the spindle housing/headstock. As far as the spindle and taper, either find one of appropriate size, or, have one CNC ground out for me. Another idea I had was to simple have the OD turned on a piece of bar stock to suit the bearings, and then get the CNC lathe put together, and then once it is up and ready to go, use the lathe itself to bore the spindle and turn the taper.
Questions: Anybody have some lathe headstocks with good spindles and bearings they want to sell cheap? Anybody have a CNC lathe and/or grinder and willing to turn/grind a few simple spindles? What size and type of bearings would you recommend? Anybody have some big ID bearings of good quality and suitability? Anybody have a small CNC lathe they are willing to part with (in San Jose/SF Bay, CA area)?
Thanks!