That’s a good one, what must i tell you about a Tail stock.
A: Clamping Lever
D: Hand wheel
E: Cross Adjustment
With the clamping lever you can fixate the tailstock on the ways.
When you turn the Hand wheel , the Barrel will be moved out or in.
This is a Barrel close up
This is the nonius of the cross adjustment
How do we test that the tailstock is in the middle?
Well that’s easy. We take a piece of round material with a center point on one side and we put it in the machine like this.
Place a Dial test indicator to it and set it to zero.
Then turn your material to the maximum and minimum. Turn it to the middle and set it to zero.
Make a line with a marker at the top of the material.
Do the same at the center side. So when you moves the Dial test indicator from one side ( with the marker at the top ) to the other side ( with the marker at the top ) , then must the Dial test indicator be at zero. Else you must change the cross adjustment.
I hope you have understand what i mean. My English is not so good.