hello

let's suppose that 2 tools begin an od pinch turning at same x and :
... same z, thus the cutting edges are mirrored:
...... after final z is reached, should there be enough to dwell the spindle for half a revolution in order to achieve a clean face ?
...... did each tool removed the same quantity of chips ?
... different z, thus both cut the same diameter, but one is a bit behind on z; what is the maximum z difference allowed, after which pinch turning no longer occurs ( only leading tool will cut, while the following will cut air ) ? is it g95 feed / 2 ?


what is the best approach for difference in relative position between each other tool, like one should be higher on x, and in front on z ? is there a recomandation to have the upper turret tool on higher x, or the lower turret tool on higher x, or it doesn't matter ? should the tools differ on both x&z, or only x, only z, or no difference ( like a mirror cut ) ?


if a difference in x is used, then should it be like each tool to cut the same doc ? or is there a recomandation for 40-60% for some reason ?

if a difference in z is used, then what should it be, and why ? is it true that, if a z difference exists, then the end face won't look smooth, because each tool finished at different z values ? or, even if a z difference exists between tools, is possible to reach same z end for both tools ? or generic z difference is small, making the aspect of the end face to be accepted ?

please, are there some general guidelines ? like practical approaches, ideas based on which the code approach is built ( beside the need for syncronized labels between turrets ) / kindly