07-05-2014, 09:16 AM
(07-05-2014, 09:03 AM)PixMan Wrote: The diameter shouldn't matter. If the dial has .200" worth of graduations and you are coming around to the same line for one revolution, it should travel .100" per turn because it's a 5/8-10 LH Acme thread.
If you only get .099", then my lathe's gearing must be off by 1%. Nuts. That frustrates me as there's really no way to fix your screw nor my lathe.
Ken,
The dial has .100" worth of graduations. Good point about the diameter. I thought about it and realized as long as the dial is marked properly then the diameter shouldn't matter.
It's not a big deal since I have the DRO. I think I'll try remeasuring with a couple of different dial indicators and see if I get the same reading. Once I have the DRO scale reinstalled I can check it with that also.
Ed