Greetings Everyone, I recently picked up a 17" Leblond lathe of mid 50's vintage. From what I can tell so far its an OK machine. I am wanting to measure the wear on the ways and from searching around it sounds like a somewhat difficult task without good instrumentation. I am hoping to do a little better than a straightedge and using the optical comparator I was born with. So my question is if I chucked a ground drive shaft (45mm) and held it with the tail stock, would running an indicator across it tell me anything useful? Thanks, Matt PS, This seems like quite the nice group on here.