I don't understand why anyone needs a lathe to replace a tip.
All you need is a razor blade, glue and your tip tool.
Thanks, this is a great find!
Very cool. I suspect the original designer/builder is a machinist of some kind. A few of the parts look like they need to be custom milled. Having built a lathe it would seem to me that getting the spindle (the part that holds the straight-shank ER collet chuck) properly aligned with the bed ways would be one of the most difficult parts of the build.
Dave