Greg,
It was one of these odd things, that seem to happen. I have checked the four jaw chuck and how well it fit the the spindle nose.
I moved the compound ever so slightly and then moved it again probably back to where it was. I think this was all me, the four jaw is a bit heavy to use as a gauge
The face plate would have been a better choice.
I am sure the taper was "zeroed" right, it was more me looking for it not to be right. After I had a cup of tea and thought about it I was then convinced it was me gauging the taper and not the taper that was wrong.
Like you say if the taper is "zeroed" then it can't really be wrong and there is no need for any adjustment.
DaveH
It was one of these odd things, that seem to happen. I have checked the four jaw chuck and how well it fit the the spindle nose.
I moved the compound ever so slightly and then moved it again probably back to where it was. I think this was all me, the four jaw is a bit heavy to use as a gauge
The face plate would have been a better choice.I am sure the taper was "zeroed" right, it was more me looking for it not to be right. After I had a cup of tea and thought about it I was then convinced it was me gauging the taper and not the taper that was wrong.
Like you say if the taper is "zeroed" then it can't really be wrong and there is no need for any adjustment.
DaveH