09-08-2013, 12:54 PM
Great explanation Tom, makes sense now.
While on the subject, can't recall the tip but on my old Taiwanese 14x40 there was one, something like 17 or such that would never line up again if you opened the half nuts. Terry that ran a machine shop close to work said there were in fact a few combinations on his that were the same. Only way you could cut it was to stop the spindle and reverse the lathe with the half nut still engaged.
Which is the way I still thread on my Summit, the apron is so heavy and the half nuts a little tight that the comination makes it hard to kick it out in a grove but the automatic spindle brake stops it
While on the subject, can't recall the tip but on my old Taiwanese 14x40 there was one, something like 17 or such that would never line up again if you opened the half nuts. Terry that ran a machine shop close to work said there were in fact a few combinations on his that were the same. Only way you could cut it was to stop the spindle and reverse the lathe with the half nut still engaged.
Which is the way I still thread on my Summit, the apron is so heavy and the half nuts a little tight that the comination makes it hard to kick it out in a grove but the automatic spindle brake stops it
Free advice is worth exactly what you payed for it.
Greg
Greg