If lathe has neutral place it there or in highest speed to turn by hand but remember to shift back.
Regarding thread dial...
We are not pros and never remember processes but it seems that some operations require any number while others require odd and others require even.
So get some junk scrap and some dykem or felt tip pens.
Turn the scrap clean then paint it with the ink.
Place a scribe in your tool post such as a spring so it can give a bit.
Now you are cutting "virtual" threads.
Repeat cuts should land on the same mark.
If a washer is missing from under the thread dial or one added it may change the relationship to the 1/2 nuts.
Also if the 1/2 nuts are upside down it may change the relationship with thread dial.
Focus on why the nuts cannot engage exactly in a mark.
Slop elsewhere cad wind itself out via engaging ahead of time but the 1/2 nuts need to be proper to the thread dial
Sent from my SAMSUNG-SGH-I337Z using Tapatalk
Regarding thread dial...
We are not pros and never remember processes but it seems that some operations require any number while others require odd and others require even.
So get some junk scrap and some dykem or felt tip pens.
Turn the scrap clean then paint it with the ink.
Place a scribe in your tool post such as a spring so it can give a bit.
Now you are cutting "virtual" threads.
Repeat cuts should land on the same mark.
If a washer is missing from under the thread dial or one added it may change the relationship to the 1/2 nuts.
Also if the 1/2 nuts are upside down it may change the relationship with thread dial.
Focus on why the nuts cannot engage exactly in a mark.
Slop elsewhere cad wind itself out via engaging ahead of time but the 1/2 nuts need to be proper to the thread dial
Sent from my SAMSUNG-SGH-I337Z using Tapatalk